ISSN:
1349-9432
Keywords:
spectral change
;
polychromatic spatially partially coherent source
;
spatial coherence control
;
super-luminescent diode as a spectral source
;
red and blue shift of the spectrum
;
theory and experiments
Source:
Springer Online Journal Archives 1860-2000
Topics:
Physics
Notes:
Abstract This paper describes a change in optical spectrum on propagation in free space for a particular class of spatially partially coherent fields emanating from a polychromatic secondary source. A rectangular opening aperture in an opaque screen, illuminated with an extended incoherent polychromatic primary source, works as the secondary source. The spectral change is explored in detail theoretically and experimentally in association with spatial coherence in the secondary source as well as dispersive diffraction by the secondary source. The peak shift of the spectrum is associated with the coherence area for characterizing the secondary source. The peak shift becomes maximum if the secondary source is spatially coherent, but no shift occurs if the secondary source is spatially incoherent.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/s10043-995-0006-1
