We have designed, fabricated, and tested a blazed artificial dielectric transmission grating in fused quartz for use at the 633-nm wavelength. By locally varying the index, using fabricated two-dimensional arrays of dielectric cylinders, we can achieve a desired phase modulation to produce a diffractive phase element in one processing step. The effective index depends on the fill fraction of the cylinders.
© 1995 Optical Society of America
Original Manuscript: October 17, 1994
Published: January 15, 1995
F. T. Chen and H. G. Craighead, "Diffractive phase elements based on two-dimensional artificial dielectrics," Opt. Lett. 20, 121-123 (1995)