Browsing by Author "Kohok, Abhay"
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Item Implementation of transfer-pupil in a spectrograph on optical telescopes(2011-07-06) Das, H.K.; Kohok, Abhay; Tandon, S. N.Based on the transfer pupil technique we develop a method to measure the lower order aberration coe±cients for optical telescopes; the method makes use of a Hartmann mask in a spectrograph for sampling the wavefront at di®erent locations.