We analyze the extension of depth of field using both amplitude and phase modulation of the pupil function. In particular, we discuss the advantages and disadvantages of each approach and establish the range of applicability of each method based on the range of spatial frequencies of interest in the imaging system. To the best of our knowledge, this is the first such report on the range of applicability of amplitude and phase modulation to extend the depth of field.
© 2008 Optical Society of America
Original Manuscript: December 21, 2007
Revised Manuscript: February 18, 2008
Manuscript Accepted: February 28, 2008
Published: March 31, 2008
Saeed Bagheri and Bahram Javidi, "Extension of depth of field using amplitude and phase modulation of the pupil function," Opt. Lett. 33, 757-759 (2008)