Faculty Of Science

  • United Kingdom

Research Output 1971 2019

Filter
Conference article
2018

Two-stage laser-driven plasma acceleration with external injection for EuPRAXIA

Svystun, E. N., Assmann, R. W., Dorda, U., Ferran Pousa, A., Heinemann, T., Marchetti, B., Martinez de la Ossa, A., Walker, P. A., Weikum, M. K. & Zhu, J., 5 Oct 2018, In : Journal of Physics: Conference Series. 1067, 4, 6 p., 042011

Research output: Contribution to journalConference article

Open Access
File
plasma acceleration
accelerators
injection
electron beams
lasers
2006
7 Citations

Depth profiling of ion-implanted AlInN using time-of-flight secondary ion mass spectrometry and cathodoluminescence

Martin, R. W., Rading, D., Kersting, R., Tallarek, E., Nogales, E., Amabile, D., Wang, K., Katchkanov, V., Trager-Cowan, C., O'Donnell, K. P., Watson, I. M., Matias, V., Vantomme, A., Lorenz, K. & Alves, E., 12 Jun 2006, In : Physica Status Solidi (C) Current Topics in Solid State Physics. 3, 6, p. 1927-1930 4 p.

Research output: Contribution to journalConference article

cathodoluminescence
secondary ion mass spectrometry
ions
electron energy
luminescence
1 Citations

Lead sulfide quantum dots for mode-locking and Q-switching of near IR lasers

Malyarevich, A. M., Savitski, V. G., Gaponenko, M. S., Yumashev, K. V., Lagatsky, A. A., Sibbett, W., Lipovskii, A. A., Raaben, H. & Zhilin, A. A., 31 Mar 2006, In : Proceedings of SPIE - The International Society for Optical Engineering. 6054, 6 p., 60540Q

Research output: Contribution to journalConference article

Q-switching
Q switching
lead sulfides
Mode-locking
Laser mode locking
2005

Dependence of the e2 and A1(LO) modes on InN fraction in InGaN epilayers

Hernández, S., Cuscó, R., Artús, L., O'Donnell, K. P., Martin, R. W., Watson, I. M., Nanishi, Y., Kurouchi, M. & Van Der Stricht, W., 25 Aug 2005, In : Materials Research Society Symposium Proceedings. 831, p. 179-184 6 p., E3.22

Research output: Contribution to journalConference article

Epilayers
Phonons
Chemical analysis
Linewidth
Cations
1 Citations

PbS-doped glass saturable absorbers for mode-locked and Q-switched near-IR lasers

Malyarevich, A. M., Savitski, V. G., Gaponenko, M. S., Yumashev, K. V., Lagatsky, A. A., Sibbett, W., Lipovskii, A. A., Raaben, H. & Zhilin, A. A., 1 Jan 2005, In : OSA Trends in Optics and Photonics Series. 98, p. 102-107 6 p.

Research output: Contribution to journalConference article

Q switching
Saturable absorbers
Laser mode locking
Laser modes
Semiconductor quantum dots
5 Citations

Site multiplicity of rare earth ions in III-nitrides

O'Donnell, K. P., Katchkanov, V., Wang, K., Martin, R. W., Edwards, P. R., Hourahine, B., Nogales, E., Mosselmans, J. F. W. & De Vries, B., 25 Aug 2005, In : Materials Research Society Symposium Proceedings. 831, p. 527-536 10 p., E9.6

Research output: Contribution to journalConference article

Nitrides
Rare earths
nitrides
rare earth elements
Ions

X-ray excited optical luminescence studies of InGaN and rare-earth doped GaN epilayers

Katchkanov, V., Mosselmans, J. F. W., O'Donnell, K. P., Poolton, N. R. J. & Hernandez, S., 25 Aug 2005, In : Materials Research Society Symposium Proceedings. 831, p. 209-213 5 p., E3.31

Research output: Contribution to journalConference article

Epilayers
X ray absorption
Rare earths
Luminescence
rare earth elements
2004
9 Citations

Extended X-ray absorption fine structure studies of thulium doped GaN epilayers

Katchkanov, V., Mosselmans, J. F. W., Dalmasso, S., O'Donnell, K. P., Hernandez, S., Wang, K., Martin, R. W., Briot, O., Rousseau, N., Halambalakis, G., Lorenz, K. & Alves, E., 1 Oct 2004, In : Superlattices and Microstructures. 36, 4-6, p. 729-736 8 p.

Research output: Contribution to journalConference article

Thulium
thulium
Epilayers
X ray absorption
fine structure

Intensity dependent bleaching relaxation in PbS quantum dots

Savitski, V. G., Malyarevich, A. M., Yumashev, K. V., Raaben, E. & Zhilin, A. A., 1 Jan 2004, In : OSA Trends in Optics and Photonics Series. 97, p. 619-620 2 p.

Research output: Contribution to journalConference article

Bleaching
Semiconductor quantum dots
Pumps
1 Citations

PbSe quantum-dot-doped phosphate glasses as material for saturable absorbers for 1-3 μm spectral region

Kolobkova, E. V., Lipovskii, A. A., Melehin, V. G., Petrikov, V. D., Malyarevich, A. M. & Savitski, V. G., 16 Aug 2004, In : Proceedings of SPIE - The International Society for Optical Engineering. 5449, p. 184-187 4 p.

Research output: Contribution to journalConference article

Nonlinear Absorption
Saturable Absorber
Saturable absorbers
Absorption Spectra
Quantum Dots

Simultaneous composition and cathodoluminescence spectral mapping of III-nitride structures

Edwards, P. R., Martin, R. W., O'Donnell, K. P. & Watson, I. M., 17 Nov 2004, 6, p. 293-296 4 p.

Research output: Contribution to journalConference article

Cathodoluminescence
Nitrides
Indium
Gallium nitride
Chemical analysis
2003
4 Citations

2D assemblies of silicon nanocrystallites prepared by sol-gel method from triethoxysilane

Rouquette, J., Pauthe, M., Ramonda, M., Taliercio, T., Gil, B. & O'Donnell, K. P., 25 Jul 2003, In : Materials Research Society Symposium - Proceedings. 737, p. 461-467 7 p.

Research output: Contribution to journalConference article

Nanocrystallites
Silica Gel
Silica gel
silica gel
Silicon
2 Citations

Anomalous composition dependence of optical energies of MBE-grown InGaN

Fernandez-Torrente, I., Amabile, D., Martin, R. W., O'Donnell, K. P., Mosselmans, J. F. W., Calleja, E. & Naranjo, F. B., 1 Dec 2003, In : Materials Research Society Symposium - Proceedings. 798, p. 673-676 4 p.

Research output: Contribution to journalConference article

Metallorganic vapor phase epitaxy
Molecular beam epitaxy
Epilayers
Energy gap
Chemical analysis
1 Citations

Electron micro-probe analysis and cathodoluminescence spectroscopy of rare earth - Implanted GaN

Dalmasso, S., Martin, R. W., Edwards, P. R., Katchkanov, V., O'Donnell, K. P., Lorenz, K., Alves, E., Wahl, U., Pipeleers, B., Matias, V., Vantomme, A., Nakanishi, Y., Wakahara, A. & Yoshida, A., 1 Dec 2003, In : Materials Research Society Symposium - Proceedings. 798, p. 429-434 6 p.

Research output: Contribution to journalConference article

Cathodoluminescence
Electron probe microanalysis
cathodoluminescence
Rare earths
rare earth elements

Extended X-ray absorption fine structure studies of GaN epilayers doped in situ with Er and Eu during molecular beam epitaxy

Katcnkanov, V., Mosselmans, J. F. W., Dalmasso, S., O'Donnell, K. P., Martin, R. W., Briot, O., Rousseau, N. & Halambalakis, G., 1 Dec 2003, In : Materials Research Society Symposium - Proceedings. 798, p. 435-440 6 p.

Research output: Contribution to journalConference article

Epilayers
X ray absorption
Molecular beam epitaxy
molecular beam epitaxy
fine structure
5 Citations

Hexagonal ZnCdS epilayers and CdSSe/ZnCdS QW structures on CdS(0001) and ZnCdS(0001) substrates grown by MOVPE

Kuznetsov, P. I., Jitov, V. A., Yakushcheva, G. G., Shchamkhalova, B. S., Zakharov, L. Y., Kozlovsky, V. I., Skasyrsky, Y. K., O'Donnell, K. P. & Trager-Cowan, C., 1 Apr 2003, In : Physica E: Low-dimensional Systems and Nanostructures. 17, 1-4, p. 516-517 2 p.

Research output: Contribution to journalConference article

Metallorganic vapor phase epitaxy
Epilayers
Semiconductor quantum wells
quantum wells
Substrates

High temperature implantation of Tm in GaN

Lorenz, K., Wahl, U., Alves, E., Dalmasso, S., Martin, R. W. & O'Donnell, K. P., 1 Dec 2003, In : Materials Research Society Symposium - Proceedings. 798, p. 447-452 6 p.

Research output: Contribution to journalConference article

Ion implantation
implantation
Rutherford backscattering spectroscopy
Annealing
Ions
13 Citations

Implantation and annealing studies of Tm-implanted GaN

Lorenz, K., Alves, E., Wahl, U., Monteiro, T., Dalmasso, S., Martin, R. W., O'Donnell, K. P. & Vianden, R., 15 Dec 2003, In : Materials Science and Engineering B: Solid-State Materials for Advanced Technology. 105, 1-3, p. 97-100 4 p.

Research output: Contribution to journalConference article

implantation
Annealing
Ions
annealing
ions
1 Citations

Occurrence of 'accidental' InN quantum dots in indium gallium nitride/gallium nitride heterostructures

O'Donnell, K. P., Martin, R. W., White, M. E., Pereira, S., Mosselmans, J. F. W., Tobin, M. J., Grandjean, N. & Damilano, B., 25 Jul 2003, In : Materials Research Society Symposium - Proceedings. 737, p. 13-17 5 p.

Research output: Contribution to journalConference article

Gallium nitride
Indium
gallium nitrides
Semiconductor quantum dots
indium

PbS-doped phosphate glasses saturable absorbers for 1.3-μm neodymium lasers

Lipovskii, A. A., Savitski, V. G., Malyarevich, A. M., Yumashev, K. V. & Sinclair, B. D., 1 Dec 2003, In : Proceedings of SPIE - The International Society for Optical Engineering. 4829, p. 113-114 2 p.

Research output: Contribution to journalConference article

Neodymium lasers
Saturable Absorber
neodymium lasers
Saturable absorbers
Quantum Dots
1 Citations

Processing of rare earth doped GaN with ion beams

Lorenz, K., Wahl, U., Alves, E., Wojtowicz, T., Ruterana, P., Dalmasso, S., Martin, R. W., O'Donnell, K. P., Ruffenach, S., Briot, O. & Vantomme, A., 1 Dec 2003, In : Materials Research Society Symposium - Proceedings. 798, p. 453-458 6 p.

Research output: Contribution to journalConference article

thulium
Thulium
Ion beams
Rare earths
implantation
4 Citations

The microstructure of Er MBE doped GaN

Wojtowicz, T., Ruterana, P., Rousseau, N., Briot, O., Dalmasso, S., Martin, R. W. & O'Donnell, K. P., 15 Dec 2003, In : Materials Science and Engineering B: Solid-State Materials for Advanced Technology. 105, 1-3, p. 114-117 4 p.

Research output: Contribution to journalConference article

Molecular beam epitaxy
Rare earths
molecular beam epitaxy
rare earth elements
microstructure
2002
4 Citations

Degradation of structural and optical properties of InGaN/GaN multiple quantum wells with increasing number of wells

Pereira, S., Correia, M. R., Pereira, E., O'Donnell, K. P., Alves, E., Barradas, N. P., Sequeira, A. D., Franco, N., Watson, I. M. & Liu, C., 1 Dec 2002, 0, 1, p. 302-306 5 p.

Research output: Contribution to journalConference article

Semiconductor quantum wells
Structural properties
Optical properties
quantum wells
degradation

Diode-pumped 1.3-μm Nd:KGd(WO4)2 and Nd:YVO4 lasers passively Q-switched with PbS- and PbSe-doped glasses

Malyarevich, A. M., Savitski, V. G., Posnov, N. N., Yumashev, K. V., Sinclair, B. D. & Lipovskii, A. A., 1 Dec 2002, In : Proceedings of SPIE - The International Society for Optical Engineering. 5137, p. 60-65 6 p.

Research output: Contribution to journalConference article

Diode-pumped
Q switched lasers
Diodes
diodes
Laser
3 Citations

Electron microprobe and photoluminescence analysis of europium-doped gallium nitride light emitters

Martin, R. W., Dalmasso, S., O'Donnell, K. P., Nakanishi, Y., Wakahara, A. & Yoshida, A., 1 Dec 2002, In : Materials Research Society Symposium - Proceedings. 743, p. 411-416 6 p.

Research output: Contribution to journalConference article

Europium
Gallium nitride
x ray analysis
gallium nitrides
europium

Passive mode-locking and Q-switching of 1.3 μm neodymium lasers with PbS-doped glass

Malyarevich, A. M., Savitski, V. G., Yumashev, K. V., Sinclair, B. D. & Lipovskii, A. A., 1 Dec 2002, In : Conference Proceedings - Lasers and Electro-Optics Society Annual Meeting-LEOS. 2, p. 637-638 2 p.

Research output: Contribution to journalConference article

Passive mode locking
Neodymium lasers
Q switching
Laser mode locking
Solid state lasers
1 Citations

Ultrafast exciton recombination in PbS quantum dots

Savitski, V. G., Posnov, N. N., Malyarevich, A. M., Yumashev, K. V. & Lipovskii, A. A., 1 Dec 2002, In : Proceedings of SPIE - The International Society for Optical Engineering. 5036, p. 372-375 4 p.

Research output: Contribution to journalConference article

Exciton
bleaching
Bleaching
Quantum Dots
Recombination
2001
21 Citations

Mystery wrapped in an enigma: optical properties of InGaN alloys

O'Donnell, K. P., 1 Jan 2001, In : Physica Status Solidi (A) Applied Research. 183, 1, p. 117-120 4 p.

Research output: Contribution to journalConference article

Luminescence
Optical properties
luminescence
optical properties
Chemical analysis
3 Citations

Passive Q-switch operation of PbSe-doped glass at 2.1 μm

Malyarevich, A. M., Savitski, V. G., Prokoshin, P. V., Yumashev, K. V. & Lipovskii, A. A., 1 Jan 2001, In : Proceedings of SPIE - The International Society for Optical Engineering. 4350, p. 32-35 4 p.

Research output: Contribution to journalConference article

Phosphate
Switch
phosphates
Phosphates
switches
2000

Comparative study of structural properties and photoluminescence in InGaN layers with a high In content

Vantomme, A., Wu, M. F., Hogg, S., Langouche, G., Jacobs, K., Moerman, I., White, M. E., O'Donnell, K. P., Nistor, L., Van Landuyt, J. & Bender, H., 1 Jan 2000, In : Materials Research Society Symposium - Proceedings. 595, 6 p.

Research output: Contribution to journalConference article

Rutherford backscattering spectroscopy
Spectrometry
Structural properties
Photoluminescence
Indium
11 Citations

Optical spectroscopy and composition of InGaN

O'Donnell, K. P., Martin, R. W., White, M. E., Jacobs, K., Van der Stricht, W., Demeester, P., Vantomme, A., Wu, M. F. & Mosselmans, I. F. W., 1 Jan 2000, In : Materials Research Society Symposium - Proceedings. 595, 6 p.

Research output: Contribution to journalConference article

Indium
indium
Chemical analysis
spectroscopy
Photoluminescence
1999
7 Citations

Emission spectrum of pulsed laser deposited GaN and its powder precursor

Middleton, P. G., O'Donnell, K. P., Trager-Cowan, C., Cole, D., Cazzanelli, M. & Lunney, J., 6 May 1999, In : Materials Science and Engineering B: Solid-State Materials for Advanced Technology. 59, 1-3, p. 133-136 4 p.

Research output: Contribution to journalConference article

Pulsed lasers
Powders
pulsed lasers
emission spectra
Pulsed laser deposition
9 Citations

GaN epilayers on misoriented substrates

Trager-Cowan, C., McArthur, S., Middleton, P. G., O'Donnell, K. P., Zubia, D. & Hersee, S. D., 6 May 1999, In : Materials Science and Engineering B: Solid-State Materials for Advanced Technology. 59, 1-3, p. 235-238 4 p.

Research output: Contribution to journalConference article

Epilayers
Substrates
cathodoluminescence
Cathodoluminescence
Excitons
7 Citations

Luminescent properties of GaN thin films prepared by pulsed laser deposition

Cazzanelli, M., Vinegoni, C., Cole, D., Lunney, J. G., Middleton, P. G., Trager-Cowan, C., O'Donnell, K. P. & Pavesi, L., 6 May 1999, In : Materials Science and Engineering B: Solid-State Materials for Advanced Technology. 59, 1-3, p. 137-140 4 p.

Research output: Contribution to journalConference article

Pulsed laser deposition
pulsed laser deposition
luminescence
Thin films
Luminescence
9 Citations

Spectroscopy and microscopy of localised and delocalised excitons in InGaN-based light emitting diodes and epilayers

O'Donnell, K. P., Martin, R. W., Middleton, P. G., Bayliss, S. C., Fletcher, I., Van Der Stricht, W., Demeester, P. & Moerman, I., 6 May 1999, In : Materials Science and Engineering B: Solid-State Materials for Advanced Technology. 59, 1-3, p. 288-291 4 p.

Research output: Contribution to journalConference article

Cathodoluminescence
Epilayers
Electroluminescence
Photocurrents
Excitons
1997
8 Citations

Hexagonal growth hillocks in GaN epilayers

Middleton, P. O., Trager-Cowan, C., Mohammed, A., O'Donnell, K. P., Van Der Stricht, W., Moerman, I. & Demeester, P., 1 Jan 1997, In : Materials Research Society Symposium - Proceedings. 449, p. 471-476 6 p.

Research output: Contribution to journalConference article

Epilayers
Luminescence
Gallium nitride
Defects
Metallorganic vapor phase epitaxy

Probing the indium mole fraction in an InGaN epilayer by depth resolved cathodoluminescence

Trager-Cowan, C., Middleton, P. G., Mohammed, A., O'Donnell, K. P., Van der Stricht, W., Moerman, I. & Demeester, P., 1 Dec 1997, In : Materials Research Society Symposium - Proceedings. 482, p. 715-718 4 p.

Research output: Contribution to journalConference article

Indium
Cathodoluminescence
Epilayers
cathodoluminescence
indium

Three-parameter optical studies in Scottish coastal waters

McKee, D., Cunningham, A. & Jones, K., 1 Dec 1997, In : Proceedings of SPIE - The International Society for Optical Engineering. 2963, p. 198-203 6 p.

Research output: Contribution to journalConference article

coastal water
Optical instruments
Water
Xenon
Phytoplankton
1996
15 Citations

Effect of a GaN nucleation layer on GaN film properties grown by metalorganic chemical vapor deposition

van der Stricht, W., Moerman, I., Demeester, P., Crawley, J. A., Thrush, E. J., Middleton, P. G., Cowan, C. T. & O'Donnell, K. P., 1 Jan 1996, In : Materials Research Society Symposium - Proceedings. 395, p. 231-236 6 p.

Research output: Contribution to journalConference article

Metallorganic chemical vapor deposition
metalorganic chemical vapor deposition
Nucleation
nucleation
Aluminum Oxide
26 Citations

Growth and optical properties of GaN grown by MBE on novel lattice-matched oxide substrates

Nicholls, J. F. H., Henderson, B., Trager-Cowan, C., Middleton, P. G., O'Donnell, K. P., Cheng, T. S., Foxon, C. T. & Chai, B. H. T., 1 Jan 1996, In : Materials Research Society Symposium - Proceedings. 395, p. 535-539 5 p.

Research output: Contribution to journalConference article

Molecular beam epitaxy
Crystal lattices
Oxides
Optical properties
Semiconductor materials
1995

3-D mapping of strain and defects in a ZnSe epilayer using a variable energy electron beam

Trager-Cowan, C., Paterson, A. M., Martin, R. W., O'Donnell, K. P., Mullins, J. T., Horsburgh, G., Prior, K. A. & Cavenett, B. C., 1 Jan 1995, In : Materials Science Forum. 182-184, p. 163-166 4 p.

Research output: Contribution to journalConference article

Epilayers
Electron beams
electron beams
Impurities
impurities

Dynamics of band filling in localized states

Breitkopf, T., Petri, W., Reznitsky, A., Kalt, H., Klingshirn, C. & O'Donnell, K., 1 Jan 1995, In : Materials Science Forum. 182-184, p. 275-278 4 p.

Research output: Contribution to journalConference article

Stimulated emission
Ternary alloys
ternary alloys
bleaching
Bleaching

Microspectroscopic studies of CdSe single quantum well lasers

Bagnall, D. M., Wright, P. J., Cockayne, B. & O'Donnell, K. P., 1 Jan 1995, In : Materials Science Forum. 182-184, p. 239-242 4 p.

Research output: Contribution to journalConference article

Quantum well lasers
quantum well lasers
Lasers
lasers
Metallorganic vapor phase epitaxy