Characterization of CsB<sub>3</sub>O<sub>5</sub> crystal for ultraviolet generation

Yicheng Wu; Peizhen Fu; Junxin Wang; Zuyan Xu; Li Zhang; Yufei Kong; Chuangtian Chen

doi:10.1364/OL.22.001840

Optics Letters
Vol. 22,
Issue 24,
pp. 1840-1842
(1997)
•https://doi.org/10.1364/OL.22.001840

Characterization of CsB₃O₅ crystal for ultraviolet generation

Yicheng Wu, Peizhen Fu, Junxin Wang, Zuyan Xu, Li Zhang, Yufei Kong, and Chuangtian Chen

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Yicheng Wu, Peizhen Fu, Junxin Wang, Zuyan Xu, Li Zhang, Yufei Kong, and Chuangtian Chen, "Characterization of CsB₃O₅ crystal for ultraviolet generation," Opt. Lett. 22, 1840-1842 (1997)

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Abstract

We present sum-frequency generation (SFG) characteristics of ${CsB}_{3} O_{5}$ crystal (CBO). The effective nonlinear-optical coefficient of CBO in the ultraviolet range is close to its maximum. High-efficiency SFG with a picosecond Nd:YAG laser with output wavelengths of 355 and 266 nm was achieved. Experiments showed that CBO can be used under high power density without damage to the crystal.

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Crystal	UV Absorption Edge (nm)	Birefrigence $(λ = 1064 nm)$	NLO Coeff. $[d_{36} (KDP)]$	Damage Threshold $(GW / {cm}^{2})$	Ref.
CBO	167	$Δ n = 0.063$	$d_{14} = 2.7$	$26 (1.0 ns, 1053 nm)$	4
LBO	160	$Δ n = 0.040$	$d_{31} = 2.5$	$25 (0.1 ns, 1064 nm)$	5
			$d_{32} = 2.7$

				PM Angles (deg)			Acceptance Angles (mrad cm)
Interacting Wavelengths (nm)	PM Type	Crystal	$d_{eff}$ $[d_{36} (KDP)]$	$θ$	$ϕ$	$Δ θ - L$	$Δ ϕ - L$	Walk-off Angle (deg)
$1064 \to 532$	I	CBO	2.4	58.2	0	1.69	52	1.79
		LBO	2.6	90	11.6	94a	8.2	0.35
$1064 \to 532$	II	CBO	1.2	90	13.1
		LBO	2.4	20.5	90
$1064 + 532 \to 355$	I	CBO	1.2	25.5	90
		LBO	2.1	90	37.2
$1064 + 532 \to 355$	II	CBO	2.7	90	40.3	53	2.9	0.93
		LBO	1.9	42.2	90	5.65	81a	0.53
$1064 + 355 \to 266$	I	CBO	2.6	52.3	90	1.08	47a	1.43
		LBO	1.3	90	60.6	72	1.47	1.01

Crystal	UV Absorption Edge (nm)	Birefrigence $(λ = 1064 nm)$	NLO Coeff. $[d_{36} (KDP)]$	Damage Threshold $(GW / {cm}^{2})$	Ref.
CBO	167	$Δ n = 0.063$	$d_{14} = 2.7$	$26 (1.0 ns, 1053 nm)$	4
LBO	160	$Δ n = 0.040$	$d_{31} = 2.5$	$25 (0.1 ns, 1064 nm)$	5
			$d_{32} = 2.7$

				PM Angles (deg)			Acceptance Angles (mrad cm)
Interacting Wavelengths (nm)	PM Type	Crystal	$d_{eff}$ $[d_{36} (KDP)]$	$θ$	$ϕ$	$Δ θ - L$	$Δ ϕ - L$	Walk-off Angle (deg)
$1064 \to 532$	I	CBO	2.4	58.2	0	1.69	52	1.79
		LBO	2.6	90	11.6	94a	8.2	0.35
$1064 \to 532$	II	CBO	1.2	90	13.1
		LBO	2.4	20.5	90
$1064 + 532 \to 355$	I	CBO	1.2	25.5	90
		LBO	2.1	90	37.2
$1064 + 532 \to 355$	II	CBO	2.7	90	40.3	53	2.9	0.93
		LBO	1.9	42.2	90	5.65	81a	0.53
$1064 + 355 \to 266$	I	CBO	2.6	52.3	90	1.08	47a	1.43
		LBO	1.3	90	60.6	72	1.47	1.01

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Optics Letters