A quantum cascade laser-based gas analyzers with table-top size are developed for the acetone and isotope of carbon dioxide. The precision of 0.1 ppm and 0.3 ‰ in delta notation are achieved respectively.
A. Maekawa, Y. Shiomi, M. Uchida, and T. Kakuno, "QCL-based trace gas analyzer for industrial and healthcare applications," Proc. SPIE 10111, Quantum Sensing and Nano Electronics and Photonics XIV, 1011106 (Presented at SPIE OPTO: January 29, 2017; Published: 27 January 2017); https://doi.org/10.1117/12.2249585.
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Study of self-shadowing effect as a simple means to realize nanostructured thin films and layers with special attentions to birefringent obliquely deposited thin films and photo-luminescent porous silicon