Transmission and Thermal Emission in the NO2 and CO Absorption Lines using Macroporous Silicon Photonic Crystals with 700 Nm Pitch

D. Cardador, D. Segura, D. Vega, A. Rodríguez

Abstract

Macroporous silicon photonic crystals with a cavity in the middle of their structure have been studied in both, transmission and emission. The initial transmittance of the photonic crystals was increased form 4%-6% up to the value of 25%-30% by performing a rear attach of the samples of approximately 160 µm. The use of wafers with 700 nm of pitch allowed us to fabricate the optical response of the photonic crystals in the ranges of 6.4 µm and 4.6 µm, where different gases have their absorption frequency –such as NO2 or CO. The fabricated samples have been also heated in order to evaluate their viability to be used as selective emitters for gas sensing purposes. Results show a good agreement in the position of the respective peak compared to the transmission spectrum. However, further studies have to be done to place the base of the peak as close as possible to the 0% of emission in order to have a better selective emitter. This work is a starting point for gas detection devices using macroporous technology in the mid-infrared, which includes ammonia, formaldehyde, carbon monoxide or nitrous oxide, among others.

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Paper Citation


in Harvard Style

Cardador D., Segura D., Vega D. and Rodríguez A. (2017). Transmission and Thermal Emission in the NO2 and CO Absorption Lines using Macroporous Silicon Photonic Crystals with 700 Nm Pitch . In Proceedings of the 5th International Conference on Photonics, Optics and Laser Technology - Volume 1: PHOTOPTICS, ISBN 978-989-758-223-3, pages 191-195. DOI: 10.5220/0006120101910195


in Bibtex Style

@conference{photoptics17,
author={D. Cardador and D. Segura and D. Vega and A. Rodríguez},
title={Transmission and Thermal Emission in the NO2 and CO Absorption Lines using Macroporous Silicon Photonic Crystals with 700 Nm Pitch},
booktitle={Proceedings of the 5th International Conference on Photonics, Optics and Laser Technology - Volume 1: PHOTOPTICS,},
year={2017},
pages={191-195},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0006120101910195},
isbn={978-989-758-223-3},
}


in EndNote Style

TY - CONF
JO - Proceedings of the 5th International Conference on Photonics, Optics and Laser Technology - Volume 1: PHOTOPTICS,
TI - Transmission and Thermal Emission in the NO2 and CO Absorption Lines using Macroporous Silicon Photonic Crystals with 700 Nm Pitch
SN - 978-989-758-223-3
AU - Cardador D.
AU - Segura D.
AU - Vega D.
AU - Rodríguez A.
PY - 2017
SP - 191
EP - 195
DO - 10.5220/0006120101910195