Skip to main content
Article thumbnail
Location of Repository

Pulsed‐Laser Excited Thermal Lens Spectroscopy With Sample‐Fluid Heat Coupling

By G. C. Astrath, Luis C. Malacarne, Paulo R.B. Pedreira, Marcos P. Belancon, Mauro L. Baesso, Prakash R. Joshi and Stephen E. Bialkowski

Abstract

Analytical and finite element analysis modeling methods of the pulsed-laser excited photothermal (PT) lens signal of solids samples surrounded by air are presented. The analytical and finite element analysissolutions for the temperatures induced in the sample and in the air were found to agree over the range of conditions in this report. Model results show that the air contribution to the total PT lens signal is significant in many cases. In fact, these solutions open up the possibility of applying the pulsed excited thermal lens method for accurate prediction of the heat transfer to the coupling fluid and subsequently to study the gas surrounding the samples by using a known material solid sample

Topics: pulsed, laser, thermal lens spectroscopy, coupling
Publisher: Hosted by Utah State University Libraries
Year: 2010
OAI identifier: oai:digitalcommons.usu.edu:chem_facpub-1552
Provided by: DigitalCommons@USU
Download PDF:
Sorry, we are unable to provide the full text but you may find it at the following location(s):
  • https://digitalcommons.usu.edu... (external link)
  • Suggested articles


    To submit an update or takedown request for this paper, please submit an Update/Correction/Removal Request.