• High Energy Harmonic Beamsplitters

    High Energy Harmonic Beamsplitter, regular plate window
    1. Substrate:
      • Material: UV fused silica or BK7
      • Clear Aperture: larger than 85%
      • Surface Quality (Scratch-Dig):
        • 10-5 for regular plate windows
        • 60-40 for super thin plate windows
      • Surface Flatness:
        • λ/10 @633nm for regular plate windows
        • λ/10 per mm @633nm for super thin plate windows
      • High Energy Harmonic BeamsplitterThickness:
        • 0.25" ±0.01" for regular plate windows
        • 0.15mm ±0.02mm for super thin plate windows
      • Angular Deviation: ±3 arc min
      • Bevel: <0.5mm @45˚ typical
    2. Reflectance:
      • 1st Surface: R≥99.5% at user specificed wavelength
      • 2nd Surface: Anti-reflection coating, Rp≤0.25%, Runp≤0.75%, Rs≤1.3% @45˚
    3. Transmittance: Tave ≥90% for longer λ, Tave ≥85% for shorter λ
    4. Angle of Incidence: 45˚
    5. Damage Threshold: 1MW/cm2, CW; 10J/cm2, 20ns, 20Hz (for R); 4J/cm2, 20ns, 20Hz (for T)  @1064nm
      High energy harmonic beamsplitters are similar with regular dichroic beamsplitters. They were specially designed to separate a primary wavelength and its harmonic wavelength from a laser. Spectral Optics provide these harmonic beamsplitters for Nd:YAG and Ti:Shaaphire laser systems. 
      The 1st surface with a high energy dichroic coating reflects the target wavelength ≥99.5% and transmits other target wavelength ≥90% for longer than target reflecting wavelength or ≥85% for shorter than target reflecting wavelength. The 2nd surface has a high energy anti-reflection coating for the target transmitting wavelength.
      If the beam size is small (<3mm dia) and the minimal beam deviation is needed, our super thin plate could be a good solution.

    Product List

    1. Regular Plate Harmonic Beamsplitter:
    R λ (nm) T λ* (nm) Size Part Number Price (USD)
    266 532 1.0" RPHBS-R266-T532-100-FS $345
    1.5" RPHBS-R266-T532-150-FS $395
    2.0" RPHBS-R266-T532-200-FS $480
    266 1064 1.0" RPHBS-R266-T1064-100-FS $345
    1.5" RPHBS-R266-T1064-150-FS $395
    2.0" RPHBS-R266-T1064-200-FS $480
    355 532 1.0" RPHBS-R355-T532-100-FS $305
    1.5" RPHBS-R355-T532-150-FS $355
    2.0" RPHBS-R355-T532-200-FS $415
    355 1064 1.0" RPHBS-R355-T1064-100-FS $305
    1.5" RPHBS-R355-T1064-150-FS $355
    2.0" RPHBS-R355-T1064-200-FS $415
    400 800 1.0" RPHBS-R400-T800-100-BK $270
    1.5" RPHBS-R400-T800-150-BK $310
    2.0" RPHBS-R400-T800-200-BK $350
    532 1064 1.0" RPHBS-R532-T1064-100-BK $260
    1.5" RPHBS-R532-T1064-150-BK $295
    2.0" RPHBS-R532-T1064-200-BK $340
    1064 532 1.0" RPHBS-R1064-T532-100-BK $260
    1.5" RPHBS-R1064-T532-150-BK $295
    2.0" RPHBS-R1064-T532-200-BK $340
    * The anti-reflection coating on the 2nd side will be for T λ (nm).
    2. Super Thin Plate Harmonic Beamsplitter:
    R λ (nm) T λ* (nm) Part Number Price (USD)
    355 532 STHBS-R355-T532-025 $225
    355 1064 STHBS-R355-T1064-025
    400 800 STHBS-R400-T800-025 $185
    532 1064 STHBS-R532-T1064-025
    1064 532 STHBS-R1064-T532-025

    * The anti-reflection coating on the 2nd side will be for T λ (nm).

     

     

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