Results 301 to 310 of about 610,136 (345)
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Physics Bulletin, 1972
K D Moller and W G Rothschild London: John Wiley 1971 pp xix + 979 price £1425 This book gives a comprehensive review of experimental techniques and results in far infrared spectroscopy. Both diffraction grating and Fourier transform experimental techniques are described.
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K D Moller and W G Rothschild London: John Wiley 1971 pp xix + 979 price £1425 This book gives a comprehensive review of experimental techniques and results in far infrared spectroscopy. Both diffraction grating and Fourier transform experimental techniques are described.
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1996
Infrared spectroscopy (spectral range 10 to 10000 cm−1) has played an important role for the characterisation of epitaxial layers since the early days of epitaxial growth. Infrared transmission and reflection spectra yield information on electric dipole allowed elementary excitations.
Bernd Harbecke +3 more
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Infrared spectroscopy (spectral range 10 to 10000 cm−1) has played an important role for the characterisation of epitaxial layers since the early days of epitaxial growth. Infrared transmission and reflection spectra yield information on electric dipole allowed elementary excitations.
Bernd Harbecke +3 more
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Far-infrared CH_3F Stark laser
Optics Letters, 1979A rectangular metal–dielectric far-infrared waveguide laser has been operated on the individual Stark components of CH3F by the application an electric field across the laser medium. The results agree well with theoretical predictions.
INGUSCIO, MASSIMO +5 more
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Infrared Physics, 1976
Abstract Two far i.r. lines from a pulsed helium laser have been accurately measured with a metal grid Fabry-Perot interferometer at wavelengths of 95.763 ± 0.006 μm and 216.12 ± 0.01μm. The laser output critically depends on the plasma conditions in the laser during the excitation phase.
R. TURNER, R.A. MURPHY
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Abstract Two far i.r. lines from a pulsed helium laser have been accurately measured with a metal grid Fabry-Perot interferometer at wavelengths of 95.763 ± 0.006 μm and 216.12 ± 0.01μm. The laser output critically depends on the plasma conditions in the laser during the excitation phase.
R. TURNER, R.A. MURPHY
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Prospects for far infrared arrays
Experimental Astronomy, 1994We report initial performance measurements of a 1/8 scale version of a 32x32 pixel array under development for SIRTF. This array demonstrates that we can reach the sensitivity limits set by the natural backgrounds in space while providing good imaging and photometric performance.
G. H. Rieke, E. T. Young
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Non-polarizing far-infrared filters
Infrared Physics, 1982Abstract Polyethylene embedded with glass microspheres has shown the same optical properties as Fluorogold™ in the far-infrared. The polarizing properties of Fluorogold (laminated in thin foils) are avoided by pressing the polyethylene/glass powder between hot plates.
G. Dall' Oglio +3 more
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Far-infrared properties of DAST
Optics Letters, 2000Using terahertz time-domain spectroscopy, we have measured the index of refraction and the absorption coefficient of the organic ionic salt 4-N, N-dimethylamino-4?-N?-methyl-stilbazolium tosylate (DAST). This promising organic electro-optic material exhibits strong absorption and dispersion for frequencies above 1 THz at both room temperature and 83 K.
Walther, Markus +4 more
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1974
One of the exciting Challenges in recent years was to develop a coherent radiation source which would bridge the energy region between the infrared and the microwaves. We have achieved this objective with the use of two high power CO2 TEA lasers and a non-collinear phase matching technique in a crystal of GaAs.1 Our results represent one of several ...
Benjamin Lax, R. L. Aggarwal
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One of the exciting Challenges in recent years was to develop a coherent radiation source which would bridge the energy region between the infrared and the microwaves. We have achieved this objective with the use of two high power CO2 TEA lasers and a non-collinear phase matching technique in a crystal of GaAs.1 Our results represent one of several ...
Benjamin Lax, R. L. Aggarwal
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1962
According to current practice the far-infrared region is considered to be that part of the electromagnetic spectrum between the sodium chloride prism cutoff (about 15 μ) and the wavelengths at which microwave techniques may be successfully employed. The farinfrared region tends to be pushed continually to longer wavelengths by the development of better
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According to current practice the far-infrared region is considered to be that part of the electromagnetic spectrum between the sodium chloride prism cutoff (about 15 μ) and the wavelengths at which microwave techniques may be successfully employed. The farinfrared region tends to be pushed continually to longer wavelengths by the development of better
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InP colloidal quantum dots for visible and near-infrared photonics
Nature Reviews Materials, 2023Guilherme Almeida
exaly