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              KDP-KD*P

               

              磷酸二氫鉀(KDP),磷酸二氘鉀(DKDP)由于其擁有優(yōu)越的紫外透過(guò),高損傷閾值,雙折射系數(shù)高等特性,被廣泛地應(yīng)用在多種工業(yè)用途(其非線性系數(shù)偏低)。這兩種晶體通常被用于做Nd:YAG激光器的二、三、四倍頻器件(室溫條件下)。另外,它們也具有電光系數(shù)高的特點(diǎn),故也被用于制作Q開(kāi)關(guān)等。

              Capabilities:

              Width x Length:
              1x1 ~ 16x16mm
              Lenght:
              0.02 ~ 20mm

              Specifications:

              Angle tolerance:
              Δθ< ± 0.5°; Δφ< ±0.5°
              Dimensional Tolerance:
              (W ± 0.1mm) x (H ± 0.1mm) x (L + 0.2mm/-0.1mm)
              Flatness:
              <λ/8 at 633nm
              Surface Quality:
              20/10 Scracth/Dig
              Parallelism:
              < 20 arc seconds
              Perpendicularity:
              < 5 arc minutes
              Wavefront Distortion:
              <λ/8 at 633nm
              Clear Aperture:
              Central 95%
              Chamfer:
              0.15x45°
              Coating:
              * Protective coating is required to prevent polished surfaces from fogging.
              * Anti-reflective coating should be considered if low reflectivity is required.

              Properties: 

              KDP
              KD*P
              Chemical Formula
              KH2PO4
              KD2PO4
              Transparency Range
              200-1500nm
              200-1600nm
              Nonlinear Coefficients
              d36=0.44pm/V
              d36=0.40pm/V
              Refractive Index (at 1064nm)
              no=1.4938, ne=1.4599
              No=1.4948, ne=1.4554
              Electro-Optical Coefficients
              r41=8.8pm/V
              r63=10.3pm/V
              r41=8.8pm/V
              r63=25pm/V
              Longitudinal Half-Wave Voltage:
              Vp=7.65KV(l=546nm)
              Vp=2.98KV(l=546nm)
              Absorptance:
              0.07/cm
              0.006/cm
              Optical Damage Threshold:
              >5 GW/cm2
              >3 GW/cm2
              Extinction Ratio:
              30dB
              30dB

              Sellmeier Equations of KDP:
              no2 = 2.259276 + 0.01008956/(l2 - 0.012942625) + , 13.005522,, l, 2/(l2 - 400)
              ne2 = 2.132668 + 0.008637494/(l2 - 0.012281043) + 3.2279924l2/(l2 -, 400)

              Sellmeier Equations of DKDP
              no2 = 1.9575544 + 0.2901391/(l2 - 0.0281399) - 0.02824391l2 +0.004977826l4
              ne2 = 1.5005779 + 0.6276034/(l2 - 0.0131558) - 0.01054063l2 +0.002243821l4
               

               

              Note: Other sizes, cut angle, coating are available upon request.


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