High-performance integrated mid-infrared filter arrays

Autor: Kaylee D. Hakkel, Don M.J. van Elst, Maurangelo Petruzzella, Martin Ebermann, Francesco Pagliano, Anne van Klinken, Andrea Fiore
Přispěvatelé: Photonics and Semiconductor Nanophysics, Eindhoven Hendrik Casimir institute
Jazyk: angličtina
Rok vydání: 2022
Předmět:
Zdroj: Electronics Letters, 58(23), 884-886. Institution of Engineering and Technology (IET)
ISSN: 0013-5194
Popis: A static filter array is developed based on Fabry–Perot cavities operating in the mid-infrared range from 2 to 4.5 µm, matching the absorption region of several gases relevant for air quality monitoring. The filters include two distributed Bragg reflectors and a high-index tuning element with varying thickness in between. The filters display high peak transmittance (>80%) and controllable peak width. The robustness, ease of fabrication and the possibility to tune the optical response to a specific application make the integrated filter arrays suitable for compact sensing systems.
Databáze: OpenAIRE