Surface probes of porous toluene/water ices: adsorption kinetics and annealing spectra measured by second-harmonic generation

Bryan Fayne Henson; Jeanne M. Robinson

doi:10.1117/12.180835

21 July 1994 Surface probes of porous toluene/water ices: adsorption kinetics and annealing spectra measured by second-harmonic generation

Bryan Fayne Henson, Jeanne M. Robinson

Author Affiliations +

Proceedings Volume 2125, Laser Techniques for Surface Science; (1994) https://doi.org/10.1117/12.180835
Event: OE/LASE '94, 1994, Los Angeles, CA, United States

Abstract

We have applied the technique of second harmonic generation to the study of the solid/vapor interface of porous toluene/water ice films at low temperature. The ice samples are condensed from the vapor onto a cold support at 90 K and are typically approximately 500 micrometers thick with an internal surface area of approximately 200 m². The ices are transparent to both the 532 nm probe laser and to the 266 nm second harmonic signal. Second harmonic light is generated from surfaces throughout the bulk of the porous sample. Significant differences in the efficiency for second harmonic generation from water and toluene enable the species specific study of annealing and adsorption in this binary system. Measurements of the coverage dependent adsorption of toluene on water ice, and the observation of a coverage dependent liquid-solid phase transition in a few monolayers of toluene adsorbed on water ice at temperatures below the bulk toluene melting temperature are presented.

Citation Download Citation

Bryan Fayne Henson and Jeanne M. Robinson "Surface probes of porous toluene/water ices: adsorption kinetics and annealing spectra measured by second-harmonic generation", Proc. SPIE 2125, Laser Techniques for Surface Science, (21 July 1994); https://doi.org/10.1117/12.180835

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