Accession Number:

ADA064198

Title:

Increasing the Throughput of Hadamard Spectrometers by the Use of Curved Slots,

Descriptive Note:

Corporate Author:

UTAH STATE UNIV LOGAN ELECTRO-DYNAMICS LAB

Report Date:

1978-09-22

Pagination or Media Count:

318.0

Abstract:

This report proves that the optical throughput of Hadamard spectrometers can be significantly increased by using curved rather than straight slots. The slot curvature for a representative Hadamard spectrometer is optimized. For this Hadamard spectrometer the throughput is increased by a factor of ten by using optimally curved slots instead of straight slots. Analytic and ray-tracing methods are used to optimize the slot curvature. Experimental measurements with both straight and optimally curved slots are given for comparison. Ammonia absorption spectra taken in the 9 to 13-micrometers wavelength interval using 20-mm tall curved slots are given. Author

Subject Categories:

  • Optics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE