An optical probe of a 3D photonic band gap

Research output: Contribution to conferencePoster

Abstract

There is a wide interest in three-dimensional (3D) photonic crystals that radically control the spontaneous emission of embedded quantum emitters and cavity QED, control thermal emission, allow for efficient miniature lasers, or efficient photoelectric conversion in solar cells [1,2]. Curiously, the experimental demonstration of a 3D photonic band gap remains a major challenge. To probe the band gap, spectra or dynamics are studied of emitters positioned inside the crystal, but such experiments are difficult for a number of practical reasons. On the other hand, a band gap is indicated by the overlap of stop bands seen in directional reflectivity or transmission experiments. A reflectivity peak (or transmission trough) may also occur due to other physical reasons. Hence experimentally observed stop bands are typically interpreted by comparing to band structures that, however, only pertain to infinite and perfect crystals. Thus there remains scope for a purely experimental probe of a 3D band gap, especially in view of the unavoidable deviations from perfect periodicity [3].

Original languageEnglish
DOIs
Publication statusPublished - Jun 2019
EventConference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference, CLEO/Europe-EQEC 2019 - Munich Trade Fair Centre, Munich, Germany
Duration: 23 Jun 201927 Jun 2019
http://www.cleoeurope.org

Conference

ConferenceConference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference, CLEO/Europe-EQEC 2019
Abbreviated titleCLEO/Europe-EQEC 2019
CountryGermany
CityMunich
Period23/06/1927/06/19
Internet address

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Keywords

  • 3D photonic band gap

Cite this

Adhikary, M., Uppu, R., Grishina, D., Harteveld, C. A. M., & Vos, W. L. (2019). An optical probe of a 3D photonic band gap. Poster session presented at Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference, CLEO/Europe-EQEC 2019, Munich, Germany. https://doi.org/10.1109/CLEOE-EQEC.2019.8872445