Growth and ultraviolet application of Li2B4O7 crystals: Generation of the fourth and fifth harmonics of Nd:Y3Al5O12 lasers

R. Komatsu; T. Sugawara; K. Sassa; N. Sarukura; Z. Liu; S. Izumida; Y. Segawa; S. Uda; T. Fukuda; K. Yamanouchi

doi:10.1063/1.119210

Growth and ultraviolet application of Li₂B₄O₇ crystals: Generation of the fourth and fifth harmonics of Nd:Y₃Al₅O₁₂ lasers

R. Komatsu, T. Sugawara, K. Sassa, N. Sarukura, Z. Liu, S. Izumida, Y. Segawa, S. Uda, T. Fukuda, K. Yamanouchi

New Industry Creation Hatchery Center (NICHe)

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

203 Citations (Scopus)

Abstract

A 2 in. diam single crystal of lithium tetraborate (Li₂B₄O₇) was successfully grown by the Czochralski method. The crystal was free from macrodefects and had a dislocation density as low as 100/cm². It had an excellent homogeneity of the refractive index and a wide transparency down to 170 nm. The optical damage threshold was 40 GW/cm². Second-harmonic generation and sum frequency generation were investigated in association with the generation of the fourth and fifth harmonics of a Q-switched Nd:YAG laser. The conversion efficiency of the second-harmonic generation from the green (532 nm) light was 20%.

Original language	English
Pages (from-to)	3492-3494
Number of pages	3
Journal	Applied Physics Letters
Volume	70
Issue number	26
DOIs	https://doi.org/10.1063/1.119210
Publication status	Published - 1997 Jun 30

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abstract = "A 2 in. diam single crystal of lithium tetraborate (Li2B4O7) was successfully grown by the Czochralski method. The crystal was free from macrodefects and had a dislocation density as low as 100/cm2. It had an excellent homogeneity of the refractive index and a wide transparency down to 170 nm. The optical damage threshold was 40 GW/cm2. Second-harmonic generation and sum frequency generation were investigated in association with the generation of the fourth and fifth harmonics of a Q-switched Nd:YAG laser. The conversion efficiency of the second-harmonic generation from the green (532 nm) light was 20%.",

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T2 - Generation of the fourth and fifth harmonics of Nd:Y3Al5O12 lasers

AU - Komatsu, R.

AU - Sugawara, T.

AU - Sassa, K.

AU - Sarukura, N.

AU - Liu, Z.

AU - Izumida, S.

AU - Segawa, Y.

AU - Uda, S.

AU - Fukuda, T.

AU - Yamanouchi, K.

PY - 1997/6/30

Y1 - 1997/6/30

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Growth and ultraviolet application of Li₂B₄O₇ crystals: Generation of the fourth and fifth harmonics of Nd:Y₃Al₅O₁₂ lasers

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