Abstract
The coupling of light into a waveguide by a surface grating leads to the attenuation of the transmitted beam when the resonant modes of the waveguide are excited. These can be tuned by changing the incident angle or the wavelength. Upon excitation of a mode, the transmitted beam experiences a significant phase shift that can be measured and compared with that predicted by the Kramers–Kronig relations.
© 2007 Optical Society of America
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