A preliminary study of a retroreflective mirror resonator

Liquid chromatography absorbance detector with retroreflective array for aberration compensation and double pass operation

“…Photothermal refraction, based upon the crossed-beam thermal lens, is a laser-based thermooptical detector of very small absorbance which offers a significant advantage for small volume analysis; the sensitivity of the effect is independent of path length (6)(7)(8)(9)(10)(11). In this technique, a localized measurement of sample absorbance is made at the intersection 0003-2700/85/0357-2703S01.50/0 © 1985 American Chemical Society…”