Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Log inSign up
Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Blog
Job Board
Q3AS

© 2026 Aqora Quantum S.A.S.

TermsPrivacyLegal Notice

Conference on Lasers and Electro-Optics Pacific Rim (CLEO-PR)

Solid hydrogen: novel work medium in optical physics

K. Hakuta

Published Nov 13, 2002• 0 citations
Publisher

Abstract

We describe how solid hydrogen can open new perspectives in optical physics via electromagnetically induced transparency (EIT) for far-off-resonance systems. We show that by using a solid-hydrogen crystal the restriction of phasematching can be removed from nonlinear parametric Raman processes and also that the group velocity of light can be slowed down by many orders.

DOI
10.1109/cleopr.2001.971109

Related papers

Sideband generation using strongly coupled Raman coherence in solid hydrogen

Jian Liang, M. Katsuragawa, Fam Le Kien +1 more

Summary form only given. There has been increasing interest in optical processes using strong-coupling and induced transparency, termed electromagnetically induced transparency (EIT). Although the idea of EIT started for resonant /spl and/h-scheme (Raman scheme), the idea has now been extended to far-off resonance Raman system. We have reported the spontaneous evolution of strong-coupling through stimulated Raman scattering (SRS) using solid hydrogen. In the present work, we extend the strong-coupling SRS to a more general parametric Raman sideband generation. We show using solid hydrogen as a test medium that, in tile far-off resonance Raman scheme, the strongly-coupled Raman coherence can beat with very broad-band laser radiation and can efficiently copy the broadband nature to Raman sidebands without restriction of the phase-matching, and that this efficient copying occurs on the negative Raman detuning for which the strongly-coupled eigenstate evolves to the anti-phased state (dark state).

Quantum Electronics and Laser Science Conference•May 7, 2000•0 citations

Slow light produced by stimulated Raman scattering in solid hydrogen

Jian Liang, M. Katsuragawa, Fam Le Kien +1 more

Summary form only given. Recently, considerable attention has been drawn to extremely slow light obtained in the conditions of electromagnetically induced transparency. The reason is that slow light may lead to exceptionally large nonlinearities and, in particular, to efficient nonlinear processes at energies of a few photons per atomic cross section. Extremely low group velocities of light have been observed in resonant systems such as a Bose-Einstein condensate of ultracold sodium atoms or hot rubidium vapors. Meanwhile, there is a large number of nonlinear optical techniques based on nonresonant interaction. Therefore, it is desirable to study the possibility of slow light in far-off-resonance media. In the present work, we demonstrate experimentally that far-off-resonance stimulated Raman scattering in solid hydrogen driven by a strong coupling field allows us to slow down the intensity-peak velocity of the Stokes and antiStokes fields.

Quantum Electronics and Laser Science Conference•Nov 13, 2002•1 citation

Nonlinear optics in solid hydrogen

M. Katsuragawa, Masaru Suzuki, R.S.D. Sihombing +2 more

We show through experiments of stimulated Raman scattering how solid hydrogen (parahydrogen) can open new perspectives on nonlinear optics. Two phenomena are described: One is the self-induced phase matching in parametric anti-Stokes stimulated Raman scattering (SRS) in which the phase matching is self-organized automatically without the stringent restriction of refractive-index dispersion of the medium, and the other is the extremely slow coherence decay behavior for the Raman transition that may result in the Raman width of 80 kHz full width at half maximum (FWHM).

Laser and Particle Beams•Dec 1, 1998•0 citations

Slow light in a far-off-resonance Raman medium

Jian Liang, M. Katsuragawa, Fam Le Kien +1 more

In this paper, we demonstrate experimentally that far-off-resonance stimulated Raman scattering in solid hydrogen driven by a strong coupling field allows us to slow down the intensity-peak velocity of the Stokes and anti-Stokes fields to order of c/lOOOO. We also observe the signature of the splitting between the normal modes which propagate with different group velocities.

Conference on Lasers and Electro-Optics Pacific Rim (CLEO-PR)•Nov 13, 2002•0 citations

Stimulated Raman scattering in solid hydrogen

K. Hakuta

Summary form only given.We show using solid hydrogen as a medium that strong coupling can be realized for a high-density solid medium even under far-off-resonant conditions. It is shown through the experiments of stimulated Raman scattering (SRS) that in terms of the parametric anti-Stokes generation process, the phase matching is self-induced without the stringent restriction of the medium as a consequence of the strong coupling spontaneously established through the SRS process.

Conference on Lasers and Electro-Optics•Jan 1, 1998•1 citation

Dark state coherence and stimulated Raman scattering in solid hydrogen

K. Hakuta

The purpose of the present paper is to show through experiments of stimulated Raman scattering (SRS) how the solid hydrogen (para-hydrogen) can open new perspectives on laser physics. We discuss the following two topics: one is the self-induced phase-matching in parametric anti-Stokes SRS in which the phase-matching is self-organized automatically without the stringent restriction of refractive-index dispersion of the medium, and the other is the control of the strongly-coupled Raman-coherence using two lasers.

Conference on Lasers and Electro-Optics Pacific Rim (CLEO-PR)•Jan 20, 2003•0 citations
We describe how solid hydrogen can open new perspectives in optical physics via electromagnetically induced transparency (EIT) for far-off-resonance systems. We show that by using a solid-hydrogen crystal the restriction of phasematching can be removed from nonlinear parametric Raman processes and also that the group velocity of light can be slowed down by many orders.
Summary form only given. There has been increasing interest in optical processes using strong-coupling and induced transparency, termed electromagnetically induced transparency (EIT). Although the idea of EIT started for resonant /spl and/h-scheme (Raman scheme), the idea has now been extended to far-off resonance Raman system. We have reported the spontaneous evolution of strong-coupling through stimulated Raman scattering (SRS) using solid hydrogen. In the present work, we extend the strong-coupling SRS to a more general parametric Raman sideband generation. We show using solid hydrogen as a test medium that, in tile far-off resonance Raman scheme, the strongly-coupled Raman coherence can beat with very broad-band laser radiation and can efficiently copy the broadband nature to Raman sidebands without restriction of the phase-matching, and that this efficient copying occurs on the negative Raman detuning for which the strongly-coupled eigenstate evolves to the anti-phased state (dark state).
Summary form only given. Recently, considerable attention has been drawn to extremely slow light obtained in the conditions of electromagnetically induced transparency. The reason is that slow light may lead to exceptionally large nonlinearities and, in particular, to efficient nonlinear processes at energies of a few photons per atomic cross section. Extremely low group velocities of light have been observed in resonant systems such as a Bose-Einstein condensate of ultracold sodium atoms or hot rubidium vapors. Meanwhile, there is a large number of nonlinear optical techniques based on nonresonant interaction. Therefore, it is desirable to study the possibility of slow light in far-off-resonance media. In the present work, we demonstrate experimentally that far-off-resonance stimulated Raman scattering in solid hydrogen driven by a strong coupling field allows us to slow down the intensity-peak velocity of the Stokes and antiStokes fields.
We show through experiments of stimulated Raman scattering how solid hydrogen (parahydrogen) can open new perspectives on nonlinear optics. Two phenomena are described: One is the self-induced phase matching in parametric anti-Stokes stimulated Raman scattering (SRS) in which the phase matching is self-organized automatically without the stringent restriction of refractive-index dispersion of the medium, and the other is the extremely slow coherence decay behavior for the Raman transition that may result in the Raman width of 80 kHz full width at half maximum (FWHM).
The purpose of the present paper is to show through experiments of stimulated Raman scattering (SRS) how the solid hydrogen (para-hydrogen) can open new perspectives on laser physics. We discuss the following two topics: one is the self-induced phase-matching in parametric anti-Stokes SRS in which the phase-matching is self-organized automatically without the stringent restriction of refractive-index dispersion of the medium, and the other is the control of the strongly-coupled Raman-coherence using two lasers.