Wavelength- and angle-resolved technique for determining the energy-momentum diagram of photonic systems

J. Lee; M. Bertilson; D. J. Stowe

doi:10.1117/12.2594328

7 September 2021 Wavelength- and angle-resolved technique for determining the energy-momentum diagram of photonic systems

J. Lee, M. Bertilson, D. J. Stowe

Author Affiliations +

Proceedings Volume 11815, Novel Optical Systems, Methods, and Applications XXIV; 1181509 (2021) https://doi.org/10.1117/12.2594328
Event: SPIE Optical Engineering + Applications, 2021, San Diego, California, United States

Abstract

The photonic band structure of plasmonic and nanophotonic materials and devices can be controlled by physical features much smaller than the optical diffraction limit. We present a methodology to correlate nanoscale structure to the photonic band structure directly using the cathodoluminescence (CL) signal generated by a sample in the scanning electron microscope. Further to conventional electron microscope imaging, we record the wavelength- and angular- distributions of luminescence in a highly-parallelized manner. The result is a wavelength- and angle- resolved data cube, which was transformed to observe the emission intensity in the energy-momentum basis revealing the photonic band structure.

Conference Presentation

Citation Download Citation

J. Lee, M. Bertilson, and D. J. Stowe "Wavelength- and angle-resolved technique for determining the energy-momentum diagram of photonic systems", Proc. SPIE 11815, Novel Optical Systems, Methods, and Applications XXIV, 1181509 (7 September 2021); https://doi.org/10.1117/12.2594328

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