Phase-matching properties of Ba2Ga8GeS16

Kiyoshi Kato; Kiyoshi Kato; Valeriy V. Badikov; Nobuhiro Umemura; Kentaro Miyata; Valentin Petrov

doi:10.1364/JOSAB.469072

Journal of the Optical Society of America B
Vol. 40,
Issue 1,
pp. A17-A20
(2023)
•https://doi.org/10.1364/JOSAB.469072

Phase-matching properties of Ba₂Ga₈GeS₁₆

Kiyoshi Kato, Valeriy V. Badikov, Nobuhiro Umemura, Kentaro Miyata, and Valentin Petrov

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Kiyoshi Kato, Valeriy V. Badikov, Nobuhiro Umemura, Kentaro Miyata, and Valentin Petrov, "Phase-matching properties of Ba₂Ga₈GeS₁₆," J. Opt. Soc. Am. B 40, A17-A20 (2023)

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- Optical Materials
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About this Article
History
- Original Manuscript: June 29, 2022
- Revised Manuscript: August 22, 2022
- Manuscript Accepted: September 27, 2022
- Published: October 18, 2022

Abstract

We report experimental results on the phase-matching properties of the quaternary ${{\rm Ba}_2}{{\rm Ga}_8}{{\rm GeS}_{16}}$ crystal for second-harmonic generation (SHG) and sum-frequency generation (SFG) of Nd:YAG laser-pumped ${{\rm KTiOPO}_4}$ (KTP) and ${{\rm HgGa}_2}{{\rm S}_4}$ (HGS) optical parametric oscillators (OPOs) and a waveguide ${{\rm CO}_2}$ laser in the 0.8054–10.5910 µm range. Based on these experimental data, we derive refined Sellmeier equations and thermo-optic dispersion formulas that are expected to enable practical applications of this new uniaxial nonoxide nonlinear crystal in the mid-IR part of the spectrum.

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Data underlying the results presented in this paper are not publicly available at this time but may be obtained from the authors upon reasonable request.

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	Wavelength (µm)^a			$θ_{p m}$ (deg)^b				$Δ T \cdot ℓ (^{\circ} C \cdot c m)$
	$λ_{1}$	$λ_{2}$	$λ_{3}$	Measured	(K)	(B)	$Δ θ_{e x t} \cdot ℓ$ (deg·cm)	Measured	(K)
SHG	$1. 8586^{\circ}$	$1. 8586^{\circ}$	$0. 9293^{e}$	90	90	87.87	6.49^c	3.7	3.7
	$1. 8622^{\circ}$	$1. 8622^{\circ}$	$0. 9311^{e}$	86.5	86.50	85.97	2.61	3.7	3.7
	$2. 0520^{\circ}$	$2. 0520^{\circ}$	$1. 0260^{e}$	65.9	65.66	65.99	0.47	5.4	5.3
	$2. 8112^{\circ}$	$2. 8112^{\circ}$	$1. 4056^{e}$	45.0	44.96	45.26	0.49	12.8	12.7
	$3. 2990^{\circ}$	$3. 2990^{\circ}$	$1. 6495^{e}$	40.4	40.35	40.42	0.58	17.3	17.0
	$5. 2955^{\circ}$	$5. 2955^{\circ}$	$2. 6478^{e}$	41.5	41.48	40.56	0.95	24.5	24.7
	$5. 9002^{\circ}$	$5. 9002^{\circ}$	$2. 9501^{e}$	45.0	45.00	43.82	1.05	NM^d	24.9
	$6. 7550^{\circ}$	$6. 7550^{\circ}$	$3. 3775^{e}$	51.4	51.72	50.18	1.24	24.1	24.3
	$7. 5250^{\circ}$	$7. 5250^{\circ}$	$3. 7625^{e}$	60.2	59.93	58.00	1.56	23.6	23.3
	$8. 6800^{\circ}$	$8. 6800^{\circ}$	$4. 3400^{e}$	$\sim 90$	88.20	79.85	14.6^c	NM^d	21.4
SFG	$3. 3118^{\circ}$	$1. 0642^{\circ}$	$0. 8054^{e}$	90	90	81.80	6.00^c	2.6	2.6
	$8. 6821^{\circ}$	$1. 0642^{\circ}$	$0. 9480^{e}$	44.6	44.56	43.96	0.32	7.4	7.4
	$10. 5910^{\circ}$	$3. 5303^{\circ}$	$2. 6478^{e}$	50.6	50.59	50.69	0.53	18.4	20.4

Abstract

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Journal of the Optical Society of America B