A. Wasan et al., CORRELATION-INDUCED SPECTRAL CHANGES ON PASSING PARTIALLY COHERENT-LIGHT THROUGH AN ANNULAR APERTURE, Optics communications, 121(4-6), 1995, pp. 89-94
An experimental study on spectral changes produced on passing partiall
y coherent light through an annular aperture is made for on-axis and o
ff-axis measurements. The dependence of the observed spectral shift on
the ratio of the radius of central obstruction to that of the outer r
adius of opening of the annular aperture is investigated.