Opportunities to apply photochromism in smart optics are highlighted. The reversible light-
triggered switching in UV–vis absorption and in the refractive index can be exploited to …

In the past, the formation of microscale patterns in the far field by light has been diffractively
limited in resolution to roughly half the wavelength of the radiation used. Here, we …

Diffraction prevents the focusing of ultraviolet and visible radiations within nanoscaled
volumes and, as a result, the imaging and patterning of nanostructures with conventional far …

In recent years, fluorescence microscopy has been revolutionized. Reversible switching of
fluorophores has enabled circumventing the limits imposed by diffraction. Thus, resolution …

We exploit a technique, based on nonlinear optimization, to design diffractive lenses that
focus optical nulls without any phase singularities. To ensure ease of fabrication, these …

By saturating a photochromic transition with a nodal illumination (wavelength, λ), one
isomeric form of a small molecule is spatially localized to a region smaller than the far-field …

Interference lithography (IL) has proven itself to be an enabling technology for
nanofabrication. Within IL, issues of spatial phase distortion, fringe stability, and substrate …

The authors report on the fabrication of binary spiral zone plates and investigate an
approach using gray scale scanning-electron-beam lithography to fabricate spiral-phase …

We experimentally verify the focusing characteristics of dichromats, a new class of circular-
symmetric diffractive-optical lenses that generate, in the same focal plane, focal spots for …

Absorbance-Modulation-Optical Lithography (AMOL) has been previously demonstrated to
be able to confine light to deep sub-wavelength dimensions and thereby, enable patterning …