Theoretical Study of Pulsed-Laser-Induced Resonant Desorption.
Abstract
Adsorbed atoms irradiated by an infrared laser in resonance with one pair of vibrational levels of the adbond are studied. A pulsed laser is considered which has pulse duration short compared to the relaxation times of the system. The equations governing the time evolution of the adbond under a series of pi-pulses are derived. Two criteria are defined to compare the effects of a series of pi-pulses and of a continuous-wave laser. They are: (1) equal average energy in both lasers and (2) equal average resonant heating due to both lasers. These criteria are used to compare the effects of al pulsed laser and a continuous wave laser on laser induced resonant desorption. It is shwon that a pulsed laser does not lead to a dramatic increase of the desorption. In the high-intensity limit, resonance heating and desorption reach the same saturation limit for a pulsed laser as for a continuous-wave laser.
Document Details
- Document Type
- Technical Report
- Publication Date
- Nov 01, 1986
- Accession Number
- ADA174438
Entities
People
- Sander Van Smaalen
- Thomas F. George
Organizations
- University at Buffalo