• Chinese Journal of Lasers
  • Vol. 51, Issue 7, 0701013 (2024)
Huagang Liu, Kaiming Ruan, Jinhui Li, Fei Shi..., Jianhong Huang and Wenxiong Lin*|Show fewer author(s)
Author Affiliations
  • Key Laboratory of Optoelectronic Materials Chemistry and Physics, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, Fujian , China
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    DOI: 10.3788/CJL231524 Cite this Article Set citation alerts
    Huagang Liu, Kaiming Ruan, Jinhui Li, Fei Shi, Jianhong Huang, Wenxiong Lin. High‑Repetition‑Rate Continuously Tunable Ultra‑Short Pulse Laser Across Range from 192 nm to 300 nm[J]. Chinese Journal of Lasers, 2024, 51(7): 0701013 Copy Citation Text show less
    Schematic of 192‒300 nm continuously tunable deep ultraviolet/ultraviolet laser
    Fig. 1. Schematic of 192‒300 nm continuously tunable deep ultraviolet/ultraviolet laser
    Frequency conversion power and conversion efficiency of laser at each stage. (a) Fundamental laser; (b) second harmonic generation (375‒500 nm); (c) direct forth harmonic generation (210‒250 nm); (d) third harmonic generation from sum frequency(250‒300 nm); (e) forth harmonic generation from sum frequency(192‒210 nm)
    Fig. 2. Frequency conversion power and conversion efficiency of laser at each stage. (a) Fundamental laser; (b) second harmonic generation (375‒500 nm); (c) direct forth harmonic generation (210‒250 nm); (d) third harmonic generation from sum frequency(250‒300 nm); (e) forth harmonic generation from sum frequency(192‒210 nm)
    Schematic of compensation of spatial walk-off
    Fig. 3. Schematic of compensation of spatial walk-off
    Output spectra of continuously tunable deep ultraviolet/ultraviolet laser covering 192‒300 nm band
    Fig. 4. Output spectra of continuously tunable deep ultraviolet/ultraviolet laser covering 192‒300 nm band
    Cross-correlation curve of third harmonic with wavelength of 266.7 nm
    Fig. 5. Cross-correlation curve of third harmonic with wavelength of 266.7 nm
    Long term monitoring of beam pointing stability
    Fig. 6. Long term monitoring of beam pointing stability
    Wavelength rangeModule No.Frequency conversionCrystal and type of phase matching

    Size /

    (mm×mm×mm)

    Crystal angle /(°)
    210‒250 nmModule 1SHG:ω0+ω0→2ω0BBSAG, Type Ⅰ5.5×5.5×126.3
    FHG:2ω0+2ω0→4ω0BBSAG, Type Ⅰ5.5×5.5×167.55
    250‒300 nmModule 2SHG:ω0+ω0→2ω0BBSAG, Type Ⅰ5.5×5.5×129.2
    THG:2ω0+ω0→3ω0BBSAG, Type Ⅰ5.5×5.5×144.4
    192‒210 nmModule 3FHG:3ω0+ω0→4ω0BBSAG, Type Ⅰ5.5×5.5×164.8
    Table 1. Crystal parameters for SHG and SFG
    Huagang Liu, Kaiming Ruan, Jinhui Li, Fei Shi, Jianhong Huang, Wenxiong Lin. High‑Repetition‑Rate Continuously Tunable Ultra‑Short Pulse Laser Across Range from 192 nm to 300 nm[J]. Chinese Journal of Lasers, 2024, 51(7): 0701013
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