Efficient second to ninth harmonic generation using megawatt peak power microchip laser | Zendy

Rakesh Bhandari | Zendy; Naoki Tsuji | Zendy; T. Suzuki | Zendy; Masayuki Nishifuji | Zendy; Takunori Taira | Zendy

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Efficient second to ninth harmonic generation using megawatt peak power microchip laser

Author(s) -

Rakesh Bhandari,

Naoki Tsuji,

T. Suzuki,

Masayuki Nishifuji,

Takunori Taira

Publication year - 2013

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.21.028849

Subject(s) - lithium triborate , optics , materials science , laser , barium borate , second harmonic generation , energy conversion efficiency , high harmonic generation , nanosecond , optoelectronics , sum frequency generation , nonlinear optics , physics

We report the design and use of a megawatt peak power Nd:YAG/Cr4+:YAG microchip laser for efficient second to ninth harmonic generation. We show that the sub-nanosecond pulse width region, between 100 ps and 1 ns, is ideally suited for efficient wavelength conversion. Using this feature, we report 85% second harmonic generation efficiency using lithium triborate (LBO), 60% fourth harmonic generation efficiency usingß-barium borate, and 44% IR to UV third harmonic generation efficiency using Type I and Type II LBO. Finally, we report the first demonstration of 118 nm VUV generation in xenon gas using a microchip laser.

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