Modulating the Lasing Performance of the Quantum Dot-Cavity System by Adding a Resonant Driving Field

Abstract

We propose a new scheme on modulating the lasing performance of a quantum dot-cavity system. Compared to the conventional above-band pump, in our new scheme an additional resonant driving field is applied on the quantum dot-cavity system. By employing the master equation theory and the Jaynes–Cummings model, we are able to study the interesting phenomenon of the coupling system. To compare the different behaviors between using our new scheme and the conventional method, we carry out investigation for both the “good system” and “more realistic system”, characterizing several important parameters, such as the cavity population, exciton population and the second-order correlation function at zero time delay. Through numerical simulations, we demonstrate that for both the good system and more realistic system, their lasing regimes can be displaced into other regimes in the presence of a resonant driving field.

Room temperature nonlinear mass sensing based on a hybrid spin-nanoresonator system*

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Nonlinear optical rectification of GaAs/Ga1–x Al x As quantum dots with Hulth-en plus Hellmann confining potential

“…[5,6] After that, scientists interact different laser beams with different media, and constantly find new nonlinear optical phenomena, such as optical sum frequency, optical rectification, third harmonic, and frequency doubling. [7][8][9] In the past ten years, new nonlinear optical effects were found, and furthermore scientists have paid more attention to development of nonlinear optical devices. For example, optical parametric oscillators are made by using three wave mixing in nonlinear optical effect.…”

Majorana fermions induced fast- and slow-light in a hybrid semiconducting nanowire/superconductor device

“…[17] In order to observe Majorana-like signatures, several significant experimental schemes have been proposed, including the zerobias peaks (ZBPs) in tunneling spectroscopy, [9][10][11][12][13] the Josephson effect, [18] the Coulomb blockade spectroscopy, [15] and the spin-resolved measurements. [19] On the other hand, due to the significant progress in modern nanoscience and nanotechnology, artificial atoms, i.e., quantum dots (QDs), [20][21][22][23][24][25] manifest the attractive intermediary for probing MFs both theoretically [26][27][28][29][30] and experimentally. [31] However, in the detection of MFs with QDs in the electrical domain, QDs are always considered as only a resonant level.…”