Miniaturization of holographic Fourier-transform spectrometers.
Wave propagation equations in the stationary-phase approximation have been used to identify the theoretical bounds of a miniature holographic Fourier-transform spectrometer (HFTS). It is demonstrated that the HFTS throughput can be larger than for a scanning Fourier-transform spectrometer. Given room- or a higher-temperature constraint, a small HFTS has the potential to outperform a small multichannel dispersive spectrograph with the same resolving power because of the size dependence of the signal-to-noise ratio. These predictions are used to analyze the performance of a miniature HFTS made from simple optical components covering a broad spectral range from the UV to the near IR. The importance of specific primary aberrations in limiting the HFTS performance has been both identified and verified.
Agladze
Nikolay I
NI
Laboratory of Atomic and Solid State Physics, Cornell University, Ithaca, New York 14853-2501, USA. agladze@ccmr.cornell.edu
Sievers
Albert J
AJ
D000465:Algorithms; D003198:Computer Simulation; D017076:Computer-Aided Design; D004867:Equipment Design; D019544:Equipment Failure Analysis / Q000379:methods*; D006696:Holography / Q000295:instrumentation* / Q000379:methods; D008904:Miniaturization / Q000379:methods; D008962:Models, Theoretical; D010865:Pilot Projects; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D017550:Spectroscopy, Fourier Transform Infrared / Q000295:instrumentation* / Q000379:methods