Abstract

Two-dimensional color CMOS cameras have become ubiquitous. They promise to support ubiquitous spectrometry. When raw illumination levels can be measured by such cameras, their use for spectrometry depends on using as many pixels as possible and on being able to calibrate images at point-of-use. Stacked, mutually rotated transmission diffraction gratings provide a means to generate multi-order, wide dynamic range dispersed visible spectra suitable for absorption, reflection, and fluorescence spectrometry. The theoretical basis for dispersion, resolution, and normalization of such spectra are derived, and initial characterization is reported.

© 2016 The Author(s)

Analysis of stacked rotated gratings

Jianhua Jiang, Panfilo C. Deguzman, and Gregory P. Nordin
Appl. Opt. 46(8) 1177-1183 (2007)

Stretchable diffraction gratings for spectrometry

Aleksey N. Simonov, Semen Grabarnik, and Gleb Vdovin
Opt. Express 15(15) 9784-9792 (2007)

Diffraction grating eigenvector for translational and rotational motion

Michael C. Rushford, William A. Molander, James D. Nissen, Igor Jovanovic, Jerald A. Britten, and C. P. Barty
Opt. Lett. 31(2) 155-157 (2006)

Reflective silicon binary diffraction grating for visible wavelengths

Zhen Peng, David A. Fattal, Andrei Faraon, Marco Fiorentino, Jingjing Li, and Raymond G. Beausoleil
Opt. Lett. 36(8) 1515-1517 (2011)

Large area nanoimprint enables ultra-precise x-ray diffraction gratings

D. L. Voronov, E. M. Gullikson, and H. A. Padmore
Opt. Express 25(19) 23334-23342 (2017)