Abstract
The absorptivity of high-purity grades of silicon (Si) and its reduction by subsequent doping procedures are investigated.
The dielectric data are given for the wide range of frequencies (30 – 330 GHz) and temperatures (30 – 330 K) in comparison with the data set for sapphire. The advanced material performance in high power window applications is discussed taking into account both dielectric properties of the optimized silicon grades and thermal conductivity.
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V.A. Flyagin, A.L.Goldenberg, and V.E. Zapevalov. Advanced Russian Gyrotrons for Plasma Investigations. The 19th Int. Conf. on IR and MM Waves. Japan, 1994, pp. 77–78.
M.Q.Tran at all. Feasibility of EU Home Team on the Manufacture of a Gyrotron for ECRH on ITER. The 19th Int. Conf. on IR & MM Waves. Japan, 1994, pp. 67–68.
H.Haefner, E.Bojarsky, K.Heckert, P.Norajitra, H.Reiser. Liquid nitrogen cooled window for high frequency plasma heating Journal of Nuclear Materials, 212–215, 1994, pp. 1035–1038.
A.Kasugai, K.Yokokura, K.Satamoto, M.Tsuneoka, T.Yamamoto, T.Imai, Y.Saito, K.Ito, T.Yoshiyuki, K.Ebisawa. High power tests of the cryogenic window for millimeter waves. Dig. 19th. Int. Conf. on IR & MM Waves, Sendai (J), 1994, JSAP Cat. Nr. AP941228, pp. 295–6.
P.B.Sushilin, A.Sh.Fix, V.V.Parshin. Perspectives of increasing the gyrotron output window capacity. "Gyrotrons" In. of Apl. Ph. Sc. A. USSR, Gorky, 1989, pp. 181–194.
B.M.Garin. Russian Conf. Dielectric-93, St. Petersburg, 1993.
M.N. Afsar, H. Chi. Millimeter wave complex refractive index, complex dielectric permittivity and loss tangent of extra high purity and compensated silicon, Int. J. of IR & MM Waves, 15(7), 1994, pp. 1181–1188.
R. Heidinger, A. Kumlin. Frequency and temperature dependence of the MM-wave dielectric properties of silicon with high d.c.resistivity. Digest of 14th Int. Conf. on IR & MM Waves. Florida, 1990. VSPIE, V.1576, pp. 274–278.
V.V. Parshin. Dielectric materials for gyrotron output windows. Int. J. of IR & MM Waves. Vol.15, N.2. 1994, pp. 339–348.
V.V. Parshin, V.N. Shastin. The non contactive technique for investigations of high purity semiconductors in MM range of wavelengths. Int. Symp. "Physics & Engineering of MM and SubMM Waves" Kharkov, Ukrane. vol.3, 1994, pp. 656–658.
R. Heidinger, A. Kumlin. The impact of extrinsic conductivity on the mm-wave dielectric loss in high resistivity silicon. Dig. 16th Int. Conf. of IR & MM Waves, Lausanne (CH), 1991, SPIE Vol. 1576, pp. 450–1.
Yu.A. Dryagin, V.V. Parshin. A metod to measure dielectric parameters in 5-0,5 MM wavelength band. Int. J. of IR & MM Waves. 1992, Vol. 13, N.7, pp. 1023–1032.
R. Heidinger, G. Link. Dielectric loss measurements between 25–300 K with a hemispherical Fabry-Perot resonator. Dig. 18th Int. Conf. of IR & MM Waves. Colchester (UK), 1993, SPIE V. 2104, pp. 64–65.
C.T. Sah, L. Forbes, L.L. Rosier, A.F. Tasch. Solid-St. Electron. 1970, Vol. 13, p. 759.
B.A. Andreev, V.B. Ikonnikov, E.B. Kozlov, T.M. Lifshits, V.B. Shmagin. Materials Science Forum, V. 143-147. 1994, pp. 1365–1370.
D.V. Lang. J. Apply. Phys. V.45. N.7, 1974, pp. 3023–3032.
A.G. Milns. Deep impurities in semiconductors. New York, Wiley Interscience (1973).
J.Molla, A.Ibarra, R.Heidinger, E.R.Hodgson. Electron-irradiated silicon: An optimized material for gyrotron windows. J. of Nuclear Materials, 1994, in press.
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Parshin, V.V., Heidinger, R., Andreev, B.A. et al. Silicon as an advanced window material for high power gyrotrons. Int J Infrared Milli Waves 16, 863–877 (1995). https://doi.org/10.1007/BF02066662
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DOI: https://doi.org/10.1007/BF02066662