High-efficiency high-power coherent uv generation at 266 nm in 90° phase-matched deuterated KDP

Liu, Yung S.; Jones, W. B.; Chernoch, J. P.

doi:10.1063/1.88861

Cited by 61 publications

(28 citation statements)

References 3 publications

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“…Previously, NCPM fourth harmonic generation (FHG) of a 1053-nm Nd:glass laser and a 1064-nm Nd:YAG crystal laser were most concentrated in partially deuterated potassium dihydrogen phosphate (KD*P) crystals, i.e., K(D x H 1−x ) 2 PO 4 or DKDP, whose refractive index can be continuously adjusted by deuteration level or crystal temperature78910. Compared with DKDP, the ammonium dihydrogen phosphate (NH 4 H 2 PO 4 or ADP) crystal has a larger NLO coefficient, a higher laser damage threshold, a shorter UV transmission cut-off, a faster growth speed and a much lower production cost.…”

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confidence: 99%

Non-critical phase-matching fourth harmonic generation of a 1053-nm laser in an ADP crystal

Wang

Zhu

et al. 2013

Sci Rep

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In current inertial confinement fusion (ICF) facilities, KDP and DKDP crystals are the second harmonic generation (SHG) and third harmonic generation (THG) materials for the Nd:glass laser (1053 nm). Based on the trend for the development of short wavelengths for ICF driving lasers, technical solutions for fourth harmonic generation (FHG) will undoubtedly attract more and more attention. In this paper, the rapid growth of an ADP crystal and non-critical phase-matching (NCPM) FHG of a 1053-nm laser using an ADP crystal are reported. The NCPM temperature is 33.7°C. The conversion efficiency from 526 to 263 nm is 70%, and the angular acceptance range is 55.4 mrad; these results are superior to those for the DKDP crystals. This research has shown that ADP crystals will be a competitive candidate in future ICF facilities when the utilisation of high-energy, high-efficiency UV lasers at wavelengths shorter than the present 351 nm is of interest.

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Non-critical phase-matching fourth harmonic generation of a 1053-nm laser in an ADP crystal

Wang

Zhu

et al. 2013

Sci Rep

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“…[5][6] All solidstate lasers (ASSLs)a re preferred duet ot heir compact setup, high beam-quality,a nd al ong lifetime. [7][8][9][10] DUV light generation through cascaded frequency up-conversion in ASSLs largely depends on the performance of nonlinearo ptical (NLO) materials,w hich are essential for the development of DUV ASSLs. [11][12][13][14] At present, commercially availableN LO materials such as KDP (KH 2 PO 4 ), [15,16] KTP (KTiOPO 4 ), [17,18] b-BBO (b-BaB 2 O 4 ), [19,20] LBO (LiB 3 O 5 ), [21,22] CLBO (CsLiB 6 O 10 ), [23,24] and LN (LiNbO 3 ) [25][26][27] have been widely used.…”

Section: Introductionmentioning

confidence: 99%

Fluorooxoborates: Ushering in a New Era of Deep Ultraviolet Nonlinear Optical Materials

Han

Wang

Zhang

et al. 2018

Chemistry A European J

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Borates are one of the most important classes of functional materials, and several hundreds of artificial borates have been synthesized. The substitution of oxygen by fluorine leads to manifold classes of borates. Fluorooxoborates (also known as fluoroborates), in which the F atoms covalently connect with the B atoms, show additional compositional and structural diversity compared to classic borates. Recently, owing to the large polarizability anisotropy, large HOMO-LUMO gaps, and high hyperpolarizability of the oxyfluoride BO F building blocks, fluorooxoborates have received unprecedented attention in the search for new ultraviolet (UV) and deep-UV (DUV) nonlinear optical (NLO) materials. Specifically, some compounds have excellent NLO properties that are comparable or superior to KBe BO F , which is the only usable crystal that generates coherent light below 200 nm through a direct second harmonic generation (SHG) process. This Minireview illustrates recent progress on the synthesis, crystal structures, structure-properties relationships and applications of fluorooxoborates. This paper concludes by highlighting the outstanding opportunities offered by NLO fluorooxoborate crystals as an innovative avenue for DUV all solid-state coherent light generation.

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“…[3][4][5][6][7][8][9][10][11][12][13][14][15] Among them, the preferable candidates are considered to be 60% deuterium content DADP and 70% deuterium content DKDP, which can realize room temperature NCPM FHG of 1053 nm laser with extremely high conversion efficiency. KDP type crystals can realize NCPM FHG in 1050-1070 nm wavelength range.…”

Section: Introductionmentioning

confidence: 99%

Rapid growth of a large size, highly deuterated DKDP crystal and its efficient noncritical phase matching fourth-harmonic-generation of a Nd:YAG laser

Zhang

et al. 2015

RSC Adv.

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A high quality, large size (100 Â 105 Â 96 mm 3 ) deuterated potassium dihydrogen phosphate (DKDP) crystal with high deuterium content was successfully grown by the rapid growth method. A noncritical phase matching (NCPM) fourth-harmonic-generation (FHG) of Nd:YAG laser (1064 nm) was realized at 39.7 C or so. The smallest full width at half maximum (FWHM) of angular acceptance for the longest crystal sample (20 mm) is 33.5 mrad, which is 10 times larger than the value of critically PM of a KDP crystal.The FHG conversion efficiency increases with the crystal length and reaches 64% for the 20 mm long crystal. As we have known, this is the highest FHG conversion efficiency of a 1064 nm laser with a repetition rate of 10 Hz in low drive conditions.

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High-efficiency high-power coherent uv generation at 266 nm in 90° phase-matched deuterated KDP

Cited by 61 publications

References 3 publications

Non-critical phase-matching fourth harmonic generation of a 1053-nm laser in an ADP crystal

Non-critical phase-matching fourth harmonic generation of a 1053-nm laser in an ADP crystal

Fluorooxoborates: Ushering in a New Era of Deep Ultraviolet Nonlinear Optical Materials

Rapid growth of a large size, highly deuterated DKDP crystal and its efficient noncritical phase matching fourth-harmonic-generation of a Nd:YAG laser

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