Nonachromaticity and reversals of topological phase as a function of wavelength
نویسنده
چکیده
Contrary to the property of achromaticity (independence of wavelength) usually associated with topological phases, we describe conditions under which topological phases encountered in optics can show sharp changes and reversals for small changes in wavelength, a phenomenon originating in the occurrence of phase singularities, earlier observed in interference experiments. OCIS Codes:(230.5440) Polarization sensitive devices; (120.3180) Interferometry
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تاریخ انتشار 2003