Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group
  • Journal of Lightwave Technology
  • Vol. 34,
  • Issue 4,
  • pp. 1281-1287
  • (2016)

The Effect of Absorption Losses on the Optical Behaviour of Macroporous Silicon Photonic Crystal Selective Filters

Open Access Open Access

Abstract

The effect of losses in photonic crystal structures on transmittance and reflectance has been studied by numerical techniques, and compared to fabricated macroporous silicon samples. Material absorption and tolerances of the pores play an essential role in determining performance in optical applications. The relevance of the structure geometry has been investigated through the porosity. The considered photonic crystals in this paper are 3-d macroporous silicon structures fabricated by electrochemical etching with pore profile modulation, and defect inclusion. The examined structures are intended to work with quasi-normal light incidence as selective filters. The effect of losses on the forbidden band and resonance is studied and reported for both transmittance and reflectance. The reflectance peak is less affected by losses, while transmitted light experiences a noticeable reduction even for small absorption factors. This has critical implications for the performance of these structures as transmission filters. Furthermore, it is shown that an optimum can be found for a given absorption coefficient by choosing the appropriate porosity.

© 2015 OAPA

PDF Article
More Like This
Thermal emission of macroporous silicon chirped photonic crystals

Moisés Garín, Trifon Trifonov, David Hernández, Ángel Rodriguez, and Ramón Alcubilla
Opt. Lett. 35(20) 3348-3350 (2010)

Photonic molecules for improving the optical response of macroporous silicon photonic crystals for gas sensing purposes

D. Cardador, D. Segura, and A. Rodríguez
Opt. Express 26(4) 4621-4630 (2018)

Empirical demonstration of CO2 detection using macroporous silicon photonic crystals as selective thermal emitters

David Cardador Maza, Daniel Segura Garcia, Ioannis Deriziotis, Moisés Garín, Jordi Llorca, and Angel Rodriguez
Opt. Lett. 44(18) 4535-4538 (2019)

Cited By

Optica participates in Crossref's Cited-By Linking service. Citing articles from Optica Publishing Group journals and other participating publishers are listed here.


Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved