RbTiOPO4(RTP) crystal is a kind of nonlinear optical crystal material with excellent comprehensive properties. RTP is currently the most commonly used type of practical electro-optic crystals with high frequency repetition, high power and narrow pulse width laser Q switching. RTP electro-optical devices are not only used in laser micromachining and laser ranging, but also in major scientific exploration projects because of their excellent comprehensive performance.
RbTiOPO4(RTP)—a crystal with large nonlinear optical coefficient, large electro-optical coefficient, high photoresist damage threshold and stable physical and chemical properties
The growth temperature ranges from 950 °C to 800 °C and the growth period is usually between 45 and 60 days.As RTP is transparent from 0.4 to 3.5 μm, it can be used in multiple types of laser such as Er:YAG laser at 2.94 μm with fairly good efficiency. Bulk absorption measurements at 1.064 μm range from 50 to 150 ppm using Photothermal Common Path Interferometer.
Pockels cell size(mm)
Dia20/25.4*35( Clear aperture 3*3，4*4，5*5)
|Lattice parameters, Å||a 12.96|
|Resistivity (20°C, 20% Humidity), Ohm.cm||1012|
|Aperture, mm2||from 2×2 to 9×9|
|Length, mm||up to 10|
|Dimension tolerance||±0.1 mm|
|Flatness||<l/8 @633 nm|
|Surface quality||Scratch/Dig 10/5|
|Parallelism||better than 30 arc sec|
|Perpendicularity||better than 30 arc min|
|Angle tolerance||△q < 0.5°, △f < 0.5°|
|Clear aperture||>90% central area|
|Transmitting wavefront distortion||less than l/8 @ 633 nm Dimension|
|Melting Point||~ 1000 °C|
|Ferroeletric transition temperature||~810 °C|
|Thermal Expansion Coefficients, /°C||a1=1.01×10-5, a2=1.37×10-5, a3=-4.17×10-6|
|Ionic conductivity (room temperature, 10 kHz)||10-8 S/cm|
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