𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Sum-frequency generation from surface species in porous silicon

✍ Scribed by Mattei, G. ;Valentini, V. ;Yakovlev, V. A. ;Mani, A. A. ;Sartenaer, Y. ;Thiry, P. A. ;Peremans, A. ;Caudano, Y. ;Dreesen, L. ;Humbert, C. ;Busson, B. ;Vidal, F. ;Tadjeddine, A.

Publisher
John Wiley and Sons
Year
2005
Tongue
English
Weight
136 KB
Volume
202
Category
Article
ISSN
0031-8965

No coin nor oath required. For personal study only.

✦ Synopsis

Abstract

For the first time, the sum‐frequency generation (SFG) spectra of surface species have been measured in porous silicon (PS) layers. The range of the vibrations 2000–2300 cm^–1^ for the native species Si–H~x~ has been explored. Furthermore for the studied mesoporous materials, it has been found that, as opposed to the infrared absorption, the SFG signal increases with porosity. Finally, the angular dependence and the enhancement of the SFG signal were measured in a one‐dimensional PS photonic crystal structure with a defect producing an energy level in the photonic band gap. (© 2005 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)

📜 SIMILAR VOLUMES

Sum frequency generation from planar and
Sum frequency generation from planar and porous silicon in contact with liquids
✍ Kolasinski, Kurt W. ;DeWitt, Kristy M. ;Harrison, Ian 📂 Article 📅 2007 🏛 John Wiley and Sons 🌐 English ⚖ 218 KB

## Abstract Sum frequency generation (SFG) involving an ultrafast infrared pulse and a 787 nm up‐conversion pulse mixed at the surface of planar or porous Si as well as planar GaAs has been studied. We demonstrate that SFG data can be obtained while porous silicon is in contact either with an aqueo

Doubly resonant sum-frequency generation
Doubly resonant sum-frequency generation from molecules with general harmonic potential surfaces
✍ J.C. Vallet; A.J. Boeglin; J.P. Lavoine; A.A. Villaeys 📂 Article 📅 1995 🏛 Elsevier Science 🌐 English ⚖ 423 KB

A many-body approach is used to analyse the doubly resonant infrared-visible sum-frequency generation from molecules with general harmonic potential surfaces. This multi-mode model includes arbitrary linear and quadratic electron-phonon coupling coefficients, and is valid at any temperature. Numeric

Generation of reactive oxygen species fr
Generation of reactive oxygen species from porous silicon microparticles in cell culture medium
✍ Suet Peng Low; Keryn A. Williams; Leigh T. Canham; Nicolas H. Voelcker 📂 Article 📅 2009 🏛 John Wiley and Sons 🌐 English ⚖ 181 KB

## Abstract Nanostructured (porous) silicon is a promising biodegradable biomaterial, which is being intensively researched as a tissue engineering scaffold and drug‐delivery vehicle. Here, we tested the biocompatibility of non‐treated and thermally‐oxidized porous silicon particles using an indire