Аннотации:
In order to assess the possibility of using a tunable quarter-wave plate for determining light wavelength, we have studied the propagation of coherent and incoherent light through a system consisting of two identical birefringent (mica) crystals with various parameters and determined the adjustable mutual rotation angle as a function of the light wavelength. The principal possibility of determining a change in the wavelength of coherent light to within 0.03 nm in a 3 nm range is demonstrated. © 2009 Pleiades Publishing, Ltd.