RefractiveIndex.INFO Refractive index database




Optical constants of Ti (Titanium)
Ordal et al. 1988 - n,k 0.667-200 µm

Wavelength: µm
 (0.667 – 200)  

Refractive index[ i ]

n =

Extinction coefficient[ i ]

k =

Other optical constants

Dielectric constants[ i ]

ϵ1 =
ϵ2 =

Absorption coefficient[ i ]   [ i ]

α = cm-1

Chromatic dispersion[ i ]

dn/dλ = µm-1
n   k   log   eV


"We have used a nonresonant cavity to measure, at room temperature, the angle averaged absorptance spectra P(ω) of aluminum, molybdenum, tantalum, titanium, tungsten, and iron in the 30-300-cm-1 wavenumber region. The real part of the normalized surface impedance spectrum, z(ω) = r(ω) + ix(ω), was determined from P(ω). Measurements were also made on iron from 400 to 4000 cm-1 using standard reflectance techniques. The r(ω) spectrum was combined with previous measurements by others at higher frequencies and Kramers-Kronig analyses of the resultant combined r(ω) spectra provided ε(ω) = ε1(ω) + 2(ω) and N(ω) = n(o) + ik(ω)."


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M. A. Ordal et al. Optical properties of Al, Fe, Ti, Ta, W, and Mo at submillimeter wavelengths, Appl. Opt. 27, 1203-1209 (1988)

Optical transmission calculator

Calculation method: 

Transmittance (at  µm)[ i ]

T =

Reflection calculator

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

Reflectance (at µm)[ i ]

RS = (S-polarized)
RP = (P-polarized)
R = (non-polarized, (RS+RP)/2 )

Reflection phase[ i ]

ɸ = °
ɸS = °
ɸP = °

Brewster's angle[ i ]

θB = °

Critical angle[ i ]   [ i ]

θC = °

More info - wiki

Titanium, Ti

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