BLOCH AMPLITUDES AND ENERGY OF SLOW LIGHT IN A TAPERED GRATING
2006 ◽
Vol 15
(03)
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pp. 381-400
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Band Gap
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Bloch amplitudes and energy density for traveling and standing waves in an apodized grating at frequencies just outside the band gap are investigated. On the basis of exact coupled mode equations for the local Bloch amplitudes, based on the transfer matrix of the grating units, the concept of local reflectance is developed. This concept appears to be particularly useful to find upper and lower bounds on amplitudes and energy density. Analytical results are tested numerically for a polynomial apodization profile.
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2009 ◽
Vol 139
(4)
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pp. 685-708
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