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RTP
Applications

an excellent crystal for Electro Optical applications at high repetition rate;

High Damage Threshold,low Insertion Loss;

Not induce piezo-electric effect ;

Non-hygroscopic;

High Extinction and Contrast Ratio;

    
1.Physical and Chemical Properties:

Crystal Structure

Orthorhombic,

Lattice Parameters

a = 12.96 A¡ã,b = 10.56 A,c = 6.49A¡ã

Density

3.6 g/cm3

Melting Point

~ 1000 ¡ãC

Ferroeletric transition temperature

~810¡ãC

Mohs Hardness

~5

Thermal Expansion Coefficients,/¡ãC 

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

2.Optical Properties:

Transmitting range:

350~4500 nm

Sellmeier equations:

Ni^2=Ai+Bi[1-(Ci/¦Ë)^2]-Di¦Ë^2

index

A

B

C

D

Nx

2.15559

0.93307

0.20994

0.01452

Ny

2.38494

0.73603

0.23891

0.01583

Nz

2.27723

1.11030

0.23454

0.01995

Absorption coefficient:

< 0.05 % / cm @ 1064 nm < 4 % /cm @ 532 nm

 
3.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 fortype 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

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:10 nsec pulse

> 600 MW/cm2 @ 1064 nm,

 
4.RTP'Main Specifications

Transmitting wavefront distortion:

less than l/8 @ 633nm

Dimension tolerance:

¡À0.1mm

Flatness:

<l/8 @633nm

Surface quality: Scratch/Dig

10/5

Parallelism:

< 30 arc sec.

Perpendicularity:

< 30 arc min

Angle tolerance:

¡÷q < 0.5¡ã,¡÷f < 0.5¡ã

AR coating:

AR coatings