scholarly journals A note on the history of photoacoustic, thermal lensing, and photothermal deflection techniques

2020 ◽  
Vol 128 (23) ◽  
pp. 230901 ◽  
Author(s):  
Mario Bertolotti ◽  
Roberto Li Voti
Keyword(s):  
Thermal Lensing ◽  
History Of ◽  
Photothermal Deflection

A Comparison of Photothermal Deflection and Thermal Lensing Spectroscopy for Liquid Chromatographic Detection

1987 ◽  
Vol 41 (4) ◽  
pp. 583-585 ◽  
Author(s):  
Yen Yang ◽  
Thanh Viet Ho
Keyword(s):  
Detection System ◽  
Power Level ◽  
Thermal Lensing ◽  
Pump Probe ◽  
Argon Ion Laser ◽  
Ion Laser ◽  
Chromatographic Detection ◽  
Photothermal Deflection ◽  
Liquid Chromatographic ◽  
Argon Ion

A one-color pump/probe photothermal deflection detector for liquid chromatography is described and compared with its corresponding thermal lensing detection system. With 457.9-nm radiation from an argon-ion laser operated at a power level of 100 mW, both systems exhibit comparable detection limits. As a consequence, the choice between the two detectors is seemingly arbitrary. Other analytical aspects and potential for use are also compared and discussed.

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