Novel design of an ellipsoidal diffuse-reflectance accessory with improved throughput

Ralf Marbach; Herbert Michael Heise

doi:10.1117/12.56397

1 March 1992 Novel design of an ellipsoidal diffuse-reflectance accessory with improved throughput

Ralf Marbach, Herbert Michael Heise

Proceedings Volume 1575, 8th Intl Conf on Fourier Transform Spectroscopy; (1992) https://doi.org/10.1117/12.56397
Event: Eighth International Conference on Fourier Transform Spectroscopy, 1991, Lubeck-Travemunde, Germany

Abstract

The value of diffuse reflectance spectroscopy for infrared analytical methods has some limitations caused by the low throughput efficiency of commercial accessories. We have redesigned a home-built diffuse reflectance accessory with an on-axis ellipsoidal collecting mirror which can also have benefits for the analysis of bulky samples. For illumination, use is made of the Circle cell optics which fits by adaption into the cone with a half angle of 30 degree(s) not considered for detection. Special features of the accessory are discussed, especially in view of our applications to the study of human tissue.

Citation Download Citation

Ralf Marbach and Herbert Michael Heise "Novel design of an ellipsoidal diffuse-reflectance accessory with improved throughput", Proc. SPIE 1575, 8th Intl Conf on Fourier Transform Spectroscopy, (1 March 1992); https://doi.org/10.1117/12.56397

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