Abstract
We have designed, fabricated, and characterized a guided mode resonance notch filter operating in the technologically vital mid-wave infrared (MWIR) region of the electromagnetic spectrum. The filter provides a bandstop at , with a 12 dB extinction on resonance. In addition, we demonstrate a high transmission background (), less than 6% transmission on resonance, and an ultra-narrow bandwidth transmission notch (). Our filter is optically characterized using angle- and polarization-dependent Fourier transform infrared spectroscopy, and simulated using rigorous coupled-wave analysis (RCWA) with excellent agreement between simulations and our experimental results. Using our RCWA simulations, we are able to identify the optical modes associated with the transmission dips of our filter. The presented structure offers a potential route toward narrow-band laser filters in the MWIR.
© 2017 Optical Society of America
Full Article | PDF ArticleMore Like This
K. J. Lee, Y. H. Ko, N. Gupta, and R. Magnusson
Opt. Lett. 45(16) 4452-4455 (2020)
Antoine Bierret, Grégory Vincent, Julien Jaeck, Jean-Luc Pelouard, Riad Haïdar, and Fabrice Pardo
Opt. Lett. 42(20) 4187-4190 (2017)
Clément Maës, Grégory Vincent, Fernando González-Posada Flores, Laurent Cerutti, Riad Haïdar, and Thierry Taliercio
Opt. Lett. 44(12) 3090-3093 (2019)