Ultranarrow resonance peaks in the transmission and reflection spectra of a photonic crystal cavity with Raman gain


Тип публикации: статья из журнала

Год издания: 2009

Идентификатор DOI: 10.1103/PhysRevA.80.061802

Ключевые слова: Group velocities, Narrow resonances, Nonlinear refractive index, One dimensional photonic crystal, Photonic crystal cavities, Probe field, Probe light, Probe waves, Pump intensities, Raman gain, Raman resonances, Raman transition, Reflection spectra, Resonance peak, Transmission and reflection coefficient, Transmission spectrums, Fluorine containing polymers, Probes, Pumps, Reflection, Refractive index, Resonance, Photonic crystals

Аннотация: The Raman gain of a probe light in a three-state Lambda scheme placed into a defect of a one-dimensional photonic crystal is studied theoretically. We show that there exists a pump intensity range, where the transmission and reflection spectra of the probe field exhibit simultaneously occurring narrow peaks (resonances) whose positПоказать полностьюion is determined by the Raman resonance. Transmission and reflection coefficients can be larger than unity at pump intensities on the order of tens of mu W/cm(2). When the pump intensity is outside this region, the peak in the transmission spectrum turns into a narrow dip. The nature of narrow resonances is attributed to a drastic dispersion of the nonlinear refractive index in the vicinity of the Raman transition, which leads to a significant reduction in the group velocity of the probe wave.

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Выпуск журнала: Vol. 80, Is. 6

ISSN журнала: 10502947

Место издания: COLLEGE PK