Precise measurement of optical constants of Si for short-wavelength far-infrared region

2006 ◽  
Author(s):  
K. Nakayama ◽  
S. Okajima ◽  
H. Ohkuma ◽  
K. Kawahata ◽  
K. Tanaka ◽  
...  
Keyword(s):  
Short Wavelength ◽  
Optical Constants ◽  
Precise Measurement ◽  
Far Infrared ◽  
Infrared Region

Development of short-wavelength far-infrared lasers and measurement of optical constants

2005 ◽  
Vol 153 (3) ◽  
pp. 1-8 ◽  
Author(s):  
Kazuya Nakayama ◽  
Hisaki Tazawa ◽  
Shigeki Okajima ◽  
Kazuo Kawahata ◽  
Kenji Tanaka ◽  
...  
Keyword(s):  
Short Wavelength ◽  
Optical Constants ◽  
Far Infrared ◽  
Infrared Lasers ◽  
Far Infrared Lasers

Characteristics of GaAs Schottky Barrier Diode in Short Wavelength Far Infrared Region and the Application

2012 ◽  
Vol 132 (9) ◽  
pp. 722-726
Author(s):  
Kazuya Nakayama ◽  
Shigeki Okajima ◽  
Kazuo Kawahata ◽  
Kenji Tanaka ◽  
Tsuyoshi Akiyama
Keyword(s):  
Schottky Barrier ◽  
Short Wavelength ◽  
Far Infrared ◽  
Infrared Region ◽  
Schottky Barrier Diode

Optical constants of metal oxides in the far infrared region

1976 ◽  
Vol 15 (4) ◽  
pp. 859 ◽  
Author(s):  
Donald R. Smith ◽  
Ernest V. Loewenstein
Keyword(s):  
Metal Oxides ◽  
Optical Constants ◽  
Far Infrared ◽  
Infrared Region

Optical Constants of Cuprous Halide Crystals in the Far-Infrared Region at 2 K

1981 ◽  
Vol 50 (5) ◽  
pp. 1579-1586 ◽  
Author(s):  
Takao Nanba ◽  
Keiichi Hachisu ◽  
Mikihiko Ikezawa
Keyword(s):  
Optical Constants ◽  
Far Infrared ◽  
Infrared Region

Optical constants of InSe and In4Se3 thin films in the far infrared region

2000 ◽  
Vol 51-52 ◽  
pp. 645-657 ◽  
Author(s):  
N. Benramdane ◽  
A. Bouzidi ◽  
H. Tabet-derraz ◽  
Z. Kebbab ◽  
M. Latreche
Keyword(s):  
Thin Films ◽  
Optical Constants ◽  
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.

Measurement of far-infrared optical constants by ATR

1985 ◽  
Vol 6 (4) ◽  
pp. 287-306 ◽  
Author(s):  
S. Ikawa ◽  
T. Ohba ◽  
S. Tanaka ◽  
Y. Morimoto ◽  
K. Fukushi ◽  
...  
Keyword(s):  
Optical Constants ◽  
Far Infrared
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