| Issue |
EPJ Web Conf.
Volume 335, 2025
EOS Annual Meeting (EOSAM 2025)
|
|
|---|---|---|
| Article Number | 05004 | |
| Number of page(s) | 2 | |
| Section | Topical Meeting - Nanophotonics | |
| DOI | https://doi.org/10.1051/epjconf/202533505004 | |
| Published online | 22 September 2025 | |
https://doi.org/10.1051/epjconf/202533505004
Fabrication of 3D photonic band gap crystals for controlling the emission of light
1 Complex Photonic Systems (COPS), MESA+ Institute for Nanotechnology, University of Twente, Enschede, The Netherlands
2 MESA+ Nanolab, University of Twente, Enschede, The Netherlands
* Corresponding author: This email address is being protected from spambots. You need JavaScript enabled to view it.
Published online: 22 September 2025
Abstract
3D photonic band gap crystals can be used to manipulate light, for example to increase the emission of an emitter. An inverse woodpile photonic band gap crystal has been fabricated in silicon by FIB lithography and reactive ion etching. The resulting photonic crystal was then infiltrated with quantum dots in toluene which emit above the photonic band gap. Quantum dots inside the photonic crystal emit with 24 times more intensity than quantum dots outside the crystal and also exhibit a 7 times increase in emission speed.
© The Authors, published by EDP Sciences, 2025
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