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Absorber of Topologically Structured Light
Luka Vignjevic, Eric Plum, Nikitas Papasimakis +1
Polarization- and wavelength-sensitive absorbers for homogeneous electromagnetic waves are crucial in photovoltaics, imaging and telecommunications. Here, we report on an absorber…
Localization of nanoscale objects with light singularities
Thomas A. Grant, Anton N. Vetlugin, Eric Plum +2
Unprecedented atomic-scale measurement resolution has recently been demonstrated in single-shot optical localization metrology based on deep-learning analyses of diffraction patter…
Volatile optical bistability enabled by mechanical nonlinearity
Dimitrios Papas, Jun-Yu Ou, Eric Plum +1
Optical devices with metastable states controlled with light (optical flip-flops) are needed in data storage, signal processing and displays. Although non-volatile optical memory r…
Defect-induced nonlinearity in 2D nanoparticles
Jie Xu, Eric Plum
Optical nonlinearity depends on symmetry and symmetries vanish in the presence of defects. Vaccancy defects in centrosymmetric crystals and thin films are a well-known source of ev…
Toy model of harmonic and sum frequency generation in 2D nanostructures
Jie Xu, Vassili Savinov, Eric Plum
Optical nonlinearities of matter are often associated with the response of individual atoms. Here, using a toy oscillator model, we show that in the confined geometry of a two-dime…
Fibre-optic metadevice for all-optical signal modulation based on coherent absorption
Angelos Xomalis, Iosif Demirtzioglou, Eric Plum +7
Recently, coherent control of the optical response of thin films of matter in standing waves has attracted considerable attention, ranging from applications in excitation-selective…