| 摘要 |
A refractive spatial heterodyne spectrometer includes an input aperture for receiving an input light; a collimating lens for collimating the input light into a collimated lightbeam; and a beamsplitter for reflecting one part of the collimated light into a first arm and transmitting another part of the collimated light into a second arm. The first arm includes a first dispersing prism for receiving and refracting the first part of the collimated light, and a first mirror positioned to reflect the refracted first collimated light back through the first dispersing prism and to the beamsplitter as a first light wavefront. The second arm includes a second dispersing prism for receiving and refracting the other part of the collimated light, and a second mirror positioned to reflect this refracted light back through the second dispersing prism and to the beamsplitter as a second light wavefront. The beamsplitter transmits a portion of the first light wavefront and reflects a portion of the second light wavefront into an output optics section to inferometrically combine into an interference image, and a detector receives the interference image and outputs an interference image pattern.
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