Programmable spectroscopy enabled by DLP

Bjarke Rose; Michael Rasmussen; Nicolai Herholdt-Rasmussen; Ole Jespersen

doi:10.1117/12.2175803

10 March 2015 Programmable spectroscopy enabled by DLP

Bjarke Rose, Michael Rasmussen, Nicolai Herholdt-Rasmussen, Ole Jespersen

Proceedings Volume 9376, Emerging Digital Micromirror Device Based Systems and Applications VII; 93760I (2015) https://doi.org/10.1117/12.2175803
Event: SPIE OPTO, 2015, San Francisco, California, United States

Abstract

Ibsen Photonics has since 2012 worked to deploy Texas Instruments DLP® technology to high efficiency, fused silica transmission grating based spectrometers and programmable light sources. The use of Digital Micromirror Devices (DMDs) in spectroscopy, allows for replacement of diode array detectors by single pixel detectors, and for the design of a new generation of programmable light sources, where you can control the relative power, exposure time and resolution independently for each wavelength in your spectrum. We present the special challenges presented by DMD's in relation to stray light and optical throughput, and we comment on the possibility for instrument manufacturers to generate new, dynamic measurement schemes and algorithms for increased speed, higher accuracy, and greater sample protection. We compare DMD based spectrometer designs with competing, diode array based designs, and provide suggestions for target applications of the technology.

Citation Download Citation

Bjarke Rose, Michael Rasmussen, Nicolai Herholdt-Rasmussen, and Ole Jespersen "Programmable spectroscopy enabled by DLP", Proc. SPIE 9376, Emerging Digital Micromirror Device Based Systems and Applications VII, 93760I (10 March 2015); https://doi.org/10.1117/12.2175803

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