Publications
124 results found
Chamorro-Posada P, McDonald GS, New GHC, et al., 1999, Fast algorithm for studying the evolution of optical solitons under perturbations, 8th Biennial IEEE Conference on Electromagnetic Field Computation (IEEE CEFC 98), Publisher: IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, Pages: 1558-1561, ISSN: 0018-9464
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- Citations: 5
Marshall RJ, New GHC, Burnett K, et al., 1999, Exciting, cooling, and vortex trapping in a Bose-condensed gas, PHYSICAL REVIEW A, Vol: 59, Pages: 2085-2093, ISSN: 1050-2947
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- Citations: 40
Chamorro-Posada P, McDonald GS, New GHC, 1998, Non-paraxial solitons, 13th National Quantum Electronics Conference, Publisher: TAYLOR & FRANCIS LTD, Pages: 1111-1121, ISSN: 0950-0340
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- Citations: 63
McDonald GS, New GHC, Chan YM, et al., 1998, Nonlinear competing processes in multifrequency Raman generation, 13th National Quantum Electronics Conference, Publisher: TAYLOR & FRANCIS LTD, Pages: 1099-1110, ISSN: 0950-0340
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- Citations: 1
Ritsataki A, New GHC, Mellish R, et al., 1998, Theoretical modeling of gain-guiding effects in experimental all-solid-state KLM lasers, Meeting on Ultrafast Optics, Publisher: IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, Pages: 185-192, ISSN: 1077-260X
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- Citations: 8
McDonald GS, New GHC, Losev LL, et al., 1997, On the generation of ultra-broad bandwidth light in air at atmospheric pressure, JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, Vol: 30, Pages: L719-L725, ISSN: 0953-4075
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- Citations: 5
Ritsataki A, French PMW, New GHC, 1997, A numerical model of Kerr-lens mode-locking, OPTICS COMMUNICATIONS, Vol: 142, Pages: 315-321, ISSN: 0030-4018
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- Citations: 7
Ritsataki A, New GHC, Mellish R, et al., 1997, Gain profile analysis in experimental all-solid-state KLM cavities, Pages: 324-325, ISSN: 1092-8081
Models of Kerr-lens modelocked (KLM) lasers with both three- and four-mirror cavities were developed. The first model is a development of the approximate analytical approach while the second involves a beam propagation code that takes full account of the spatial gain profile. Results are applied to in-house diode pumped KLM Cr:LiSAF and Cr:YAG lasers including three mirror cavities.
Rippin MA, New GHC, 1996, Excess noise factors in circular unstable resonators, 12th National Quantum Electronics Conference, Publisher: TAYLOR & FRANCIS LTD, Pages: 993-1008, ISSN: 0950-0340
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- Citations: 16
ChavezCerda S, McDonald GS, New GHC, 1996, Nondiffracting beams: Travelling, standing, rotating and spiral waves, OPTICS COMMUNICATIONS, Vol: 123, Pages: 225-233, ISSN: 0030-4018
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- Citations: 97
Ritsataki A, French PMW, New GHC, 1996, Numerical model of Kerr-lens mode-locking, Conference Proceedings - Lasers and Electro-Optics Society Annual Meeting-LEOS, ISSN: 1092-8081
In recent years, there has been a great deal of interest in Kerr-lens mode-locking (KLM) in view of its implications for femtosecond pulse generation in solid-state lasers. Simple criteria for determining the cavity parameters that maximize the nonlinear amplitude modulation and promote self-starting have been sought, with attention centered on the parameter δ defined as the relative change of beam size w with power P at one of the cavity mirrors (δ = ((1/w)∂w/∂P)P→0). Optimal KLM operation occurs when δ exhibits its most negative value. The aim of this work has been to develop a general numerical model to calculate values of δ in both the tangential and sagittal planes, taking into consideration astigmatism introduced by off-axis spherical mirrors and Brewster-angled surfaces, nonlinear coupling of the beam sizes between the two planes of polarization, self-focusing and gain-guiding. The way in which contour plots of δ(x, z) change with the introduction of each of the above effects into the model and the effect on the optimum region for KLM have been studied.
NEW GHC, WILSON DC, 1995, SIMULATIONS OF RAMAN CONVERSION IN LARGE-APERTURE AMPLIFIERS, OPTICS COMMUNICATIONS, Vol: 119, Pages: 673-681, ISSN: 0030-4018
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- Citations: 5
NEW GHC, 1995, THE ORIGIN OF EXCESS NOISE, JOURNAL OF MODERN OPTICS, Vol: 42, Pages: 799-810, ISSN: 0950-0340
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- Citations: 54
LI JY, NEW GHC, SMITH K, et al., 1995, THEORY OF A FIBER RING LASER MODE-LOCKED BY CROSS-PHASE MODULATION, OPTICS COMMUNICATIONS, Vol: 114, Pages: 119-124, ISSN: 0030-4018
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- Citations: 3
McDonald GS, New GHC, Losev LL, et al., 1995, On the generation of ultrabroad bandwidth light for inertial confinement fusion, Laser Interaction with Matter, Pages: 85-88, ISSN: 0951-3248
MCDONALD GS, NEW GHC, LOSEV LL, et al., 1995, ON THE GENERATION OF ULTRABROAD BANDWIDTH LIGHT FOR INERTIAL CONFINEMENT FUSION, 23rd European Conference on Laser Interaction with Matter (ECLIM 94), Publisher: IOP PUBLISHING LTD, Pages: 85-88, ISSN: 0951-3248
MCDONALD GS, NEW GHC, LOSEV LL, et al., 1994, ULTRABROAD-BANDWIDTH MULTIFREQUENCY RAMAN GENERATION, OPTICS LETTERS, Vol: 19, Pages: 1400-1402, ISSN: 0146-9592
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- Citations: 30
SHAW MJ, BIALOLENKER G, HIRST GJ, et al., 1993, ULTRAHIGH-BRIGHTNESS LASER-BEAMS WITH LOW PREPULSE OBTAINED BY STIMULATED RAMAN-SCATTERING, OPTICS LETTERS, Vol: 18, Pages: 1320-1322, ISSN: 0146-9592
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- Citations: 18
MOREIRA CA, NEW GHC, 1993, MODE PROFILES IN RESONATORS WITH A NEAR 90-DEGREES ROOF-TOP MIRROR, APPLIED PHYSICS B-PHOTOPHYSICS AND LASER CHEMISTRY, Vol: 56, Pages: 373-378, ISSN: 0721-7269
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- Citations: 1
HILL KE, NEW GHC, RODGERS PA, et al., 1992, THE INFLUENCE OF NOISE AND ANGULAR-DISPERSION DURING SHORT PULSE RAMAN AMPLIFICATION, OPTICS COMMUNICATIONS, Vol: 87, Pages: 315-322, ISSN: 0030-4018
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- Citations: 3
ADAMU Y, NEW GHC, 1992, FLUCTUATIONS IN COHERENT PULSE-PROPAGATION, OPTICS COMMUNICATIONS, Vol: 87, Pages: 122-126, ISSN: 0030-4018
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- Citations: 3
NEW GHC, WOOD D, 1991, DYNAMICS OF GAIN-SWITCHED AND MODE-LOCKED SEMICONDUCTOR-LASERS, JOURNAL OF MODERN OPTICS, Vol: 38, Pages: 785-799, ISSN: 0950-0340
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- Citations: 6
HILL KE, NEW GHC, BURNETT K, 1991, COHERENT PULSE-PROPAGATION IN A KRF AMPLIFIER, JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS, Vol: 8, Pages: 839-848, ISSN: 0740-3224
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- Citations: 5
NEW GHC, 1990, SELF-STABILIZATION OF SYNCHRONOUSLY MODE-LOCKED LASERS, OPTICS LETTERS, Vol: 15, Pages: 1306-1308, ISSN: 0146-9592
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- Citations: 37
NEW G, 1990, FEMTOFASCINATION, PHYSICS WORLD, Vol: 3, Pages: 33-37, ISSN: 0953-8585
HILL KE, NEW GHC, BURNETT K, 1990, PHOTODISSOCIATION OF KRF BY INTENSE ULTRASHORT PULSES, JOURNAL OF CHEMICAL PHYSICS, Vol: 92, Pages: 5885-5891, ISSN: 0021-9606
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- Citations: 3
AVRAMOPOULOS H, FRENCH PMW, NEW GHC, et al., 1990, TEMPORAL AND SPECTRAL BEHAVIOR OF PASSIVELY MODE-LOCKED DYE-LASERS, OPTICS COMMUNICATIONS, Vol: 76, Pages: 229-234, ISSN: 0030-4018
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- Citations: 5
AVRAMOPOULOS H, FRENCH PMW, NEW GHC, et al., 1989, ANALYSIS OF PERIODIC PULSE EVOLUTIONS IN A PASSIVELY MODE-LOCKED RING DYE-LASER, IEEE JOURNAL OF QUANTUM ELECTRONICS, Vol: 25, Pages: 2469-2475, ISSN: 0018-9197
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- Citations: 9
HILL KE, BURNETT K, NEW GHC, 1989, COHERENT PULSE AMPLIFICATION IN EXCIMER LASER-AMPLIFIERS, JOURNAL OF MODERN OPTICS, Vol: 36, Pages: 965-975, ISSN: 0950-0340
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- Citations: 7
AVRAMOPOULOS H, NEW GHC, 1989, A NUMERICAL-MODEL FOR THE STUDY OF PHASE EFFECTS IN PASSIVE MODE-LOCKING, OPTICS COMMUNICATIONS, Vol: 71, Pages: 370-376, ISSN: 0030-4018
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- Citations: 13
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