Refractive index of BaGa2GeSe6 (BGGSe)

Optical constants of BaGa₂GeSe₆ (BGGSe)
Kato et al. 2018: n(o) 0.778–10.6 µm

Wavelength: µm

(0.778–10.6)

Complex refractive index (n+ik)[ i ]

Derived optical constants

Dispersion formula [ i ]

$$n^2=7.39367+\frac{0.27086}{λ^2-0.06961}+\frac{1513.10}{λ^2-1237.35}$$

Comments

Ordinary ray (o); room temperature.

References

K. Kato, K. Miyata, V. V. Badikov, V. Petrov. Phase-matching properties of BaGa₂GeSe₆ for three-wave interactions in the 0.778–10.5910 μm spectral range, Appl. Opt., 57, 7440–7443 (2018)

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

BaGa₂GeSe₆ (BGGSe)

BaGa₂GeSe₆ (BGGSe) is a nonlinear optical crystal known for its wide transparency range and phase-matching capabilities in the mid-infrared region. It is particularly effective for frequency conversion applications, such as optical parametric oscillation, due to its high nonlinear optical coefficients. The material's broad phase-matching range and wide transparency window make it ideal for tunable laser systems operating in the mid-infrared spectrum. BGGSe also exhibits a high laser damage threshold, which makes it suitable for high-power applications. However, like many other chalcogenide crystals, it can be sensitive to moisture and requires careful handling and storage to maintain its optical quality. The crystal is typically grown using the Bridgman technique and can be polished into high-quality facets for optimal performance. Overall, BaGa₂GeSe₆ (BGGSe) represents a compelling option for nonlinear optical applications requiring a broad tunability and high power-handling capacity in the mid-infrared region.

RefractiveIndex.INFO

Optical constants of BaGa₂GeSe₆ (BGGSe)
Kato et al. 2018: n(o) 0.778–10.6 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

BaGa₂GeSe₆ (BGGSe)

External links

Optical constants of BaGa2GeSe6 (BGGSe)Kato et al. 2018: n(o) 0.778–10.6 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

BaGa2GeSe6 (BGGSe)

External links

Optical constants of BaGa₂GeSe₆ (BGGSe)
Kato et al. 2018: n(o) 0.778–10.6 µm

BaGa₂GeSe₆ (BGGSe)