Theory of thermal radiation of non-Hermitian photonic crystals
ORAL
Abstract
We present a theoretical study of thermal radiation of non-Hermitian photonic crystals. We found that lossless photonic crystals can have exceptional points in reciprocal spaces. Such exceptional points manifest sharp crossings in the reflection and transmission spectrums. We develop a scattering matrix formulation to analyze such properties. We calculate and simulate thermal radiation of such a photonic crystal using the methods of fluctuational electrodynamics. Thermal radiation of such a system shows anomalous emission spectrums related to near-filed to far-field couplings.
*J.S.W. thanks support from the National Science and Technology Council under Grant No. 111-2112-M-A49-015-MY3. S.Y.L. and J.H.H. acknowledge partial support from Taiwan’s Department of Education (DOE) through a short-term exchange Yushan scholar program.
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Presenters
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Jhih-Sheng Wu
- Department of Photonics, National Yang Ming Chiao Tung University