Spectral analysis of a three-dimensional photonic quantum ring laser with a square microcavity

Abstract

Articles you may be interested inExcitation power dependence of the Purcell effect in photonic crystal microcavity lasers with quantum wires From amplified spontaneous emission to microring lasing using nanocrystal quantum dot solids Three-dimensional photonic quantum ring lasers with a square microcavity were fabricated and their spectra were explained by combining two conditions: the off-normal Fabry-Pérot resonance and quadruple-bounced whispering-gallery mode. The angular distribution of the emission modes and their discrete wavelengths were in excellent agreement with a three-dimensional Rayleigh-Fabry-Pérot model. The three-dimensional model also showed that the slope of the spectral mode spacing and the value of the angular mode spacing as a function of the length of a square side L are inversely proportional to L 2 and L, respectively.

Electron emission from a semiconductor quantum ring under normally incident radiation

“…The particular classes of nanostructures with the ring geometry are being intensively investigated due to the possibility a b 2r of experimental observations of the Aharonov-Bohm effect in these structures. Ring-shaped quantum dots with nanometre-scale radii have triggered much interest in theoretical and experimental investigations of their electric and optical properties [6][7][8][9][10]. In many respects, quantum rings are quantum dots with a particular confining potential.…”