Refractive index of Tl3AsSe3 (Thallium arsenic selenide, TAS)

Optical constants of Tl₃AsSe₃ (Thallium arsenic selenide, TAS)
Ewbank et al. 1980: n(e) 2–12 µm

Wavelength: µm

(2–12)

Complex refractive index (n+ik)[ i ]

Derived optical constants

Dispersion formula [ i ]

$$n^2-1=\frac{8.993λ^2}{λ^2-0.444^2}+\frac{0.308λ^2}{λ^2-25.0^2}$$

Comments

Extraordinary ray (e)

References

M. D. Ewbank, P. R. Newman, N. L. Mota, S. M. Lee, W. L. Wolfe, A. G. DeBell, W. A. Harrison. The temperature dependence of optical and mechanical properties of Tl₃AsSe₃. J. Appl. Phys. 51, 3848-3852 (1980)

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

Thallium arsenic selenide, Tl₃AsSe₃ (TAS)

Thallium arsenic selenide (Tl₃AsSe₃, often referred to as TAS) is a mixed crystal compound known for its nonlinear optical properties and high electro-optic coefficients. Its large transparency range, spanning the mid-infrared spectrum, makes it a valuable material for infrared detectors, parametric oscillators, and other optoelectronic devices. TAS is especially useful in applications that require fast response times due to its high-speed electro-optic effect. However, handling and processing TAS should be approached with caution, as both thallium and arsenic are highly toxic.

RefractiveIndex.INFO

Optical constants of Tl₃AsSe₃ (Thallium arsenic selenide, TAS)
Ewbank et al. 1980: n(e) 2–12 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

Thallium arsenic selenide, Tl₃AsSe₃ (TAS)

Optical constants of Tl3AsSe3 (Thallium arsenic selenide, TAS)Ewbank et al. 1980: n(e) 2–12 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

Thallium arsenic selenide, Tl3AsSe3 (TAS)

Optical constants of Tl₃AsSe₃ (Thallium arsenic selenide, TAS)
Ewbank et al. 1980: n(e) 2–12 µm

Thallium arsenic selenide, Tl₃AsSe₃ (TAS)