GENERATION OF APPROXIMATE FOCUS-WAVE-MODE PULSES FROM WIDE-BAND DYNAMIC GAUSSIAN APERTURES

Citation
Am. Shaarawi et al., GENERATION OF APPROXIMATE FOCUS-WAVE-MODE PULSES FROM WIDE-BAND DYNAMIC GAUSSIAN APERTURES, Journal of the Optical Society of America. A, Optics, image science,and vision., 12(9), 1995, pp. 1954-1964
Citations number
27
Categorie Soggetti
Optics
ISSN journal
10847529
Volume
12
Issue
9
Year of publication
1995
Pages
1954 - 1964
Database
ISI
SICI code
1084-7529(1995)12:9<1954:GOAFPF>2.0.ZU;2-T
Abstract
It is demonstrated that an approximation to the focus-wave-mode field can be generated from a dynamic Gaussian aperture. A source of this ty pe is characterized by the time variation of its effective radius. The performance of such an aperture is studied in detail; it is demonstra ted that the dynamic aperture shows a great enhancement over the corre sponding static one. The types of source investigated provide an effic ient scheme to launch narrow Gaussian pulses from extended apertures.