Raman sensing of vapors and liquids in porous silicon

L. Sirleto; M. A. Ferrara; L. Moretti; A. M. Rossi; E. Santamato; I. Rendina

doi:10.1117/12.608974

7 July 2005 Raman sensing of vapors and liquids in porous silicon

L. Sirleto, M. A. Ferrara, L. Moretti, A. M. Rossi, E. Santamato, I. Rendina

Proceedings Volume 5840, Photonic Materials, Devices, and Applications; (2005) https://doi.org/10.1117/12.608974
Event: Microtechnologies for the New Millennium 2005, 2005, Sevilla, Spain

Abstract

Fluid-solid interfacial phenomena are a subject of much interest. In the adsorption phenomena, the adsorbent experiences the action of the molecular forces inducing strains. In this paper, we experimentally investigate adsorption phenomena in porous silicon microcavities by spontaneous Raman scattering. Polarised Raman spectra are measured in a backscattering configuration using a diode laser at 404 nm. We observe a reversible blue shift of the Raman spectra exposing a porous silicon multilayer to air saturated with vapor of pentane or iso-propanol. We ascribe the shift of the Raman spectra to the strain in porous silicon due to the adsorption in the pore walls.

Citation Download Citation

L. Sirleto, M. A. Ferrara, L. Moretti, A. M. Rossi, E. Santamato, and I. Rendina "Raman sensing of vapors and liquids in porous silicon", Proc. SPIE 5840, Photonic Materials, Devices, and Applications, (7 July 2005); https://doi.org/10.1117/12.608974

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available