All-reflective UV-VIS-NIR transmission and fluorescence spectrometer for μm-sized samples
Source abstract
Abstract
We report on an optical transmission spectrometer optimized for tiny samples. The setup is based on all-reflective parabolic optics and delivers broadband operation from 215 to 1030 nm. A fiber-coupled light source is used for illumination and a fiber-coupled miniature spectrometer for detection. The diameter of the probed area is less than 200 μm for all wavelengths. We demonstrate the capability to record transmission, absorption, reflection, fluorescence and refractive indices of tiny and ultrathin sample flakes with this versatile device. The performance is validated with a solid state wavelength standard and with dye solutions.
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Research context
OpenAlex topics: Photonic and Optical Devices · Spectroscopy and Laser Applications · Spectroscopy Techniques in Biomedical and Chemical Research
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Affiliations
Max-Planck-Institut für Quantenoptik 1 , Hans-Kopfermann-Str. 1, 85748 Garching, Germany
Ludwig-Maximilians-Universität München 2 , Am Coulombwall 1, 85748 Garching, Germany
Ludwig-Maximilians-Universität München 3 Lehrstuhl für BioMolekulare Optik, , Oettingenstr. 67, 80538 München, Germany
Funding
European Research Council (ERC)
References (17)
Show source-provided references
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