A multichannel IR spectrometer using a standard silicon CCD array is demonstrated. Sum frequency generation between an ultrafast optical pulse and a frequency-dispersed IR beam generates a spatially extended optical signal that is collected on a generic CCD video camera. This method provides an inexpensive and efficient alternative to conventional multichannel IR arrays.
© 2005 Optical Society of America
(120.6200) Instrumentation, measurement, and metrology : Spectrometers and spectroscopic instrumentation
(300.6340) Spectroscopy : Spectroscopy, infrared
(300.6500) Spectroscopy : Spectroscopy, time-resolved
Matthew F. DeCamp and Andrei Tokmakoff, "Upconversion multichannel infrared spectrometer," Opt. Lett. 30, 1818-1820 (2005)