Integration of optical pulses by resonant diffraction gratings |
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Authors: | D A Bykov L L Doskolovich V A Soifer |
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Institution: | 1.Image Processing Systems Institute,Russian Academy of Sciences,Samara,Russia |
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Abstract: | The possibility of integrating optical pulses by resonant diffraction gratings has been considered. It has been shown that
a diffraction grating provides integration of the pulse envelope in the vicinity of quasiguided-mode resonances. The integration
is performed with an exponential weight function, whose decay rate is deter-mined by the quality factor of the resonance.
Metallic diffraction gratings for integration of picosecond pulses have been computed. The calculation of the grating eigenmodes
with the use of the scattering-matrix method has shown that the integration is performed in the vicinity of the resonances
corresponding to the excitation of surface plasmon polaritons at the grating boundary. According to the results of numerical
simulation, the integration quality is quite high. |
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