Interferometric methods for array generation offer various advantages
over the diffractive methods, but the efficiency of such interferometr
ic methods so far reported are very low, making its applicability very
low. In view of this, an experimental setup using polarizing elements
for an eight-fold increase in the efficiency of an interferometric ar
ray generator-the Michelson interferometers in tandem setup (P. Senthi
lkumaran and R. S. Sirohi, Optics Communications, 105 (1994) 158)-is p
resented in this paper. (C) 1997 Elsevier Science Ltd.