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06:25
Time Multiplexing Super Resolving Technique for Imaging from a Moving Platform
Published on: February 12, 2014
A way to super resolution by a sampling method using the spectral properties of one-dimensional multilayer systems
Antonio Mandatori1, Alessio Benedetti, Mario Bertolotti
1Dipartimento SBAI Università La Sapienza di Roma, Italy. antonio.mandatori@gmail.com
Applied Optics
|September 13, 2012
Summary
Researchers explored sampling the evanescent spectrum of objects using photonic bandgaps (PBGs). This method links guide modes to spectral components, showing good agreement between theory and numerical results.
Area of Science:
- Optics and Photonics
- Materials Science
Background:
- Evanescent fields contain sub-wavelength information crucial for high-resolution imaging.
- Photonic bandgap (PBG) structures offer unique control over light propagation.
Purpose of the Study:
- To introduce and analyze a method for sampling the evanescent spectrum of an object using PBGs.
- To investigate the coupling mechanisms between scattered fields and PBG modes.
Main Methods:
- Utilizing a photonic bandgap structure to interact with the evanescent field of a scattering object.
- Analyzing the coupling between the object's scattered field and the PBG modes.
- Comparing numerical simulations with theoretical predictions.
Main Results:
- Demonstrated a method to sample the evanescent spectrum of an object.
- Established a connection between guided modes in the PBG and specific spectral components of the object.
- Observed good agreement between theoretical predictions and numerical simulation results.
Conclusions:
- Photonic bandgap structures can effectively sample evanescent spectra.
- The coupling mechanism provides a pathway to probe sub-wavelength features of objects.
- The validated method holds potential for advanced optical characterization techniques.
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