THE TECHNIQUES OF HIGH RESOLUTION, DOUBLE-BEAM, TWO-BEAM INTERFEROMETRY WITH A FAR INFRARED LAMELLAR GRATING INTERFEROMETERReportar como inadecuado




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Abstract : The instrumentation of a high resolution, far infrared lamellar grating interferometer is discussed. The advantages of double-beam differencing to minimize the dynamic range problem is illustrated with far infrared interferograms and corresponding high resolution spectra of Carbon Monoxide CO, water vapor H2O, Deuterium Chloride DCl and Nitric Oxide NO. In the pure rotational spectrum of DCl the 35Cl-37Cl isotopic splitting of the J = 2 → 3 transition Δν ~ 0.09 cm-1 is clearly resolved. Some of the problems and disadvantages encountered using the double-beam differencing technique are discussed.





Autor: J. Dowling R. Hall

Fuente: https://hal.archives-ouvertes.fr/



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