Tran C D, Simianu V
Department of Chemistry, Marquette University, Milwaukee, Wisconsin 53233.
Anal Chem. 1992 Jul 1;64(13):1419-25. doi: 10.1021/ac00037a021.
The instrumentation development of a novel, all solid-state, nonmoving parts, fast-scanning and wide-tuning range multiwavelength thermal lens spectrophotometer based on the acousto-optic tunable filter (AOTF) is described. Initially, the essential electronic driver was developed to facilitate the systematic characterization of the paratellurite (TeO2) AOTF and to demonstrate that this filter can be successfully and uniquely used as an all solid-state, nonmoving parts dispersive device to rapidly diffract white incident light into a selected color beam, to amplitude modulate the diffracted monochromatic light, and to keep its intensity constant. The multiwavelength thermal lens instrument was subsequently constructed using this AOTF, and preliminary results on advantages of this spectrophotometer such as its ability to characterize trace chemicals and to analyze multicomponent samples are delineated.
本文描述了一种基于声光可调滤光器（AOTF）的新型全固态、无移动部件、快速扫描且调谐范围宽的多波长热透镜分光光度计的仪器开发。最初，开发了基本的电子驱动器，以促进对亚碲酸盐（TeO2）AOTF进行系统表征，并证明该滤光器可成功且独特地用作全固态、无移动部件的色散装置，将白色入射光快速衍射为选定的色光束，对衍射的单色光进行幅度调制，并保持其强度恒定。随后使用该AOTF构建了多波长热透镜仪器，并阐述了该分光光度计的一些优点的初步结果，例如其表征痕量化学物质和分析多组分样品的能力。
