Photothermal Lens Aberration Effects in Two Laser Thermal Lens Spectrometry

Document Type

Article

Journal/Book Title

Applied Optics

Publication Date

1985

Volume

24

First Page

2792

Abstract

A comparison of theories describing two laser photothermal lens signals is given. The aberrant nature of this lens is accounted for in a theory which treats the propagation of a monitor laser in terms of a phase shift in this laser beam wave front. The difference between theories are discussed in terms of the predicted signal strengths and temporal behavior. The aberrant theory results in smaller theoretical signal strengths and different functional relationships between signal and analyte level.

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