Quantum Electronics

Nonlinear mixing in the presence of transparency induced by an additional strong field

Vasily G. Arkhipkin

Published Jan 31, 1995• 3 citations

Abstract

It is shown that the use of additional strong laser radiation may result in a resonant increase of the nonlinear susceptibility in the generation of the sum frequency and harmonics, and it may also reduce the absorption of the generated radiation near the centres of the Stark-split components. The phase-matching conditions are also satisfied near these centres. The conversion efficiency is two or three orders of magnitude higher than in the absence of an additional strong radiation field.

DOI: 10.1070/qe1995v025n01abeh000289

Related papers

Fully resonant three-wave mixing in isotropic media under induced transparency conditions

Vasily G. Arkhipkin, V. Yu. Apanovich

A theoretical investigation is reported of three-wave frequency mixing under simultaneous single-photon and two-photon resonance conditions when one of the fields being mixed is weak and the other is strong. A study is made of the influence of the field splitting on the nonlinear susceptibility in the case of homogeneously and Doppler-broadened transitions. An analysis is made of the role played by interference between quantum transitions via quasilevels in absorption and generation, and of its influence on mixing. It is shown that significant enhancement of the nonlinear generation efficiency is possible in optically dense media.

Quantum ElectronicsApr 30, 19970 citations

Resonant Raman frequency mixing under electromagnetically induced transparency conditions

Vasily G. Arkhipkin

A fully resonant process of Raman mixing of the frequencies of one weak and two strong laser radiations is considered. A study is made of the influence of dynamic (field) splitting of the levels and of quantum interference on nonlinear processes, including the propagation and attenuation of weak pump radiation and of the generated radiation. It is shown that efficient nonlinear frequency mixing is possible in electromagnetically induced transparency regions.

Quantum ElectronicsApr 30, 19973 citations

Efficient sum-frequency mixing through transparency induced by autoionization

Takashi Nakajima

It is shown that efficient sum-frequency mixing is possible through transparency induced by autoionization. Tuning the incident laser frequencies to the absorption minimum of an autoionizing resonance for the generated wave greatly reduces the linear absorption of the generated wave while third-order susceptibility is still enhanced. The proposed scheme does not require any strong radiative couplings and would be particularly useful for the generation of short-wavelength radiation.

Optics LettersJan 15, 20022 citations

Resonant three-wave mixing in isotropic media using induced transparency

Vasily G. Arkhipkin, V. Y. Apanonich

Three-wave frequency mixing is theoretically investigated under simultaneous single- and two-photon resonances; one of the fundamental fields is weak while another one is strong. The influence of field splitting on nonlinear susceptibility is studied for both homogeneously- and Doppler-broadened transitions. We analyzed the role of interference of quantum transitions via quasilevels in absorption and nonlinear generation and its impact on mixing process. The possibility of significant enhancement of nonlinear generation efficiency in optically dense media is demonstrated.

Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIEOct 21, 19980 citations

Nonlinear generation of 103 nm radiation with electromagnetically-induced transparency in atomic hydrogen

R. I. Thompson, Boris Peter Stoicheff, G Z Zhang +1 more

Four-wave mixing in atomic hydrogen with the generation of coherent Lyman- beta radiation at 102.6 nm was investigated experimentally and theoretically in the low density limit. We demonstrate that in this doubly-resonant system, the application of intense laser radiation to strongly couple the 2s and 3p levels causes transparency in the 3p from 1s transition, leading to reduced absorption of the generated Lyman- beta radiation, and to increased conversion efficiency.

Quantum Optics Journal of the European Optical Society Part BAug 1, 199412 citations

Nonlinear optical generation with electromagnetically induced transparency in atomic hydrogen

K. Hakuta, G. Z. Zhang, Masayoshi Ohta +2 more

Nonlinear optical generation using electromagnetically induced transparency is demonstrated for the first time. An atomic hydrogen is used as a test atom. By applying a strong‐coupling laser field to the 3p‐2s transition, the resonant 3p‐1s transition becomes transparent with keeping the resonantly enhanced value on the nonlinear susceptibility. The generated sum‐frequency radiation at 103 nm can grow without suffering from the resonant absorption and phase‐mismatching.

AIP conference proceedingsJan 1, 19930 citations