The Optical Properties of Cadmium Telluride in the Far Infrared Region

1961 ◽  
Vol 16 (3) ◽  
pp. 533-537 ◽  
Author(s):  
Akiyoshi Mitsuishi
Keyword(s):  
Optical Properties ◽  
Cadmium Telluride ◽  
Far Infrared ◽  
Infrared Region

scholarly journals Broadband spectroscopy of astrophysical ice analogues

2019 ◽  
Vol 629 ◽  
pp. A112 ◽  
Author(s):  
B. M. Giuliano ◽  
A. A. Gavdush ◽  
B. Müller ◽  
K. I. Zaytsev ◽  
T. Grassi ◽  
...  
Keyword(s):  
Refractive Index ◽  
Optical Properties ◽  
Time Domain ◽  
Complex Refractive Index ◽  
Far Infrared ◽  
Infrared Region ◽  
Thz Radiation ◽  
The Real ◽  
Thz Range ◽  
The Time Domain

Context. Reliable, directly measured optical properties of astrophysical ice analogues in the infrared and terahertz (THz) range are missing from the literature. These parameters are of great importance to model the dust continuum radiative transfer in dense and cold regions, where thick ice mantles are present, and are necessary for the interpretation of future observations planned in the far-infrared region. Aims. Coherent THz radiation allows for direct measurement of the complex dielectric function (refractive index) of astrophysically relevant ice species in the THz range. Methods. We recorded the time-domain waveforms and the frequency-domain spectra of reference samples of CO ice, deposited at a temperature of 28.5 K and annealed to 33 K at different thicknesses. We developed a new algorithm to reconstruct the real and imaginary parts of the refractive index from the time-domain THz data. Results. The complex refractive index in the wavelength range 1 mm–150 μm (0.3–2.0 THz) was determined for the studied ice samples, and this index was compared with available data found in the literature. Conclusions. The developed algorithm of reconstructing the real and imaginary parts of the refractive index from the time-domain THz data enables us, for the first time, to determine the optical properties of astrophysical ice analogues without using the Kramers–Kronig relations. The obtained data provide a benchmark to interpret the observational data from current ground-based facilities as well as future space telescope missions, and we used these data to estimate the opacities of the dust grains in presence of CO ice mantles.

Reststrahlen of Alkali Halides in the Far-Infrared Region

1973 ◽  
Vol 51 (17) ◽  
pp. 1898-1899
Author(s):  
A. F. Leung
Keyword(s):  
Optical Properties ◽  
Harmonic Oscillator ◽  
Alkali Halides ◽  
Far Infrared ◽  
Infrared Region ◽  
Oscillator Model ◽  
Simple Harmonic Oscillator ◽  
Harmonic Oscillator Model

The assumption in deriving the Lyddane–Sachs–Teller relation and the simple harmonic oscillator model do not hold well in the understanding of the optical properties of alkali halides in the far-infrared region.

Far Infrared Optical Properties of Selenium and Cadmium Telluride

1974 ◽  
Vol 13 (5) ◽  
pp. 1164 ◽  
Author(s):  
Edward J. Danielewicz ◽  
Paul D. Coleman
Keyword(s):  
Optical Properties ◽  
Cadmium Telluride ◽  
Far Infrared ◽  
Infrared Optical Properties

Optical Properties of the Quaternary II–VI Mixed Crystals in the Far Infrared Region

1985 ◽  
Vol 128 (2) ◽  
pp. 389-400 ◽  
Author(s):  
V. M. Burlakov ◽  
A. P. Litvinchuk ◽  
V. N. Pyrkov ◽  
G. G. Tarasov ◽  
N. I. Vitrikhovskii
Keyword(s):  
Optical Properties ◽  
Far Infrared ◽  
Infrared Region ◽  
Mixed Crystals
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