Self-organization of excitations in Ge-doped silica fibers and its role in second harmonic generation

B.P. Antonyuk, V.B. Antonyuk
Institute of Spectroscopy, Russian Academy of Sciences, ul. Fizicheskaya 5, Troitsk, Moscow, 108840, Russian Federation

Based on Raman and hyper-Raman scattering experiments and on direct green light absorption measurements, excitations of a new type — charge transfer excitons — are found to exist in Ge-doped silica fibers, whose self-organization (orientation ordering of dipole moments) leads to positive feedback in response to a static electric field. An electric field of 10⁵ V/cm then results breaking the inversion symmetry of the initially centrally symmetric medium and allowing the second harmonic to be generated. Generation persists only at the medium preparation stage and self-switches off upon a transition to the stationary state.

PACS: 42.81.Qb, 61.43.Fs, 72.20.Jv (all)
DOI: 10.1070/PU2001v044n01ABEH000867
URL: https://ufn.ru/en/articles/2001/1/b/
Web of Science

000167145400002
Citation: Antonyuk B P, Antonyuk V B "Self-organization of excitations in Ge-doped silica fibers and its role in second harmonic generation" Phys. Usp. 44 53–70 (2001)

BibTexBibNote ® (generic)BibNote ® (RIS)MedlineRefWorks

Оригинал: Антонюк Б П, Антонюк В Б «Самоорганизация возбуждений в германосиликатных волоконных световодах и ее роль в генерации второй гармоники» УФН 171 61–78 (2001); DOI: 10.3367/UFNr.0171.200101b.0061

References (35) Cited by (21) Similar articles (20) ↓

B.Kh. Bairamov, V.A. Voitenko, I.P. Ipatova “Light scattering from electron-density fluctuations in multivalley semiconductors and metals” 36 (5) 392–435 (1993)
I.V. Kukushkin, S.V. Meshkov, V.B. Timofeev “Two-dimensional electron density of states in a transverse magnetic field” 31 511–534 (1988)
V.A. Gritsenko “Hot electrons in silicon oxide” 60 902–910 (2017)
B.P. Zakharchenya, D.N. Mirlin et al “Spectrum and polarization of hot-electron photoluminescence in semiconductors” 25 143–166 (1982)
F.I. Ataullakhanov, V.I. Zarnitsyna et al “A new class of stopping self-sustained waves: a factor determining the spatial dynamics of blood coagulation” 45 619–636 (2002)
G.A. Malygin “Dislocation self-organization processes and crystal plasticity” 42 887 (1999)
A.V. Gurevich, R.G. Mints “Localized waves in inhomogeneous media” 27 19–41 (1984)
E.F. Sheka “Spectroscopy of amorphous substances with molecular structure” 33 (2) 147–166 (1990)
V.A. Shklovskii, V.M. Kuz’menko “Explosive crystallization of amorphous substances” 32 163–180 (1989)
T.V. Tropin, Ju.W.P. Schmelzer, V.L. Aksenov “Modern aspects of the kinetic theory of glass transition” 59 42–66 (2016)
S.A. Akhmanov, V.A. Vysloukh, A.S. Chirkin “Self-action of wave packets in a nonlinear medium and femtosecond laser pulse generation” 29 642–647 (1986)
S.P. Andreev “Spectra and kinetics of systems with magnetic-impurity states in a potential with finite range” 27 431–447 (1984)
A.F. Volkov, Sh.M. Kogan “Physical phenomena in semiconductors with negative differential conductivity” 11 881–903 (1969)
E.L. Stolyarova “Semiconductor detectors of nuclear radiation” 6 872–887 (1964)
Yu.E. Perlin “Modern methods in the theory of many-phonon processes” 6 542–565 (1964)
M.V. Fok “ELECTROLUMINESCENCE” 3 832–839 (1961)
E.Yu. Kokorish, N.N. Sheftal’ “Dislocations in semiconductor crystals” 3 840–849 (1961)
G.M. Guro “Characteristic times of electronic processes in seminconductors” 3 895–911 (1961)
V.S. Vavilov “Radiative recombination in semiconductors” 2 455–464 (1959)
Ya.S. Bobovich, T.P. Tulub “Raman spectra and structure of certain inorganic types of glass” 1 1–28 (1958)

The list is formed automatically.