Refractive index of KTiOPO4 (Potassium titanyl phosphate, KTP)

Optical constants of KTiOPO₄ (Potassium titanyl phosphate, KTP)
Kato and Takaoka 2002: n(β) 0.43–3.54 µm

Wavelength: µm

(0.43–3.54)

Complex refractive index (n+ik)[ i ]

Derived optical constants

Dispersion formula [ i ]

$$n^2=3.45018+\frac{0.04341}{λ^2-0.04597}+\frac{16.98825}{λ^2-39.43799}$$

Comments

n_β; 20 °C.

References

K. Kato and E. Takaoka. Sellmeier and thermo-optic dispersion formulas for KTP. Appl. Opt. 41, 5040-5044 (2002).

Data

[Expressions for n] [CSV - comma separated] [TXT - tab separated] [Full database record]

Optical transmission calculator

Wavelength: µm
Thickness:
Calculation method:

Transmittance[ i ]

T =

LogX LogY eV

Reflection calculator

Wavelength: µm
Angle of incidence (0~90°):
Direction: in out

Reflectance[ i ]

P-polarized

R_P =

S-polarized

R_S =

Non-polarized (Rp+Rs)/2

R =

R_P R_S R LogY

Reflection phase[ i ]

ɸ_P = °
ɸ_S = °

Brewster's angle[ i ]

θ_B = °

Critical angle[ i ] [ i ]

θ_C = °

INFO

Potassium titanyl phosphate, KTiOPO₄ (KTP)

Potassium titanyl phosphate (KTiOPO₄, commonly abbreviated as KTP) is a nonlinear optical material widely used in a variety of photonic applications, including frequency doubling of laser sources, optical parametric oscillation, and electro-optic modulation. KTP exhibits a broad transparency range from approximately 350 nm to 4.5 μm. One of its noteworthy advantages is its high damage threshold, which makes it suitable for high-power laser applications. The crystal also exhibits good phase-matching conditions over an extensive range of wavelengths, making it a material of choice for tunable and multi-wavelength laser sources. It's commonly utilized in green laser pointers via frequency doubling of Nd:YAG or Nd:YVO₄ lasers, which emit at 1064 nm. Overall, KTP's combination of optical and mechanical properties make it an important material in the field of nonlinear optics.

RefractiveIndex.INFO

Optical constants of KTiOPO₄ (Potassium titanyl phosphate, KTP)
Kato and Takaoka 2002: n(β) 0.43–3.54 µm

Complex refractive index (n+ik)[ i ]

Refractive index[ i ]

Extinction coefficient[ i ]

Derived optical constants

Relative permittivity (dielectric constants)[ i ] [ i ]

Absorption coefficient[ i ] [ i ]

Abbe number[ i ]

Chromatic dispersion[ i ]

Group index[ i ] [ i ]

Group velocity dispersion[ i ] [ i ] [ i ]

Dispersion formula [ i ]

Comments

References

Data

Optical transmission calculator

Transmittance[ i ]

Reflection calculator

Reflectance[ i ]

P-polarized

S-polarized

Non-polarized (Rp+Rs)/2

Reflection phase[ i ]

Brewster's angle[ i ]

Critical angle[ i ] [ i ]

INFO

Potassium titanyl phosphate, KTiOPO₄ (KTP)

External links

Optical constants of KTiOPO4 (Potassium titanyl phosphate, KTP)Kato and Takaoka 2002: n(β) 0.43–3.54 µm

Complex refractive index (n+ik)[ i ]

Refractive index[ i ]

Extinction coefficient[ i ]

Derived optical constants

Relative permittivity (dielectric constants)[ i ] [ i ]

Absorption coefficient[ i ] [ i ]

Abbe number[ i ]

Chromatic dispersion[ i ]

Group index[ i ] [ i ]

Group velocity dispersion[ i ] [ i ] [ i ]

Dispersion formula [ i ]

Comments

References

Data

Optical transmission calculator

Transmittance[ i ]

Reflection calculator

Reflectance[ i ]

P-polarized

S-polarized

Non-polarized (Rp+Rs)/2

Reflection phase[ i ]

Brewster's angle[ i ]

Critical angle[ i ] [ i ]

INFO

Potassium titanyl phosphate, KTiOPO4 (KTP)

External links

Optical constants of KTiOPO₄ (Potassium titanyl phosphate, KTP)
Kato and Takaoka 2002: n(β) 0.43–3.54 µm

Potassium titanyl phosphate, KTiOPO₄ (KTP)