Optimization of the optical-scheme design for photothermal-lens microscopy in microchipsстатья
Информация о цитировании статьи получена из
Web of Science
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 29 мая 2015 г.
Аннотация:The optical-scheme design for a thermal lens microscope was optimized for the measurements in a microchannel. The actual pathlength, irradiated volume, and the diameter of the thermal lens were estimated The experimental data are in good agreement with the theoretically calculations. The noise sources (laser noises, instrumental flicker noise, convection, and flow noise) were studied, and the possible effects of probe laser on transient and steady-state thermal lens measurements were estimated. The limit of detection of ferroin at 488.0 nm is 1x10(-8) mol dm(-3) (3x10(-21) mol in the detection volume). The linear calibration range is nx 10(-8) - n x 10(-4) mol dm(-3), the repeatability RSD for this range is 3-7%.