Slow-light enhanced light-matter interactions with applications to gas sensing
| dc.creator | Jensen, K. H. | |
| dc.creator | Alam, M. N. | |
| dc.creator | Scherer, B. | |
| dc.creator | Lambrecht, A. | |
| dc.creator | Mortensen, N. A. | |
| dc.date | 2008-09-23 | |
| dc.date.accessioned | 2026-07-07T10:04:38Z | |
| dc.date.available | 2026-07-07T10:04:38Z | |
| dc.description | Optical gas detection in microsystems is limited by the short micron scale optical path length available. Recently, the concept of slow-light enhanced absorption has been proposed as a route to compensate for the short path length in miniaturized absorption cells. We extend the previous perturbation theory to the case of a Bragg stack infiltrated by a spectrally strongly dispersive gas with a narrow and distinct absorption peak. We show that considerable signal enhancement is possible. As an example, we consider a Bragg stack consisting of PMMA infiltrated by O2. Here, the required optical path length for visible to near-infrared detection (~760 nm) can be reduced by at least a factor of 10^2, making a path length of 1 mm feasible. By using this technique, optical gas detection can potentially be made possible in microsystems. | |
| dc.identifier | https://arxiv.org/abs/0809.3855 | |
| dc.identifier | http://arxiv.org/abs/0809.3855 | |
| dc.identifier | Opt. Commun. 281, 5335 (2008) | |
| dc.identifier | doi:10.1016/j.optcom.2008.07.073 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/169746 | |
| dc.subject | Optics | |
| dc.title | Slow-light enhanced light-matter interactions with applications to gas sensing | |
| dc.type | text |