Second harmonic generation with focused beams under conditions of large group velocity mismatch

Solomon Saltiel; Kaloian Koynov; Ben Agate; Wilson Sibbett

Second harmonic generation with focused beams under conditions of large group velocity mismatch

Solomon Saltiel, Kaloian Koynov, Ben Agate, Wilson Sibbett

School of Physics and Astronomy

Research output: Contribution to journal › Article › peer-review

Abstract

We present a theoretical model that describes the focusing conditions for second-harmonic generation (SHG) of focused femtosecond pulses as a function of group-velocity mismatch (GVM), with direct application to efficient SHG using a "thick" nonlinear crystal. We observe a direct dependence of the optimal focusing ratio, L/b, on the strength of group-velocity mismatch. Our model also describes the temporal duration of the second-harmonic pulses under these conditions as well as the change in optimal phase mismatch. The theoretical results are compared with an experiment for SHG with focused feratosecond pulses in a "thick" crystal of KNbO3. (C) 2004 optical Society of America.

Original language	English
Pages (from-to)	591-598
Number of pages	8
Journal	Journal of the Optical Society of America B : Optical Physics
Volume	21
Issue number	3
Publication status	Published - Mar 2004

Keywords

BLUE-LIGHT GENERATION
FEMTOSECOND PULSES
KNBO3
EFFICIENT
CRYSTAL

Cite this

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title = "Second harmonic generation with focused beams under conditions of large group velocity mismatch",

abstract = "We present a theoretical model that describes the focusing conditions for second-harmonic generation (SHG) of focused femtosecond pulses as a function of group-velocity mismatch (GVM), with direct application to efficient SHG using a {"}thick{"} nonlinear crystal. We observe a direct dependence of the optimal focusing ratio, L/b, on the strength of group-velocity mismatch. Our model also describes the temporal duration of the second-harmonic pulses under these conditions as well as the change in optimal phase mismatch. The theoretical results are compared with an experiment for SHG with focused feratosecond pulses in a {"}thick{"} crystal of KNbO3. (C) 2004 optical Society of America.",

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author = "Solomon Saltiel and Kaloian Koynov and Ben Agate and Wilson Sibbett",

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T1 - Second harmonic generation with focused beams under conditions of large group velocity mismatch

AU - Saltiel, Solomon

AU - Koynov, Kaloian

AU - Agate, Ben

AU - Sibbett, Wilson

PY - 2004/3

Y1 - 2004/3

N2 - We present a theoretical model that describes the focusing conditions for second-harmonic generation (SHG) of focused femtosecond pulses as a function of group-velocity mismatch (GVM), with direct application to efficient SHG using a "thick" nonlinear crystal. We observe a direct dependence of the optimal focusing ratio, L/b, on the strength of group-velocity mismatch. Our model also describes the temporal duration of the second-harmonic pulses under these conditions as well as the change in optimal phase mismatch. The theoretical results are compared with an experiment for SHG with focused feratosecond pulses in a "thick" crystal of KNbO3. (C) 2004 optical Society of America.

AB - We present a theoretical model that describes the focusing conditions for second-harmonic generation (SHG) of focused femtosecond pulses as a function of group-velocity mismatch (GVM), with direct application to efficient SHG using a "thick" nonlinear crystal. We observe a direct dependence of the optimal focusing ratio, L/b, on the strength of group-velocity mismatch. Our model also describes the temporal duration of the second-harmonic pulses under these conditions as well as the change in optimal phase mismatch. The theoretical results are compared with an experiment for SHG with focused feratosecond pulses in a "thick" crystal of KNbO3. (C) 2004 optical Society of America.

KW - BLUE-LIGHT GENERATION

KW - FEMTOSECOND PULSES

KW - KNBO3

KW - EFFICIENT

KW - CRYSTAL

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M3 - Article

SN - 1520-8540

VL - 21

SP - 591

EP - 598

JO - Journal of the Optical Society of America B : Optical Physics

JF - Journal of the Optical Society of America B : Optical Physics

IS - 3

ER -

Second harmonic generation with focused beams under conditions of large group velocity mismatch

Abstract

Keywords

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