Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE

Quantum emission of light by medium with time-dependent refractive index

V. Hizhnyakov, Helle Kaasik

Published Jun 15, 2007• 1 citation

Abstract

Zero-point quantum fluctuations in a medium with oscillation of optical length in time cause spontaneous two-quantum emission of light. This emission is usually very weak, but it strongly enhanced if a resonance condition for frequency and amplitude of the oscillation is fulfilled.

DOI: 10.1117/12.751785

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Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE

Quantum emission of light by medium with time-dependent refractive index

V. Hizhnyakov, Helle Kaasik

Published Jun 15, 2007• 1 citation

Publisher

Abstract

DOI: 10.1117/12.751785

Related papers

Strong two-photon emission by a medium with periodically time-dependent refractive index

V. Hizhnyakov

A two-photon emission of a medium with periodically time-dependent refractive index is considered. The emission results from the zero-point fluctuations of the medium. Usually this emission is very weak. However, it can be strongly enhanced if the resonant condition $ω_0$ = 2.94 $c/l_0$ is fulfilled (here $ω_0$ and $l_0 $ are the frequency and the amplitude of the oscillations of the optical length of the medium, respectively). Besides, a medium with resonant oscillations of the optical length performs the phase conjugated reflection with high efficiency. A similar resonant enhancement of the two-quantum emission of other bosons is also predicted.A two-photon emission of a medium with periodically time-dependent refractive index is considered. The emission results from the zero-point fluctuations of the medium. Usually this emission is very weak. However, it can be strongly enhanced if the resonant condition $ω_0$ = 2.94 $c/l_0$ is fulfilled (here $ω_0$ and $l_0 $ are the frequency and the amplitude of the oscillations of the optical length of the medium, respectively). Besides, a medium with resonant oscillations of the optical length performs the phase conjugated reflection with high efficiency. A similar resonant enhancement of the two-quantum emission of other bosons is also predicted.

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ω_0

= 2.94

c/l_0

is fulfilled (here

ω_0

and $l_0 $ are the frequency and the amplitude of the oscillations of the optical length of the medium, respectively). Besides, a medium with resonant oscillations of the optical length performs the phase conjugated reflection with high efficiency. A similar resonant enhancement of the two-quantum emission of other bosons is also predicted.

10

{}^{\ensuremath{-}2}$ photons per pulse. Moreover, it is, in principle, possible to engineer the host medium so as to modify the effective group refractive index. In the presence of ``fast-light'' media, e.g., a with group index smaller than unity, a further $\ensuremath{\sim}

10

\ifmmode\times\else\texttimes\fi{}$ enhancement may be achieved and the photon emission spectrum is characterized by two sharp peaks that, in future experiments, would clearly identify the correlated emission of photon pairs.