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arXiv · 1011.5059

Bragg Reflection Waveguide: Anti-Mirror Reflection and Light Slowdown

G. G. Kozlov·V. S. Zapasskii·Yu. V. Kapitonov·V. V. Ovsyankin
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Abstract

The effect of the light group velocity reduction in dielectric Bragg reflection waveguide structures (SiO$_2$/TiO$_2$) in the vicinity of the cutoff frequency is studied experimentally. The effect of anti-mirror reflection, specific for the Bragg reflection waveguides, is described and employed for detection of "slow light". The experiments were performed with the use of the Ti:sapphire laser pulses ~ 100 fs in length. The group index $n_g \sim$ 30 with a fractional pulse delay (normalized to the pulse width) of $\sim$ 10 is demonstrated. The problems and prospects of implementation of the slow-light devices based on the Bragg reflection waveguide structures are discussed.

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G. G. Kozlov, V. S. Zapasskii, Yu. V. Kapitonov, V. V. Ovsyankin. 2010-11-24. Bragg Reflection Waveguide: Anti-Mirror Reflection and Light Slowdown. https://doi.org/10.1134/s0030400x11030143

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