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Angela Seddon

Professor of Inorganic Materials, Faculty of Engineering

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Expertise Summary

 

Angela Seddon holds the Chair in Inorganic Materials at Nottingham University, UK. From October 2007, she will additionally hold the award of Royal Academy of Engineering / Leverhulme Trust Senior Research Fellowship. She heads up the Novel Photonic Glasses Group and the over-arching Advanced Materials Research Group at Nottingham. Experimental facilities,housed in the Wolfson Centre for Materials Research, are world-class. The aim of her research is to bring understanding to how the nano- and micro-structureof special glasses influence glass optical properties and ultimate optical device performance and she has published over 140 research papers. The laboratory facilities at Nottingham University for synthesising and fabricating these glasses include a class 10,000 cleanroom Fab. Lab., housing a customisedHeathway tower for drawing novel optical fibres and novel processing facilitiesfor making planar, small-scale waveguides.

High-silica glasses are known for their excellent linear optical properties and are, for instance, the material of choice for long haul optical fibres. Novel inorganic-compound glasses such as heavy metal halides, oxides and oxyhalides, and chalcogenides, are based on more weakly chemically bonded lattices than silica. These novel glasses are therefore rather less chemically and mechanically robust than silica glass. Onthe other hand, they offer far more optical versatility than silica glass including: windows spanning the near-ultraviolet to far-infrared; large solubility of active rare earth dopants; low phonon energy for greater efficiency of radiative transitions; large linear and nonlinear refractive indices;high third order nonlinear optical susceptibilities; nano-glass-ceramicformation; great photosensitivity and a large acousto-optic effect. Being glasses means that compositions are not fixed to a single stoichiometry but almost infinitely variable, allowing the possibility of tailoring optical properties to suit, such as for all-optical switching, amplification, sources, sensors, memory, interconnects and photonic and electronic integration. Also inorganic compound glasses are generally isotropic hence optical orientation is not a problem compared to crystallinematerials.

Recent achievements of the Novel Photonic Glasses Group at Nottingham University include showing that erbium III doped into nano-glass-ceramics exhibits the broadest emission reported to date, to our knowledge, at 1.55 micron wavelength compared to when doped into other hosts. In addition, the doping levels achieved are ~ 100 x that in contemporary EDFA (erbium doped fibre amplifiers). Hence the doped nano-glass-ceramics have potential as next generation micro-amplifiers of far greater system flexibility than current amplifiers for telecom. systems.

Photonic and electronic integration on a single chip demands innovative, flexible fabrication technologies. Over thelast few years we have demonstrated for the first time that hot embossing of novel inorganic-compound glasses successfully produces waveguides and other features to better than 0.1 µm -scale definition. We have recently demonstrated monomode rib waveguides made by the hot embossing route. These are the basic building blocks of photonic integrated circuits.

We are developing low optical loss, novel glass optical fibres for the infrared for power delivery and sensing for instance for medical surgery and diagnoses, respectively.

Research Summary

Angela Seddon holds the Chair in InorganicMaterials at Nottingham University, UK. From October 2007, she will additionally hold the award of Royal Academy of Engineering / Leverhulme Trust Senior… read more

Selected Publications

Current Research

Angela Seddon holds the Chair in InorganicMaterials at Nottingham University, UK. From October 2007, she will additionally hold the award of Royal Academy of Engineering / Leverhulme Trust Senior Research Fellowship. She heads up the Novel Photonic Glasses Group and the over-arching Advanced Materials Research Group at Nottingham. Experimental facilities,housed in the Wolfson Centre for Materials Research, are world-class. The aim of her research is to bring understanding to how the nano- and micro-structure of special glasses influence glass optical properties and ultimate optical device performance and she has published over 140 research papers. The laboratory facilities at Nottingham University for synthesising and fabricating these glasses include a class 10,000 cleanroom Fab. Lab., housing a customised Heathway tower for drawing novel optical fibres and novel processing facilities for making planar, small-scale waveguides.

High-silica glasses are known for their excellent linear optical properties and are, for instance, the material of choice for long haul optical fibres. Novel inorganic-compound glasses such as heavy metal halides, oxides and oxyhalides, and chalcogenides, are based on more weakly chemically bonded lattices than silica. These novel glasses are therefore rather less chemically and mechanically robust than silica glass. On the other hand, they offer far more optical versatility than silica glass including: windows spanning the near-ultraviolet to far-infrared; large solubility of active rare earth dopants; low phonon energy for greater efficiency of radiative transitions; large linear and nonlinear refractive indices; high third order nonlinear optical susceptibilities; nano-glass-ceramic formation; great photosensitivity and a large acousto-optic effect. Being glasses means that compositions are not fixed to a single stoichiometry but almost infinitely variable, allowing the possibility of tailoring optical properties to suit, such as for all-optical switching, amplification, sources, sensors, memory, interconnects and photonic and electronic integration. Also inorganic compound glasses are generally isotropic hence optical orientation is not a problem compared to crystalline materials.

Recent achievements of the Novel Photonic Glasses Group at Nottingham University include showing that erbium III doped into nano-glass-ceramics exhibits the broadest emission reported to date, to our knowledge, at 1.55 µm wavelength compared to when doped into other hosts. In addition, the doping levels achieved are ~ 100 x that in contemporary EDFA (erbium doped fibre amplifiers). Hence the doped nano-glass-ceramics have potential as next generation micro-amplifiers of far greater flexibility than current amplifiers for telecom. systems.

Photonic and electronic integration on a single chip demands innovative, flexible fabrication technologies. Over the last few years we have demonstrated for the first time that hot embossing ofnovel inorganic-compound glasses successfully produces waveguides and other features to better than 0.1 µm -scale definition. We have recently demonstrated monomode rib waveguides made by the hot embossing route. These are the basicbuilding blocks of photonic integrated circuits.

We are developing low optical loss, novel glass optical fibres for the infrared for power delivery and sensing forinstance for medical surgery and diagnoses, respectively.

  • SOJKA, L., BERES-PAWLIK, E., JAWORSKI, P., GORA, W., FURNISS, D., SEDDON, A., BENSON, T. M., MERGO, P. and SUJECKI, S., 2011. Theoretical and Experimental Study of Erbium Doped Photonic Crystal Fiber Ring Laser In: Proceedings of the 11th International Conference on Numerical Simulation of Optoelectronic Devices, NUSOD'11. 5th - 8th September 2011. Rome.. 69-70
  • SOJKA, L., JAWORKSKI, P., GORA, W., FURNISS, D., SEDDON, A., BENSON, T. M., MERGO, P., SUJECKI, S. and BERES-PAWLIK, E., 2011. Erbium Doped Photonic Crystal Fibre Laser In: Proceedings of the 2011 International Conference on Transparent Optical Networks, 26th - 30th June 2011, Stockholm, Sweden..
  • ROMANOVA, E. A., SHIRYAEV, V. S., FURNISS, D., SEDDON, A. B. and BENSON, T. M., 2011. Chalcogenide Waveguides as a Base for Engineering Broadband Light Sources in the Mid-Infrared In: Proceedings of the 2011 International Conference on Transparent Optical Networks, Stockholm, Sweden, 26th - 30th June 2011..
  • A. B. SEDDON, 2011. A Prospective for New Mid-infrared Medical Endoscopy using Chalcogenide Glasses: Invited Paper International Journal of Applied Glass Science. 2(3), 117 - 191
  • SEDDON, AB, TANG, ZQ, FURNISS, D, SUJECKI, S and BENSON, TM, 2010. Progress In Rare-Earth-Doped Mid-Infrared Fiber Lasers Optics Express. 18(25), 26704-26719
  • PRASAD, N, FURNISS, D, ROWE, HL, MILLER, CA, GREGORY, DH and SEDDON, AB, 2010. First Time Microwave Synthesis Of As40se60 Chalcogenide Glass Journal Of Non-Crystalline Solids. 356(41-42), 2134-2145
  • LIAN, Z. G., LI, Q. Q., FURNISS, D., BENSON, T. M. and SEDDON, A. B., 2009. Solid Microstructured Chalcogenide Glass Optical Fibers for the Near- and Mid-Infrared Spectral Regions IEEE Photonics Technology letters. 21(24), 1804 - 1806
  • ENDRUWEIT, A, ALOBAIDANI, AD, FURNISS, D, SEDDON, AB, BENSON, T, JOHNSON, MS and LONG, AC, 2008. Spectroscopic Experiments Regarding The Efficiency Of Side Emission Optical Fibres In The Uv-A And Visible Blue Spectrum Optics And Lasers In Engineering. 46(2), 97-105
  • W J PAN, H ROWE, D ZHANG, Y ZHANG, A LONI, D FURNISS, P SEWELL, T M BENSON and A B SEDDON, 2008. One-step Hot Embossing of Optical Rib Waveguides in Chalcogenide Glasses Microwave and Optical Technology Letters. 50(7), 1961 - 1963
  • A B SEDDON, D FURNISS, L ZHENG, E V BEKKER and T M BENSON, 2008. Review of Novel Glass Photonic Crystal Fibres In: Proceedings of the IEEE / LEOS Winter Topicals Meeting Series, Sorrento, Italy. 14th - 16th January 2008..
  • H L ROWE, J D SHEPHARD, D FURNISS, C A MILLER, S SAVAGE, T M BENSON, D P HAND and A B SEDDON, 2008. The Application of the Mid-Infrared Spectral Region in Medical Surgery: Chalcogenide Glass Optical Fibre for 10.6um Laser Transmission In: SPIE Proceedings of Photonics West, USA, January 2008. Paper 6852-07: Session "Optical Fibres & Sensors for Medical Diagnosis and Treatment.
  • A B SEDDON, D FURNISS, W J PAN, P SEWELL, A LONI, Y ZHANG and T M BENSON, 2008. Review: Fine Embossing of Novel Glasses for Photonic Integrated Circuits In: Proceedings of SPIE Symposium on Integrated Optoelectronic Devices and Integrated Circuits, Paper Number 6890-7 Optical Components and Materials V. 19th - 24th January 2008, San Jose, USA..
  • S D SAVAGE, C A MILLER, D FURNISS and A B SEDDON, 2008. Extrusion of Chalcogenide Glass Preforms and Drawing to Multimode Optical Fibres Journal of Non-Crystalline Solids. 354(29), 3418 - 3427
  • J LOUSTEAU, D FURNISS, H F ARRAND, T M BENSON, P SEWELL and A B SEDDON, 2008. Fabrication of Heavy Metal Fluride Glass Optical Planar Waveguides by Hot-Spin-Casting Journal of Non-Crystalline Solids. 354(32), 3877-3886
  • PAN, W. J., FURNISS, D., ROWE, H., MILLER, C. A., LONI, A., SEWELL, P., BENSON, T. M. and SEDDON, A. B., 2007. Fine embossing of chalcogenide glasses: First time submicron definition of surface embossed features JOURNAL OF NONCRYSTALLINE SOLIDS. VOL 353(NUMBER 13-15), 1302-1306
  • O'DONNELL, M. D., RICHARDSON, K., STOLEN, R., SEDDON, A. B., FURNISS, D., TIKHOMIROV, V. K., RIVERO, C., RAMME, M., STEGEMAN, R. and STEGEMAN, G., 2007. Tellurite and Fluorotellurite Glasses for Fiberoptic Raman Amplifiers: Glass Characterization, Optical Properties, Raman Gain, Preliminary Fiberization, and Fiber Characterization JOURNAL- AMERICAN CERAMIC SOCIETY. VOL 90(NUMBER 5), 1448-1457
  • O DONNELL, M. D., FURNISS, D., TIKHOMIROV, V. K., BRIGGS, D., SMITH, E. F. and SEDDON, A. B., 2007. Surface properties of tellurite and fluorotellurite glasses JOURNAL OF MATERIALS RESEARCH -PITTSBURGH THEN WARRENDALE-. VOL 22(NUMB 6), 1673-1684
  • TIKHOMIROV, V. K., MENDEZ-RAMOS, J., RODRIGUEZ, V. D., FURNISS, D. and SEDDON, A. B., 2007. Gain cross-sections of transparent oxyfluoride glass-ceramics single-doped with Ho3+ (at 2.0mm) and with Tm3+ (at 1.8mm) JOURNAL OF ALLOYS AND COMPOUNDS. VOL 436(NUMBER 1-2), 216-220
  • SEDDON, A.B., PAN, W.J., FURNISS, D., MILLER, C.A., ROWE, H., ZHANG, D., MCBREARTY, E.M., ZHANG, Y., LONI, A., SEWELL, P. and BENSON, T.M., 2006. Fine embossing of chalcogenide glasses - a new fabrication route for photonic integrated circuits Journal of Non-Crystalline Solids. 352(23-25), 2515-2520
  • ZHANG, Y., BENSON, T. M., SEWELL, P., VUKOVIC, A., ZHANG, D., PAN, W. J., LONI, A., FURNISS, D. and SEDDON, A. B., 2006. The Design of Single Mode Large Cross-section Glass-based Waveguides for Photonic Integrated Circuits OPTICAL AND QUANTUM ELECTRONICS. VOL 38(NUMBER 1-3), 97-110
  • ZHANG, Y., ZHANG, D., PAN, W., ROWE, H., BENSON, T., LONI, A., SEWELL, P., FURNISS, D. and SEDDON, A. B., 2006. Photonic integrated circuits based on novel glass waveguides and devices [6183-10] PROCEEDINGS- SPIE THE INTERNATIONAL SOCIETY FOR OPTICAL ENGINEERING. VOL 6183, 61830A-61830A
  • ZHANG, D., PAN, W., ZHANG, Y., LONI, A., SEWELL, P., BENSON, T. M., MILLER, C. A., FURNISS, D. and SEDDON, A. B., 2006. Large core single-mode glass-based waveguides for photonic integrated circuits PROCEEDINGS- SPIE THE INTERNATIONAL SOCIETY FOR OPTICAL ENGINEERING, Photonics West. 6123, 115 - 123
  • O DONNELL, M. D., FURNISS, D., TIKHOMIROV, V. K. and SEDDON, A. B., 2006. Low loss infrared fluorotellurite optical fibre PHYSICS AND CHEMISTRY OF GLASSES. VOL 47(NO 2), 121-126
  • TIKHOMIROV, V. K., MÉNDEZ-RAMOS, J., RODRÍGUEZ, V. D., FURNISS, D. and SEDDON, A. B., 2006. Laser and gain parameters at 2.7μm of Er3+-doped oxyfluoride transparent glass–ceramics OPTICAL MATERIALS -AMSTERDAM-. VOL 28(NUMBER 10), 1143-1146
  • TIKHOMIROV, V. K., SEDDON, A. B., KOCH, J., WANDT, D. and CHICHKOV, B. N., 2005. Fabrication of buried waveguides and nanocrystals in Er<sup>3+</sup>-doped oxyfluoride glass Physica Status Solidi. A, Applied Research. 202(7), R73-R75
  • RODRÍGUEZ, V.D., TIKHOMIROV, V.K., MÉNDEZ-RAMOS, J. and SEDDON, A.B., 2005. The shape of the 1.55 µm emission band of the Er<sup>3+</sup>-dopant in oxyfluoride nano-scaled glass-ceramics Europhysics Letters. 69(1), 128-134
  • BENSON, T.M., VUKOVIC, A., SEWELL, P., LONI, A., PAN, W., ZHANG, D., O''DONNELL, M.D., LOUSTEAU, J., FURNISS, D. and SEDDON, A.B., 2005. Novel glass compositions and fabrictaion technologies for photonic integrated circuits In: Proceedings of 2005 7th International Conference on Transparent Optical Networks. 296-299
  • ZHANG, Y., PAN, W., ZHANG, D., BENSON, T.M., SEWELL, P., LONI, A., FURNISS, D. and SEDDON, A.B., 2005. Hot-embossing of Glass: a new approach to photonic integrated circuits In: European Optical Society Topical Meeting on Optical Microsystems.
  • ZHANG, Y., BENSON, T.M., SEWELL, P., ZHANG, D., PAN, W., FURNISS, D. and SEDDON, A.B., 2005. The design of glass-based waveguides for photonic integrated circuits In: Proceedings of the 13th International Workshop on Optical Waveguide Theory and Numerical Modelling.
  • O'DONNELL, M.D., BENSON, T.M., SEWELL, P., ZHANG, Y., ZHANG, D., FURNISS, D., TIKHOMIROV, V.K. and SEDDON, A.B., 2005. Fluorotellurite glasses for fibre-on-glass (FOG) devices In: 17th University Conference on Glass Science, and 1st International Materials Institute Workshop on New Functionality in Glasses.
  • ZHANG, D., PAN, W., ZHANG, Y., BENSON, T.M., MILLER, C., ROWE, H., FURNISS, D. and SEDDON, A.B., 2005. Fabrication technologies for novel glass based waveguides In: Seventh International Conference on Mid-Infrared Optoelectronic Materials and Devices.
  • TOSELLO, C., MONTAGNA, M., MATTARELLI, M., FERRARI, M., CHAUSSEDENT, S., MONTEIL, A., TIKHOMIROV, V. K. and SEDDON, A. B., 2005. Er3+- and Tm3+-Containing Ultra-Transparent Oxyfluoride-Based Glass Ceramics for Wavelength Division Multiplexing Optical Amplifiers GLASS PHYSICS AND CHEMISTRY C/C OF FIZIKA I KHIMIIA STEKLA. VOL 31(NUMBER 3), 377-381
  • MATTARELLI, M., MONTAGNA, M., ROSSI, F., FERRARI, M., TIKHOMIROV, V. K. and SEDDON, A. B., 2005. Tm^3^+-Activated Transparent Oxyfluoride Glass Ceramics: A Study by Raman Scattering of the Nanocrystal Size Distribution IFIP International Conference on Digital Forensics; Advances in digital forensics. 506-513
  • MATTARELLI, M., MONTAGNA, M., ROSSI, F., FERRARI, M., TIKHOMIROV, V. K. and SEDDON, A. B., 2005. Tm3+-Activated Transparent Oxyfluoride Glass Ceramics: A Study by Raman Scattering of the Nanocrystal Size Distribution GLASS PHYSICS AND CHEMISTRY C/C OF FIZIKA I KHIMIIA STEKLA. VOL 31(NUMBER 4), 519-524
  • MARTINO, M., CARICATO, A. P., FAZZI, A., ROMANO, F., TIKHOMIROV, V. K., SEDDON, A. B., MATTARELLI, M., CHIAPPINI, A. and VISHNUBHATLA, K. C., 2005. Pulsed laser deposition of Er3+-doped oxyfluoride thin films JOURNAL OF NONCRYSTALLINE SOLIDS. VOL 351(NUMBER 21-23), 1810-1813
  • LOUSTEAU, J., FURNISS, D., SEDDON, A.B., BENSON, T.M., VUKOVIC, A. and SEWELL, P., 2004. The single mode condition for silicon-on-insulator optical rib waveguides with large cross-section Journal of Lightwave Technology. 22(8), 1923-1929
  • TIKHOMIROV, V.K., FURNISS, D., SEDDON, A.B., SAVAGE, J.A., MASON, P.D., ORCHARD, D.A. and LEWIS, K.L., 2004. Glass formation in the Te-enriched part of the quaternary Ge-As-Se-Te system and its implication for mid-infrared optical fibres Infrared Physics & Technology. 45(2), 115-123
  • BENSON, T.M., VUKOVIC, A., WYKES, J.G., SEWELL, P., LOUSTEAU, J., FURNISS, D. and SEDDON, A.B., 2004. The single mode connection for large cross-section optical rib waveguides In: Proceedings 12th International Workshop on Optical Waveguide Theory and Numerical Modelling.
  • ZHANG, D., LOUSTEAU, J., O'DONNELL, M.D., FURNISS, D., TIKHOMIROV, V.K., ZHANG, Y., SEWELL, P., BENSON, T.M. and SEDDON, A.B., 2004. FOG devices for photonic integrated circuits In: Advances in Glass and Optical Technology: Proceedings of the 14th International Symposium on Non-Oxide Glasses and Novel Optical Glasses (ISNOG XIV) and American Ceramics Society Glass and Optical materials Division (GOMD) Fall meeting 2004.
  • BENSON, T.M., VUKOVIC, A., SEWELL, P., ZHANG, D., O''DONNELL, M.D., LOUSTEAU, J., FURNISS, D. and SEDDON, A.B., 2004. Fibre on glass (FOG): a novel concept for planar photonics In: Proceedings of 2004 6th International Conference on Transparent Optical Networks. 270-273
  • TIKHOMIROV, V. K., RODRíGUEZ, V. D., MéNDEZ-RAMOS, J., NúñEZ, P. and SEDDON, A. B., 2004. Comparative spectroscopy of (ErF3)(PbF2) alloys and Er3+-doped oxyfluoride glass-ceramics Optical Materials. VOL 27(NUMBER 3), 543-547
  • MATTARELLI, M., TIKHOMIROV, V. K., SEDDON, A. B., MONTAGNA, M., MOSER, E., CHIASERA, A., CHAUSSEDENT, S., NUNZI CONTI, G., PELLI, S. and RIGHINI, G. C., 2004. Tm3+-activated transparent oxy-fluoride glass–ceramics: structural and spectroscopic properties JOURNAL OF NONCRYSTALLINE SOLIDS. VOL 345-346, 354-358
  • TIKHOMIROV, V. K., ASATRYAN, K. E., GALSTIAN, T. V., VALLEE, R. and SEDDON, A. B., 2004. Photoinduced birefringence in tellurite glasses APPLIED PHYSICS LETTERS. VOL 84(PART 21), 4263-4264
  • MENDEZ-RAMOS, J., TIKHOMIROV, V. K., SEDDON, A. B. and RODRIGUEZ, V. D., 2004. Flat gain cross-section of 1.5 mum amplifier in Er^3^+-doped oxyfluoride glass-ceramics PHYSICA STATUS SOLIDI A APPLIED RESEARCH. VOL 201(PART 9), R57-R59
  • TIKHOMIROV, V. K., SEDDON, A. B., FERRARI, M., MONTAGNA, M., SANTOS, L. F. and ALMEIDA, R. M., 2004. On a qualitative model for the incorporation of fluoride nano-crystals within an oxide glass network in oxy-fluoride glass-ceramics JOURNAL OF NONCRYSTALLINE SOLIDS. VOL 337(NUMBER 2), 191-195
  • LOUSTEAU, J., FURNISS, D., SEDDON, A.B., SEWELL, P. and BENSON, T.M., 2003. Fluoride glass planar waveguides for active applications Materials Science & Engineering. B, Solid-State Materials for Advanced Technology. 105(1-3), 74-78
  • LOUSTEAU, J., FURNISS, D., SEDDON, A.B., SEWELL, P., VUKOVIC, A. and BENSON, T.M., 2003. The influence of fabrication on the electromagnetic properties of fluoride glass rib waveguides In: Piers 2003.
  • O'DONNELL, M. D., MILLER, C. A., FURNISS, D., TIKHOMIROV, V. K. and SEDDON, A. B., 2003. Fluorotellurite glasses with improved mid-infrared transmission Journal of Non-Crystalline Solids. VOL 331(NUMBER 1-3), 48-57
  • SHEPHARD, J. D., KANGLEY, R. I., HAND, R. J., FURNISS, D., MILLER, C. A. and SEDDON, A. B., 2003. Properties of Ga-La-Na sulphide glasses Journal of Non-Crystalline Solids. VOL 332(NUMBER 1-3), 271-278
  • LOUSTEAU, J., FURNISS, D., SEDDON, A.B., SEWELL, P. and BENSON, T.M., 2003. Flouride glass planer waveguides for active applications In: E-MRS Spring Meeting 2003.
  • TIKHOMIROV, V. K., SEDDON, A. B., FURNISS, D. and FERRARI, M., 2003. Intrinsic defects and glass stability in Er3+ doped TeO2 glasses and the implications for Er3+-doped tellurite fiber amplifiers Journal of Non-Crystalline Solids. VOL 326-327(NUMBER), 296-300
  • SHEPHARD, J.D., KANGLEY, R.I., HAND, R.J., FURNISS, D. and SEDDON, A.B., 2003. Analysis of oxide content in gallium lanthanum sulphide (GLS) glasses by infrared absorption spectroscopy Physics and Chemistry of Glasses - European Journal of Glass Science and Technology Part B. 44(4), 267-271
  • TIKHOMIROV, V. K., ASATRYAN, K., GALSTIAN, T. V., VALLEE, R. and SEDDON, A. B., 2003. Photoinduced volume changes related to photoinduced anisotropy in chalcogenide glasses Philosophical Magazine Letters. VOL 83(PART 2), 117-124
  • SEDDON,A.B., FURNISS,D., IOVU,M.S., SHUTOV,S.D., SYRBU,N.N., ANDRIESH,A.M., HERTOGEN,P. and ADRIAENSSENS,G.J., 2003. Optical absorption and visible luminescence in Ga-La-S-O glass doped with Pr3+ ions Journal of Optoelectronics and Advanced Materials. 5, 1107-1113
  • TIKHOMIROV, V. K., SEDDON, A. B., FERRARI, M., MONTAGNA, M., SANTOS, L. F. and ALMEIDA, R. M., 2003. The structure of Er^3^+-doped oxy-fluoride transparent glass-ceramics studied by Raman scattering Europhysics Letters. VOL 64(PART 4), 529-535
  • BEGGIORA, M., REANEY, I. M., SEDDON, A. B., FURNISS, D. and TIKHOMIROVA, S. A., 2003. Phase evolution in oxy-fluoride glass ceramics Journal of Non-Crystalline Solids. VOL 326-327(NUMBER), 476-483
  • MARTIN, R. J., PLATTS, L. M., SEDDON, A. B. and STILLMAN, E. C., 2003. The design and analysis of a mixture experiment on glass durability Australian and New Zealand Journal of Statistics. VOL 45(PART 1), 19-28
  • SEDDON, A. B., FURNISS, D., IOVU, M. S., SHUTOV, S. D., SYRBU, N. N., ANDRIESH, A. M. and ADRIAENSSENS, G. J., 2003. The effect of oxygen on optical absorption and emission of Pr:Ga-La-S glass JOURNAL OF NONCRYSTALLINE SOLIDS. VOL 326-327(NUMBER), 279-282
  • MCBREARTY, E. J., LEWIS, K. L., ORCHARD, D. A., MASON, P. D., MILLER, C. A., SAVAGE, S., FURNISS, D. and SEDDON, A. B., 2003. Chalcogenide glass films for the bonding of GaAs optical parametric oscillator elements [5273-39] PROCEEDINGS- SPIE THE INTERNATIONAL SOCIETY FOR OPTICAL ENGINEERING. VOL 5273, 430-439
  • IOVU, M. S., SHUTOV, S. D., ANDRIESH, A. M., KAMITSOS, E. I., VARSAMIS, C. P., FURNISS, D., SEDDON, A. B. and POPESCU, M., 2003. Spectroscopic study of As2S3 glasses doped with Dy, Sm and Mn JOURNAL OF NONCRYSTALLINE SOLIDS. VOL 326-327(NUMBER), 306-310
  • TIKHOMIROV, V. K., FURNISS, D., SEDDON, A. B., BEGGIORA, M. and REANEY, I. M., 2003. Er3^+-doped ultratransparent oxyfluoride glass-ceramics for application in the 1.54mum telecommunication window [5118-100] PROCEEDINGS- SPIE THE INTERNATIONAL SOCIETY FOR OPTICAL ENGINEERING. ISSU 5118, 82-92
  • NOBLE, K., SEDDON, A. B., TURNER, M. L., CHEVALIER, P. and OU, D. L., 2003. Porous Siloxane-Silica Hybrid Materials by Sol-Gel Processing Journal of Sol-Gel Science and Technology. VOL 26(NUMBER 1/3), 419-423
  • TIKHOMIROV, V. K., SEDDON, A. B., ASATRYAN, K., GALSTIAN, T. V. and VALLEE, R., 2003. The role of van der Waals bonding in photosensitivity of chalcogenide glasses JOURNAL OF NONCRYSTALLINE SOLIDS. VOL 326-327(NUMBER), 205-208
  • SEDDON, A. B., FURNISS, D., IOVU, M. S., SHUTOV, S. D., SYRBU, N. N., ANDRIESH, A. M., HERTOGEN, P. and ADRIAENSSENS, G. J., 2003. O.1 PHOTOINDUCED EFFECTS AND LIGHT EMMISSION IN Ga-La-S:Pr^3^+ GLASS INTERNATIONAL SEMICONDUCTOR CONFERENCE. 26TH(VOL 1), 139-142
  • CONTI, G. N., TIKHOMIROV, V. K., CHEN, B., BERNESCHI, S., BRENCI, M., PELLI, S., SEDDON, A. B., BETTINELLI, M., SPEGHINI, A. and RIGHINI, G. C., 2003. Ion-exchanged planar waveguides in different ER^3^+-doped tellurite glasses [4990-20] PROCEEDINGS- SPIE THE INTERNATIONAL SOCIETY FOR OPTICAL ENGINEERING. VOL 4990, 97-102
  • SHEPHARD, J. D., KANGLEY, R. I., HAND, R. J., FURNISS, D., O'DONNELL, M., MILLER, C. A. and SEDDON, A. B., 2003. The effect of GaSe on Ga-La-S glasses JOURNAL OF NONCRYSTALLINE SOLIDS. VOL 326-327(NUMBER), 439-445
  • TIKHOMIROV, V.K., FURNISS, D., SEDDON, A.B., REANEY, I.M., BEGGIORA, M., FERRARI, M., MONTAGNA, M. and ROLLI, R., 2002. Fabrication and characterization of nanoscale,Er<sup>3+</sup>-doped,ultratransparent oxy-fluoride glass ceramics Applied Physics Letters. 81(11), 1937-1939
  • TIKHOMIROV, V. K., FURNISS, D., SEDDON, A. B., FERRARI, M. and ROLLI, R., 2002. Er3+ doped ultra-transparent oxy-fluoride glass-ceramics for application in the 1.54 mm telecommunication window Journal of Materials Science Letters. VOL 21(NUMBER 4), 293-295
  • LOUSTEAU, J., FURNISS, D., SEWELL, P., BENSON, T.M. and SEDDON, A.B., 2002. Photolithography and wet etching of fluorozirconate glasses for ridge waveguides In: Proc. Postgraduate Research in Electronics, Photonics and Related Fields, PREP 99.
  • IOVU, M.S., SHUTOV, S.D., ANDRIESH, A.M., KAMITSOS, E.I., VARSAMIS, C.P., SEDDON, A.B., FURNISS, D. and POPESCU, M., 2002. Spectroscopic studies of bulk As2S3 glasses and amorphous films doped with Dy, Sm and Mn In: Proceedings of SPIE - The International Society for Optical Engineering. 97-105
  • IOVU, M. S., SHUTOV, S. D., ANDRIESH, A. M., KAMITSOS, E. I., VARSAMIS, C. P. E., SEDDON, A. B., FURNISS, D. and POPESCU, M., 2002. AM4 SPECTROSCOPICAL STUDY OF As~2S~3 GLASSES DOPED WITH Dy, Sm AND Mn INTERNATIONAL SEMICONDUCTOR CONFERENCE. 25TH(VOL 2), 283-286
  • KUKKONEN, L.L., REANEY, I.M., FURNISS, D. and SEDDON, A.B., 2001. Nucleation and crystallisation behaviour of transparent, erbium III doped, oxyfluoride glass ceramics for active photonic devices Physics and Chemistry of Glasses: European Journal of Glass Science and Technology Part B. 42(3), 265-274
  • KUKKONEN, L. L., REANEY, I. M., FURNISS, D., PELLATT, M. G. and SEDDON, A. B., 2001. Nucleation and crystallisation of transparent, erbium III-doped, oxyfluoride glass-ceramics Journal of Non-Crystalline Solids. VOL 290(NUMBER 1), 25-31
  • IOVU, M. S., SHUTOV, S. D., ANDRIESH, A. M., KAMITSOS, E. I., VARSAMIS, C. P. E., FURNISS, D., SEDDON, A. B. and POPESCU, M., 2001. Spectroscopic studies of bulk As~2S~3 glasses and amorphous films doped with Dy, Sm and Mn JOURNAL OF OPTOELECTRONICS AND ADVANCED MATERIALS. VOL 3(PART 2), 443-454
  • HAND, R. J., KANGLEY, R. I., SHEPHARD, J. D., FURNISS, D. and SEDDON, A. B., 2001. GaLaS optical fibers: thermo-optical properties and fiber drawing [4215-04] PROCEEDINGS- SPIE THE INTERNATIONAL SOCIETY FOR OPTICAL ENGINEERING. ISSU 4215, 36-43
  • SHEPHARD, J. D., FURNISS, D., HOUSTON, P. A. and SEDDON, A. B., 2001. Fabrication of mid-infrared planar waveguides from compatible fluorozirconate glass pairs, via hot spin-casting JOURNAL OF NONCRYSTALLINE SOLIDS. VOL 284(NO 1-3), 160-167
  • FAN, Q., MCQUILLIN, B. and SEDDON, A. B., 2001. A blue-green light sensitive photodiode made from sol-gel processed material and a polymer Journal of Materials Science Letters. VOL 20(PART 12), 1077-1080
  • ANDRIESH, A. M., IOVU, M. S., SHUTOV, S. D., SEDDON, A. B., FURNISS, D. and POPESCU, M. A., 2001. Optical properties of As~2S~3 and As~2Se~3 glasses doped with Dy, Sm, and Mn (Invited Paper) [4430-51] PROCEEDINGS- SPIE THE INTERNATIONAL SOCIETY FOR OPTICAL ENGINEERING. ISSU 4430, 376-387
  • FAN, Q., MCQUILLIN, B., BRADLEY, D. D., WHITELEGG, S. and SEDDON, A. B., 2001. A solid state solar cell using sol-gel processed material and a polymer Chemical Physics Letters. VOL 347(NUMBER 4-6), 325-330
  • MORGAN, S. P., REANEY, I. M., BUCKLEY, R., FURNISS, D. and SEDDON, A. B., 2000. Crystallization in 70Ga~2S~3.30La~2S~3 (mol%) Glasses as a Function of Oxide/Hydroxide Concentration American Ceramic Society. Journal. VOL 83(PART 3), 617-622
  • TADANAGA, K., ELLIS, B. and SEDDON, A. B., 2000. Near- and Mid-Infrared Spectroscopy of Sol-Gel Derived Ormosil Films for Photonics from Tetramethoxysilane and Trimethoxysilylpropylmethacrylate JOURNAL OF SOLGEL SCIENCE AND TECHNOLOGY. VOL 19(PART 1/3), 687-690
  • TIKHOMIROV, V. K., PERAKIS, A., SARANTOPOULOU, E. and SEDDON, A. B., 2000. On the Origin of the Boson Peak in the Raman Spectra of Glasses ASIAN JOURNAL OF PHYSICS. VOL 9(PART 3), 551-560
  • SEDDON, A.B., 2000. Nucleation and Crystallisation of Transparent, Erbium III Doped, Oxyfluoride Glass Ceramics In: 12th International Symp on Non-Oxide Glasses and Advanced Materials.
  • FAN, Q., MCQUILLIN, B., RAY, A. K., TURNER, M. L. and SEDDON, A. B., 2000. High density, non-porous anatase titania thin films for device applications JOURNAL OF PHYSICS -LONDON- D APPLIED PHYSICS. VOL 33(PART 21), 2683-2686
  • NOBLE, K., SEDDON, A. B., TURNER, M. L., CHEVALIER, P. and MACKINNON, I. A., 2000. Polysiloxane-Modified Mesoporous Materials JOURNAL OF SOLGEL SCIENCE AND TECHNOLOGY. VOL 19(PART 1/3), 807-810
  • TADANAGA, K., ELLIS, B. and SEDDON, A. B., 2000. Structural changes during thermally induced polymerization of ormosil films from trimethoxysilylpropylmethacrylate and zirconium-n-propoxide modified with methacrylic acid [3943-30] PROCEEDINGS- SPIE THE INTERNATIONAL SOCIETY FOR OPTICAL ENGINEERING. VOL 3943, 228-235
  • SEDDON, A.B., 2000. Fabrication of Mid-Infrared Planar Waveguides from Compatible Flourozirconate Glass Pairs, via Hot Spin Casting In: 12th International Symp on Non-Oxide Glasses and Advanced Materials.
  • FURNISS, D. and SEDDON, A.B., 1999. Towards monomode proportioned fibreoptic preforms by extrusion JOURNAL OF NONCRYSTALLINE SOLIDS. VOL 256-257(NUMBER 1-2), 232-236
  • KUKKONEN, L., FURNISS, D., REANEY, I. M. and SEDDON, A. B., 1999. Transparent, rare earth doped, oxyfluoride glass-ceramics for photonics TOPICAL ISSUES IN GLASS. VOL 3, 87
  • LI, R., FURNISS, D., BAGSHAW, H. and SEDDON, A. B., 1999. The decisive role of oxide content in the formation and crystallization of gallium-lanthanum-sulfide glasses Journal of Materials Research. VOL 14(NUMBER 6), 2621-2627
  • SEDDON, A., 1999. Glasses in optoelectronics TOPICAL ISSUES IN GLASS. VOL 3, 20-25
  • SEDDON, A. B., 1999. Sol-gel synthesis of glasses for photonics: a review of current research and future prospects CERAMICS SILIKATY. VOL 43(PART 4), 187-192
  • SEDDON, A.B., 1999. Investigation of the Extrusion Methods for the Manufacturing of Optical Fibre Preforms In: Photons, Glasses and Coatings.
  • TIKHOMIROV, V.K., JHA, A., PERAKIS, A., SARANTOPOULOU, E., NAFTALY, M., KRASTEVA, V., LI, R. and SEDDON, A.B., 1999. An interpretation of the Boson peak in rare-earth ion doped glasses JOURNAL OF NONCRYSTALLINE SOLIDS. VOL 256-257(NUMBER 1-2), 89-94
  • REANEY, I.M., MORGAN, S.P., LI, R. and SEDDON, A.B., 1999. Transmission electron microscopy studies of 70Ga"2S"3-30La"2S"3 glasses JOURNAL OF NONCRYSTALLINE SOLIDS. VOL 256-257(NUMBER 1-2), 149-153
  • FURNISS, D. and SEDDON, A. B., 1999. Investigation of the extrusion method for manufacture of optical fibre preforms TOPICAL ISSUES IN GLASS. VOL 3, 80-86
  • SEDDON, A. B., 1999. SOL-GEL SYNTHESIS OF GLASSES FOR PHOTONICS: A REVIEW OF CURRENT RESEARCH AND FUTURE PROSPECTS PROCEEDINGS OF THE ESG CONFERENCE. 5TH, 174-175
  • SEDDON, A. B., FURNISS, D. and SIMS, D. J., 1999. Gallium-lanthanum-sulphide glasses: extrusion of fiber optic preforms and relevant physical properties [3849-20] PROCEEDINGS- SPIE THE INTERNATIONAL SOCIETY FOR OPTICAL ENGINEERING. ISSU 3849, 160-168
  • MALEK, M. Z. A. and SEDDON, A. B., 1999. Photochromic materials using sol-gel processing TOPICAL ISSUES IN GLASS. VOL 3, 120
  • LI, R. and SEDDON, A.B., 1999. Gallium-lanthanum-sulphide glasses: a review of recent crystallisation studies JOURNAL OF NONCRYSTALLINE SOLIDS. VOL 256-257(NUMBER 1-2), 17-24
  • OU, D. L. and SEDDON, A. B., 1997. Near- and mid-infrared spectroscopy of sol-gel derived ormosils: vinyl and phenyl silicates Journal of Non-Crystalline Solids. VOL 210(NUMBER 2/3), 187-203
  • SEDDON, A. B., 1997. Chalcohalides: glass-forming systems and progress in application of percolation theory Journal of Non-Crystalline Solids. VOL 213/214(NUMBER CUM), 22-29
  • SEDDON, A.B., 1997. Cadmium Selenide Quantum Dot Doping of Inorganic-Organic Hybrid Materials Derived by Sol-Gel Processing In: SPIE, Sol-Gel Optics IV.

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