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15:25
Design and Characterization Methodology for Efficient Wide Range Tunable MEMS Filters
Published on: February 4, 2018
Pulse deformations at guided-mode resonance filters.
Optics Express
|May 20, 2009
Summary
A short light pulse interacting with periodic dielectric materials dramatically alters its spatial and temporal properties. Reflected and transmitted light pulses spread laterally and decompress temporally due to resonant grating effects.
Area of Science:
- Optics and Photonics
- Materials Science
Background:
- Periodic dielectric structures are crucial in optical devices.
- Understanding light-matter interactions in such materials is key for advanced photonics.
Purpose of the Study:
- To investigate the effects of a short light pulse on a periodic dielectric waveguiding region.
- To analyze the spatial and temporal transformations of light pulses.
Main Methods:
- Simulating the incidence of a short light pulse on a waveguiding region.
- Analyzing the reflected and transmitted pulse components.
- Investigating the influence of pulse width, duration, and grating parameters.
Main Results:
- Observed dramatic changes in the spatial and temporal composition of the light pulse.
- Demonstrated lateral spread and temporal decompression of reflected and transmitted components.
- Showcased dependence on pulse characteristics and resonant grating structure.
Conclusions:
- Periodic dielectric structures significantly modify light pulse characteristics.
- Resonant grating effects are responsible for the observed spatial and temporal pulse alterations.
- The findings have implications for optical pulse shaping and manipulation.
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