title: Prism-based infrared spectrographs using modern-day detectors.
abstract: A comparison of prism-based spectrographs to grating-based spectrographs is made when each of the systems is coupled to a modern-day liquid-nitrogen-cooled photovoltaic array detector. A comparison of the systems is also made using a room-temperature microbolometer array detector. Finally, infrared microspectroscopy of samples whose size is approximately 10 micrometers will be demonstrated using a prism spectrograph outfitted with both types of detectors. The results of the study show that prism-based spectrographs offer an economical alternative to grating-based systems when spectral coverage is more critical than spectral resolution. The results also demonstrate that spectra with good signal-to-noise ratios can be collected on any of the systems with a total integration time of 10 seconds or less.
authors.affiliation: Molecular Microspectroscopy Laboratory, Department of Chemistry and Biochemistry, Miami University, Oxford, OH 45056, USA.
authors.forename: Zachary
authors.initials: Z
authors.lastname: Keltner
authors.forename: Katherine
authors.initials: K
authors.lastname: Kayima
authors.forename: Adam
authors.initials: A
authors.lastname: Lanzarotta
authors.forename: Luis
authors.initials: L
authors.lastname: Lavalle
authors.forename: Marina
authors.initials: M
authors.lastname: Canepa
authors.forename: Anthony E
authors.initials: AE
authors.lastname: Dowrey
authors.forename: Gloria M
authors.initials: GM
authors.lastname: Story
authors.forename: Curtis
authors.initials: C
authors.lastname: Marcott
authors.forename: André J
authors.initials: AJ
authors.lastname: Sommer
mesh_terms: D004867:Equipment Design; D019544:Equipment Failure Analysis; D012031:Refractometry / Q000295:instrumentation*; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D012815:Signal Processing, Computer-Assisted / Q000295:instrumentation*; D013055:Spectrophotometry, Infrared / Q000295:instrumentation*; D014159:Transducers