Spaser is an acronym for surface plasmon amplification by stimulated emission of radiation.
A spaser is effectively a nanoscale laser with subwavelength dimensions and a low-Q …

We carried out a detailed analysis of a circular graphene spaser made of a circular
graphene flake and a quantum cascade well structure. Owing to unique properties of …

Mode characteristics of AlGaInAs/InP square resonator microlasers laterally confined by a
bisbenzocyclobutene layer, with an output waveguide connected to one vertex or the …

Out-of-plane losses are the major issue in the integration of two-dimensional photonic
crystal devices in photonic integrated circuits. In this paper, we show that the out-of-plane …

Some microobjects can concentrate an incoming incident plane wave and create the
socalled photonic nanojets. These highly focused emerging beams have a high intensity …

Guided-mode resonances have been exploited to filter the normal-incidence transmission of
mid-infrared wavelengths through a photonic crystal slab. A two-dimensionally periodic …

Semiconductor laser devices based on triangular resonators can provide cheap, compact,
and high performance optical sources for optical communications, computing, defense, and …

We propose a nano-scale current-direction-switching device (CDSD) that operates based on
the novel phenomenon of geometrical asymmetry between two hot-electron generating …

We have theoretically studied the optical properties of a filled slot metamaterial waveguide
with lateral slab regions consisting of alternating silver–silica multilayers. It is shown that this …

We design, fabricate, and test photonic crystal heterostructure cavity lasers in the InP
material system. A heterostructure cavity is formed by interfacing two different photonic …