Publications
Update April 2012: Please note that the group website is out of date, and is due to be updated over the next few weeks.
2009
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Ultrafast laser inscribed Yb:KGd(WO4)2 and Yb:KY(WO4)2 channel waveguide lasers
F.M. Bain, A.A. Lagatsky, R.R. Thomson, N.D. Psaila, N.V. Kuleshov, A.K. Kar, W. Sibbett, and C.T.A. Brown
Optics Express. 17, 22417 (2009)
Abstract | Full
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Ultrafast laser inscription: an enabling technology for astrophotonics
R. R. Thomson, A. K. Kar, and J. Allington-Smith
Optics Express. 17 1963 (2009)
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Experimental demonstration of spectral broadening in an all-silica Bragg fiber
H. T. Bookey, S. Dasgupta, N. Bezawada, B. P. Pal, A. Sysoliatin, J. E. McCarthy, M. Salganskii, V. Khopin, A. K. Kar
Optics Express. 17 (19), 17130, (2009).
Abstract | Full text
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Generation of supercontinuum and its theoretical study in three-ring silica microstructured optical fibers
D. Ghosh, S. Roy, M. Pal, A. Pal,1 S. K. Bhadra, J. McCarthy, H. Bookey, and A. Kar
Applied Optics, 48 (31), G12-G20 (2009).
Abstract | Full text
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Fiber Bragg gratings inscribed using 800nm femtosecond laser and a phase mask in single and multi-core mid-IR glass fibers
R. Suo, J. Lousteau, H. Li, X. Jiang, K. Zhou, L. Zhang, W. N. MacPherson, H. T. Bookey, J. S. Barton, A. K. Kar, A. Jha, and I. Bennion
Optics Express. 17 (9), 7540, (2009).
Abstract | Full text
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Anisotropy in the nonlinear absorption of elongated silver nanoparticles in silica, probed by femtosecond pulses
R. Rangel-Rojoa, J. McCarthy, H.T. Bookey, A.K. Kar, L. Rodriguez-Fernandez, J.C. Cheang-Wong, A. Crespo-Sosa, A. Lopez-Suarez, A. Oliver, V. Rodriguez-Iglesias and H.G. Silva-Pereyra
Optics Communications 282 (9), 1909, (2009).
Abstract | Full text
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2008
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Ultrafast laser ablation of PMMA and intraocular lenses
A. A. Serafetinides, M. Makropoulou, E. Fabrikesi, E. Spyratou, C. Bacharis, R.R. Thomson, A.K. Kar
Applied Physics A. 93, 111 (2008)
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Shaping ultrafast laser inscribed optical waveguides using a deformable mirror
R. R. Thomson, A. S. Bockelt, E. Ramsay, S. Beecher, A. H. Greenaway, A. K. Kar, and D. T. Reid
Optics Express. 16 12786 (2008).
Abstract | Full
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Er:Yb-doped oxyfluoride silicate glass waveguide laser fabricated using
ultrafast laser inscription
N D Psaila, R R Thomson, H T Bookey, N Chiodo, S Shen, R Osellame, G
Cerullo, A Jha, and A K Kar
Photon. Tech. Lett. 20 126 (2008).
Abstract
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2007
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Exciton-photon coupling in a ZnSe-based microcavity fabricated using epitaxial liftoff
A Curran, J K Morrod, K A Prior, A K Kar and R J Warburton
Semiconductor Science and Technology 22 1189 (2007)
Abstract
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text [pdf 365KB]
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Multiple rare earth emissions in a multicore tellurite fiber with a single pump wavelength
H. T. Bookey, J. Lousteau, A. Jha, N. Gayraud, R. R. Thomson, N. D. Psaila, H. Li, W. N. MacPherson, J. S. Barton and A. K. Kar
Optics Express 15 17554
Abstract
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text [pdf 307KB]
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Frequency-doubling in femtosecond
laser inscribed periodically-poled potassium titanyl phosphate
waveguides
S. Campbell, R. R. Thomson, D. P. Hand, A. K. Kar, D. T. Reid, C. Canalias, V. Pasiskevicius, and F. Laurell
Optics Express 15
17146 (2007)
Abstract
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text [pdf 315KB]
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Supercontinuum
generation in an ultrafast laser inscribed chalcogenide glass waveguide
Nicholas D. Psaila, Robert R. Thomson, Henry T. Bookey, Shaoxiong Shen,
Nicola Chiodo, Roberto Osellame, Giulio Cerullo, Animesh Jha and Ajoy
K. Kar
Optics Express 15
15776 (2007)
Abstract
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text [pdf 305KB]
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Design and
realization of an all-fiber broadband tunable gain equalization filter
for DWDM signals
R. K. Varshney, B. Nagaraju, A. Singh, B. P. Pal, and A. K. Kar
Optics Express 15 13519 (2007)
Abstract
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text [pdf 179KB]
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Ultrafast-laser inscription of a three dimensional fan-out device for
multicore fiber coupling applications
R. R. Thomson, H. T. Bookey, N. D. Psaila, A. Fender, S. Campbell, W.
N. MacPherson, J. S. Barton, D. T. Reid, and A. K. Kar
Optics Express 15 11691 (2007)
Abstract
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text [pdf 744KB]
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Thermal
sensitivity of tellurite and germanate optical fibers
Hongxia Li, Joris Lousteau, William N. MacPherson, Xin Jiang, Henry T.
Bookey, James S. Barton, Animesh Jha, and Ajoy K. Kar
Optics Express 15 8857 (2007)
Abstract
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text [pdf 272KB]
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Femtosecond
laser writing of waveguides in periodically poled lithium niobate
preserving the nonlinear coefficient
Roberto Osellame, Mirko Lobino, Nicola Chiodo, Marco Marangoni, Giulio
Cerullo, Roberta Ramponi, Henry T. Bookey, Robert R. Thomson, Nicholas
D. Psaila, and Ajoy K. Kar
Appl. Phys. Lett 90 241107 (2007)
Abstract
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text [pdf 203KB]
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Femtosecond
Laser Inscription of Low Insertion Loss Waveguides in Z-cut Lithium
Niobate
H T Bookey, R R Thomson, N D Psaila, A K Kar, N Chiodo, R Osellame, and
G Cerullo
Photon. Tech. Lett. 19(12)
892-894 (2007)
Abstract
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text [pdf 242KB]
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Photonic
device fabrication using ultrafast laser waveguide inscription
Robert
Thomson, Henry Bookey, Nicholas Psaila, and Ajoy Kar
SPIE Newsroom
Newsroom
Site
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text (PDF)
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Er:Yb-doped oxyfluoride silicate glass waveguide amplifier fabricated
using femtosecond laser inscription
N D Psaila, R R Thomson, H T Bookey, A K Kar, N Chiodo, R Osellame, G
Cerullo, A Jha and S Shen
Appl. Phys. Lett 90 131102 (2007)
Abstract
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text [pdf 157KB]
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Er-doped
oxyfluoride silicate thin films prepared by pulsed laser deposition
A P Caricato, A Fazzi, A Jha, A Kar, G Leggieri, A Luches, M Martino, F
Romano, S Shen, M Taghizadeh, R R Thomson and T Tunno
Opt. Mater. 29(9), 1166-1170 (2007)
Abstract
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2006
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Chromium-containing Organometallic Self-organized Materials for
Nanophotonics
Larisa G. Klapshina; Ilya S. Grigoryev; Vladimir V. Semenov; William E.
Douglas; Boris A. Bushuk; Sergei B. Bushuk; Andrey Yu. Lukianov; Andrey
V. Afanasev; Robert E. Benfield; Henry T. Bookey; Ajoy K. Kar; Ildus F.
Nurgaleev; Alexey I. Korytin; Alexander M. Sergeev
IEEE Proc. Northern Optics pp 47-49 (2006)
Abstract
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text [pdf 3114KB]
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Femtosecond laser inscription of optical waveguides in Bismuth ion
doped glass
N D Psaila, R R Thomson, H T Bookey, A K Kar, N Chiodo, R Osellame, G
Cerullo, G Brown, A Jha and S Shen
Optics Express 14 10452 (2006)
Abstract |
Full text [pdf 368KB]
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Homogeneous cooperative upconversion in sol-gel fabricated erbium doped
channel waveguides
R R Thomson, H T Bookey, N Suyal and A K Kar
Appl. Phys. Lett. 89 101108 (2006)
Abstract |
Full text [pdf 68KB]
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Direct and
exchange Coulomb energies in CdSe/ZnSe quantum dots
T C M Graham, A Curran, X Tang, J K Morrod, K A Prior and R J Warburton
Phys. Stat. Sol. B 243 782 (2006)
Abstract |
Full text [pdf 256KB]
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Internal
gain from an erbium doped oxyfluoride-silicate glass waveguide
fabricated using femtosecond waveguide inscription
R R Thomson, H T Bookey, N Psaila, S Campbell, D T Reid, S Shen, A Jha
and A K Kar
Photon. Tech. Lett 18 1515 (2006)
Abstract |
Full text [pdf 240KB]
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Optical
waveguide fabrication in z-cut lithium niobate (LiNbO3)
using femtosecond pulses in the low repetition rate regime
R R Thomson, S Campbell, I J Blewett, A K Kar and D T Reid
Appl. Phys. Lett. 88 111109 (2006)
Abstract |
Full text [pdf 117KB]
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2005
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Erbium
doped waveguide fabrication via reactive pulsed laser deposition
of multicomponent erbium doped oxyfluoride-silicate glasses
R R Thomson, H T Bookey, A K Kar, M R Taghizadeh, A Klini, C Fotakis, F
Romano, A P Caricato, M Martino, S Shen and A Jha
Elec. Lett. 41 1376 (2005)
Abstract |
Full text [pdf KB]
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Optically
active erbium doped waveguides fabricated using a single sol-gel
deposition technique
R R Thomson, H T Bookey, H Ur-Rehman, S Liu, N Suyal and A K Kar
J. Lightwave Technol. 23 4249 (2005)
Abstract
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Full text [pdf 255KB]
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Active
waveguide fabrication in erbium doped oxyfluoride silicate glass using
femtosecond pulses
R R Thomson, S Campbell, I J Blewett, A K Kar, D T Reid, S Shen and A
Jha
Appl. Phys. Lett. 87 121102 (2005)
Abstract |
Full text [pdf 81KB]
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All-optical switching potentiality in Fabry–Perot devices
containing poly-DCHD
M A Camacho, A K Kar, B S Wherrett, M Bakarezos, R Rangel-Rojo, S
Yamada, H Matsuda, H Kasai and H Nakanishi
Opt. Commun. 251 376 (2005)
Abstract |
Full text [pdf 469KB]
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Characterisation
and optimisation of a dual-channel picosecond
gain-switched DFB laser system for use as a pump–probe source
H T G Bookey and A K Kar
Opt. Commun. 248 229 (2005)
Abstract |
Full text [pdf 704KB]
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Scatterings - Taming White Light FIlaments
E J Lerner, Featuring K Cook
Optics & Photonics News 16 6 (2005)
Magazine |
Full text [pdf 177KB]
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White-light filaments induced by diffraction effects
K Cook, A K Kar and R A Lamb
Opt. Express 13 2025 (2005)
Abstract |
Full text [pdf 241KB]
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Excitonic
signatures in the photoluminescence and terahertz absorption of a
GaAs/AlxGa1–xAs
multiple quantum well
I Galbraith, R Chari, S Pellegrini, P J Phillips, C J Dent, A F G van
der Meer, D G Clarke, A K Kar, G S Buller, C R Pidgeon, B N Murdin, J
Allam, and G Strasser
Phys. Rev. B 71 073302 (2005)
Abstract |
Full text [pdf 53KB]
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Epitaxial
lift-off of MBE grown II-VI heterostructures using a novel MgS release
layer
C Bradford, A Curran, A Balocchi, B C Cavenett, K A Prior, R J Warburton
J. Crystal Growth 278(1-4) 325 (2005)
Abstract |
Full text [pdf 243KB]
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Coherent
array of white-light continuum filaments produced by diffractive
microlenses
K Cook, R McGeorge, A K Kar, M R Taghizadeh and R A Lamb
Appl. Phys. Lett. 86(2) 021105 (2005)
Abstract |
Full text [pdf 322KB]
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Epitaxial
liftoff of ZnSe-based heterosTRuctures using a II-VI release layer
A Balocchi, A Curran, T C M Graham, C Bradford, K A Prior and R J
Warburton
Appl. Phys. Lett. 86(1) 011915 (2005)
Abstract |
Full text [pdf 77KB]
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1995-2004
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Spectral
dependence of the optical Stark Effect in ZnSe-based quantum wells
G Papageorgiou, R Chari, G Brown, A K Kar, C Bradford, KA Prior, H Kalt
and I Galbraith
Phys. Rev. B 69 085311 (2004)
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Phase
stability and diffraction effects in self-focused white-light filaments
in water and glass
R A Lamb, K J Cook and A K Kar
Proc. SPIE 5620 218 (2004)
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White-light supercontinuum interference of self-focused filaments in
water
K Cook, A K Kar, R A Lamb
Appl. Phys. Lett. 83 (19) 3861-3863 (2003)
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Ultrafast
pump-probe dynamics in ZnSe-based semiconductor quantum wells
H Ouerdane, G Papageorgiou, I Galbraith, A K Kar, B S Wherrett
J. Opt. Soc. Am. B 19 (9), 2022-2031 (2002)
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Tellurite
glasses for broadband amplifiers and integrated optics
Shen SX, Jha A, Liu XB, Naftaly M, Bindra K, Bookey HJ, Kar AK
J. Am. Ceram. Soc. 85 (6), 1391-1395 (2002)
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Saturation
in the near-resonance nonlinearities in a triazole-quinone derivative
Rangel-Rojo R, STRanges L, Kar AK, Mendez-Rojas MA, Watson WH
Opt. Commun. 203 (3-6), 385-391 (2002)
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Inorganic
glasses as Kerr-like media
Jha A, Liu X, Kar AK, Bookey HT
CURRENT OPINION IN SOLID STATE & MATERIALS SCIENCE, 5
(6), 475-479 (2001)
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Role of
femtosecond pulses in distinguishing third and fifth-order nonlinearity
for semiconductor-doped glasses
Bindra KS, Kar AK
Appl. Phys. Lett. 79 (23), 3761-3763 (2001)
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Nonlinear
optical properties of chalcogenide glasses: Observation of multiphoton
absorption
Bindra KS, Bookey HT, Kar AK, Wherrett BS, Liu X, Jha A
Appl. Phys. Lett. 79 (13), 1939-1941 (2001)
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Ultra-short pulsed laser ablation of polymers
Serafetinides AA, Makropoulou MI, Skordoulis CD, Kar AK
APPLIED SURFACE SCIENCE, 180 (1-2), 42-56 (2001)
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Observation of exciton-energy renormalization by the biexciton gas in
semiconductors
Brown G, Blewett IJ, Galbraith I, Kar AK, Wherrett BS
Phys. Rev. B 63 (8), 08120 (2001)
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Organic
materials for optical switching
Kar AK
POLYMERS FOR ADVANCED TECHNOLOGIES, 11 (8-12),
553-559 (2000)
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Plasma-expansion induced absorption and refraction changes in ZnSe
epilayers
E Bakarezos, I J Blewett, A K Kar, B S Wherrett
JOURNAL OF MODERN OPTICS, 47 (11), 1995-2004 (2000)
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Exciton-acoustic-phonon scattering in (Zn,Cd)Se/ZnSe quantum wells: The
influence of quantum confinement
I J Blewett, D J Bain, A Tookey, G Brown, I Galbraith, A K Kar, B
Vogele, K A Prior, B C Cavenett, B S Wherrett
PHYSICAL REVIEW B, 59 (15), 9756-9759 (1999)
Polarization-State beating
in four-wave mixing experiments on Znse Epilayers
A Tookey, D J Bain, I J Blewett, I Galbraith, A K Kar, B S Wherrett, B
Vogele, K A Prior, B C Cavenett
JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B - OPTICAL PHYSICS, 15
(1), 64-67 (1998)
Fastscan Z-scan system for
determining optical nonlinearities in semiconductors
I J Blewett, J Stokes, A Tookey, A K Kar, B S Wherrett
OPTICS AND LASER TECHNOLOGY, 29 (7), 355-358 (1997)
Read times for
bacteriorhodopsin-film optical cache memory
C H Wang, M Bacon, A K Kar, B S Wherrett, R L Baxter
JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B - OPTICAL PHYSICS, 14
(9), 2304-2309 (1997)
Comparison of the biexciton
and exciton coherent polarisation lifetimes in ZnSe/(Zn,Cd)Se multiple
quantum wells
I J Blewett, I Galbraith, A Tookey, A K Kar, B S Wherrett
SEMICONDUCTOR SCIENCE AND TECHNOLOGY, 12 (7),
820-824 (1997)
Nonlinear refractive indices
of one-dimensional metal complexes by Z-scan method
S Yamada, E VanKeuren, H Matsuda, T Kamata, TFukaya, F Mizukami, E C
Smith, A K Kar, B S Wherrett
MOLECULAR CRYSTALS AND LIQUID CRYSTALS SCIENCE AND TECHNOLOGY SECTION A
- MOLECULAR CRYSTALS AND LIQUID CRYSTALS, 294,
299-302 (1997)
Theory and analysis of
excitation-probe studies of induced-absorption three level molecular
systems
S Hughes, B S Wherrett, G Spruce
JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B - OPTICAL PHYSICS, 14
(3), 526-534 (1997)
Characterisation of long
M-state lifetime bacteriorhodopsin thin films for optical cache memory
C H Wang, M Bacon, A K Kar, B S Wherrett, R L Baxter
JAPANESE JOURNAL OF APPLIED PHYSICS PART 1 - REGULAR PAPERS SHORT NOTES
& REVIEW PAPERS, 36 (1B), 439-443 (1997)
Theoretical analysis of the
picosecond, induced absorption exhibited by chloroaluminium
phthalocyanine
S Hughes, G Spruce, J M Burzler, R Rangelrojo, B S Wherrett
JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B - OPTICAL PHYSICS, 14
(2), 400-404 (1997)
Langmuir-Blodgett deposition
and 2nd-order nonlinear optics of several azobenzene dye polymers
J P Cresswell, M C Petty, I Ferguson, M Hutchings, S Allen, T G Ryan, C
H Wang, B S Wherrett
ADVANCED MATERIALS FOR OPTICS AND ELECTRONICS, 6
(1), 33-38 (1996)
Synthesis and optical
characterization of ploydiacetylenes
containing carboxylic-acid, carbamate, phosphonium, and quaternary
ammonium functionalities
I H Jenkins, A K Kar, W E Lindsell, C Murray, P N Preston, C H Wang, B
S Wherrett
MACROMOLECULES, 29 (20), 6365-6370 (1996)
Photon-recycling and
optically driven plasma-expansion
techniques applied to lifetime measurements on molecular-beam-epitaxy
ZnSe
I J Blewett N R Gallaher, A K Kar, B S Wherrett
JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B - OPTICAL PHYSICS, 13
(5), 779-787 (1996)
The nonlinear behaviour of
II-VI materials
B S Wherrett
JOURNAL OF CRYSTAL GROWTH, 159 (1-4), 766-770 (1996)
Split-step fourier methods
applied to model nonlinear refractive effects in optically thick media
J M Burzler, J M Hughes, B S Wherrett
APPLIED PHYSICS B-LASERS AND OPTICS, 62 (4),
389-397 (1996)
Nanosecond
optical-excitation dynamics of long M-state lifetime bacteriorhodopsin
films
M Bacon, C H Wang, A K Kar, R L Baxter, B S Wherrett
OPTICS COMMUNICATIONS, 124 (1-2), 175-183 (1996)
3rd-order optical
nonlinearities of a ploymeric film doped with a novel zwitterion
demi-C3NQ
R Rangelrojo, A K Kar, B S Wherrett, M Carroll, G H Cross & D
Bloor
REVISTA MEXICANA DE FISICA, 41 (6), 832-840 (1995)
Theory of the anisotropy of
ultrafast nonlinear refraction in zincblende semiconductors
D C Hutchings & B S Wherrett
PHYSICAL REVIEW B - CONDENSED MATTER, 52 (11),
8150-8159 (1995) |
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