RTP Crystal (Rubidium Titanyl Phosphate or RTiOPO4)

Crystals >>> Electro Optical Crystals >>>  RTP Crystal

Advantage:

  • Excellent crystal for Electro Optical applications at high repetition rate. 

  • High Damage Threshold,low Insertion Loss 

  • Does not induce piezo-electric effect

  • Non-hygroscopic

  • High Extinction and Contrast Ratio

Main Specifications  
Dimension tolerance  0.1mm 
Flatness <l/8 @633nm 
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 
Coating AR coatings 
Clear aperture >90% central area 
Transmitting wavefront distortion less than l/8 @ 633nm Dimension 

Note: 
To inquire or order a finished RTP crystals, please provide detailed specifications as listed in the above.  We require engineering drawing for specific orientation.  

Physical and Chemical Properties
Crystal Structure Orthorhombic
Lattice Parameters a = 12.96 A,b = 10.56 A,c = 6.49A 
Density 3.6 g/cm3
Melting Point ~ 1000 C
Ferroeletric transition temperature  ~810C 
Mohs Hardness ~5
Thermal Expansion Coefficients, /C  a1=1.01x10^-5, a2=1.37x10^-5, a3=-4.17x10^-6
Hygroscopic Susceptibility No
Dielectric Constant Eeff = 13.0
Color Colorless 
Ionic conductivity (room temperature, 10kHz)  10^ -8 S/cm 
Optical Properties
Transmitting range 350 ~ 4500 nm
Sellmeier equations nx2=2.15559 + 0.93307[1-(0.20994/λ)2] - 0.01452λ2
ny2=2.38494 + 0.73603[1-(0.23891/
λ)2] - 0.01583 λ2
nz2=2.27723 + 1.11030[1-(0.23454/
λ)2] - 0.01995λ2
Absorption coefficient:  < 0.05 % / cm @ 1064 nm < 4 % /cm @ 532 nm 
Nonlinear Properties
Nonlinear Coefficients: 
 

d15 = 2.0 pm/V 
d24 = 3.6 pm/V 
d31 = 2.0 pm/V 
d32 = 3.6 pm/V 
d33 = 8.3 pm/V 
deff for Type II SHG@1064nm= 2.39 pm/V
Electro-optic coefficients:(pm/V)
Xcut Propagation
Low frequency
Y cut Propagation 
Low frequency 
r13 10.6
r23  12.5
r33  35 38.5 
Nonlinear coefficients
 (@ 10-64nm)
d31=2.54pm/V, d31=4.35pm/V, d31=16.9pm/V
d24=3.64pm/V, d15=1.91pm/V at 1.064 mm
Static Half Wave Voltage @1064nm
1445 V for a pair of 4x4x10mm 
1,600 V for a pair of 4x4x20mm 
1,700 V for a pair of 6x6x7mm 
2,400 V for a pair of 6x6x20 mm 
Damage Threshold: pulse 10 nsec > 600 MW/cm2 @ 1064 nm

 

 

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