Photon lifetime in a cavity containing a slow-light medium

Lauprêtre, T.; Proux, C; Ghosh, R.; Schwartz, Sylvain; Goldfarb, Fabienne; Bretenaker, Fabien

doi:10.1364/ol.36.001551

Cited by 34 publications

(29 citation statements)

References 19 publications

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“…Such a quantity is frequently used in the laser physics to express the resonator finesse [37,39,52] as well as to provide a good estimation of the Winger time, as explained in many different situations [51,[53][54][55][56][57]. Although lifetime and group delay are different concepts, they are intimately related.…”

Section: B Wigner Time and Photon Lifetimementioning

confidence: 99%

Giant gain enhancement in photonic crystals with a degenerate band edge

et al. 2016

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We propose a new approach leading to giant gain enhancement. It is based on unconventional slow wave resonance associated to a degenerate band edge (DBE) in the dispersion diagram for a special class of photonic crystals supporting two modes at each frequency. We show that the gain enhancement in a Fabry-Pérot cavity (FPC) when operating at the DBE is several orders of magnitude stronger when compared to a cavity of the same length made of a standard photonic crystal with a regular band edge (RBE). The giant gain condition is explained by a significant increase in the photon lifetime and in the local density of states. We have demonstrated the existence of DBE operated special cavities that provide for superior gain conditions for solid-state lasers, quantum cascade lasers, traveling wave tubes, and distributed solid state amplifiers. We also report the possibility to achieve low-threshold lasing in FPC with DBE compared to RBEbased lasers.

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Section: B Wigner Time and Photon Lifetimementioning

confidence: 99%

Giant gain enhancement in photonic crystals with a degenerate band edge

et al. 2016

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“…In the case of positive dispersion of figure 1(1b), i.e. slow light, we have recently shown [19] that the lifetime of the field in the cavity is given as expected by τ cav = τ RT g / , where stands for the fractional loss per cavity round trip, and τ RT g = τ g + L vac /c is the group delay for one round trip inside the cavity with L vac , the length of the empty part of the cavity. In this case, the reduced decay rate for the intracavity intensity can be explained in terms of a simple picture of a pulse propagating at the group velocity inside the cavity and decaying at each round trip because of losses (see the decaying pulses of figure 1(1c)).…”

Section: Introductionmentioning

confidence: 92%

“…The cell is inserted inside a 2.4 m long triangular ring cavity made of two plane mirrors with 2% transmission and a high-reflectivity concave mirror with a 5 m radius of curvature. The cavity is resonant only for the probe field as two polarization beam-splitters drive the coupling beam inside and outside the cavity [19] (see figure 4).…”

Section: Experiments With Detuned Electromagnetically Induced Transpamentioning

confidence: 99%

Anomalous ring-down effects and breakdown of the decay rate concept in optical cavities with negative group delay

et al. 2012

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The propagation of light pulses through negative group velocity media is known to give rise to a number of paradoxical situations that seem to violate causality. The solution of these paradoxes has triggered the investigation of a number of interesting and unexpected features of light propagation. Here, we report a combined theoretical and experimental study of the ringdown oscillations in optical cavities filled with a medium with a sufficiently negative frequency dispersion to give a negative round-trip group delay time. We theoretically anticipate that causality imposes the existence of additional resonance peaks in the cavity transmission, resulting in a non-exponential decay of the cavity field and in a breakdown of the cavity decay rate concept. Our predictions are validated by simulations and by an experiment using a roomtemperature gas of metastable helium atoms in the detuned electromagnetically induced transparency regime as the cavity medium.

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“…21,22 Either passive cavities 23 or resonators containing different types of nonlinear media have been considered, as photorefractive crystals 24,25 or atomic vapors. 26 Generally, when wave-mixing occurs in a nonlinear and non instantaneous medium, the resonance induces a dispersive behavior that is responsible for slow and fast-light effects while, at the same time, the beam coupling provides an optical amplification mechanism, i.e., gain, that can be used to transfer photons inside a cavity.…”

Section: Self-pulsing Induced By Doppler Shift In a Cavity Containingmentioning

confidence: 99%

Slow-light through wave-mixing in liquid crystal light-valves and interferometric applications

Residori

Bortolozzo

Huignard³

2012

Advances in Slow and Fast Light V

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We present the nonlinear optical properties of liquid crystal light-valves and wave-mixing experiments from which slow-light effects are obtained. Group velocities as low as fractions of mm/s are achieved, the corresponding group index becoming very large. We show how this property that can be exploited to realize interferometric systems, for instance, an enhanced sensitivity Mach-Zehnder interferometer containing the light-valve as a slowlight medium is shown. Then, we present a common-path polarization interferometer based on the anisotropic character of the slow-light process occurring in the light-valve. Finally, we present a nonlinear optical cavity where a Doppler shift is introduced by the controlled displacement of one of the mirrors. Self-pulsing is obtained in the cavity due to the strongly dispersive response of the light-valve.

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Photon lifetime in a cavity containing a slow-light medium

Cited by 34 publications

References 19 publications

Giant gain enhancement in photonic crystals with a degenerate band edge

Giant gain enhancement in photonic crystals with a degenerate band edge

Anomalous ring-down effects and breakdown of the decay rate concept in optical cavities with negative group delay

Slow-light through wave-mixing in liquid crystal light-valves and interferometric applications

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