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Colloidal quantum dots (QDs) are promising emitters for electroluminescence devices (QD light-emitting-diodes, QLEDs). Though QDs have been synthesized with efficient and stable photoluminescence, inheriting their superior luminescence in…

Applied Physics · Physics 2020-03-18 Chaodan Pu , Xingliang Dai , Yufei Shu , Meiyi Zhu , Yunzhou Deng , Yizheng Jin , Xiaogang Peng

We report on a device to electronically stabilize the optical injection lock of a semiconductor diode laser. Our technique uses as discriminator the peak height of the laser's transmission signal on a scanning Fabry-Perot cavity and feeds…

Atomic Physics · Physics 2016-06-15 Brendan Saxberg , Benjamin Plotkin-Swing , Subhadeep Gupta

The purpose of this research is to study laser dynamics of InAs/GaAs Quantum Dot Lasers (QDLs) by changing QD energy levels. To date, most of the investigations have focused on only one of these circumstances, and hardly the result of…

Computational Physics · Physics 2015-11-04 Esfandiar Rajaei , Mahdi Ahmadi Borji

Stability control in laser is still an emerging field of research. In this paper the dynamics of External cavity semiconductor lasers (ECSLs) is widely studied applying the methods of chaos physics. The stability is analyzed through…

Optics · Physics 2011-01-20 Sohrab Behnia , Khosro Mabhouti , Saeid Afrang

We derive a model for a single mode laser that includes all two particle quantum correlations between photons and electrons. In contrast to the predictions of semi-classical models, we find that lasing takes place in the presence of quantum…

We experimentally and theoretically investigate injection locking of quantum dot (QD) microlasers in the regime of cavity quantum electrodynamics (cQED). We observe frequency locking and phase-locking where cavity enhanced spontaneous…

We report a quantum dot microcavity laser with a cw sub-microwatt lasing threshold, where a significant reduction of the lasing threshold is observed when a single quantum dot (QD) state is aligned with a cavity mode. The quality factor…

Other Condensed Matter · Physics 2007-05-23 Z. G. Xie , S. Götzinger , W. Fang , H. Cao , G. S. Solomon

In this paper, we present an experimental study of the metrological stabilization of a solid-state frequency comb for embedded metrology applications. The comb is a passively mode-locked laser diode based on InGaAs/InP Quantum-dash…

Topological insulator lasers are a newly introduced kind of lasers in which light snakes around a cavity without scattering. Like for an electron current in a topological insulator material, a topologically protected lasing mode travels…

Optics · Physics 2018-04-19 S. Longhi , Y. Kominis , V. Kovanis

The dynamics of two mutually coupled chaotic diode lasers are investigated experimentally and numerically. By adding self feedback to each laser, stable isochronal synchronization is established. This stability, which can be achieved for…

Disordered Systems and Neural Networks · Physics 2009-11-11 Einat Klein , Noam Gross , Michael Rosenbluh , Wolfgang Kinzel , Lev Khaykovich , Ido Kanter

We show that it is possible to realize simultaneous Raman lasing at two different frequencies using a double-$\Lambda$ system pumped by a bi-frequency field. The Raman lasers are phase-locked to one another, and the beat-frequency matches…

Quantum Physics · Physics 2018-05-30 Hadiseh Alaeian , Selim Shahriar

For a fully chaotic two-dimensional (2D) microcavity laser, we present a theory that guarantees both the existence of a stable single-mode lasing state and the nonexistence of a stable multimode lasing state, under the assumptions that the…

Optics · Physics 2017-12-19 Takahisa Harayama , Satoshi Sunada , Susumu Shinohara

The energy states in semiconductor quantum dots are discrete as in atoms, and quantum states can be coherently controlled with resonant laser pulses. Long coherence times allow the observation of Rabi-flopping of a single dipole transition…

Mesoscale and Nanoscale Physics · Physics 2015-05-19 C. -M. Simon , T. Belhadj , B. Chatel , T. Amand , P. Renucci , A. Lemaitre , O. Krebs , P. A. Dalgarno , R. J. Warburton , X. Marie , B. Urbaszek

Strong coupling of photons and materials in semiconductor nanocavity systems has been investigated because of its potentials in quantum information processing and related applications, and has been testbeds for cavity quantum…

Other Condensed Matter · Physics 2015-05-13 M. Nomura , N. Kumagai , S. Iwamoto , Y. Ota , Y. Arakawa

We propose two-mode two-photon microlaser using a single semiconductor quantum dot grown inside a two-mode microcavity. We explore both incoherent and coherent pumping at low temperatures to achieve suitable conditions for two-mode…

Quantum Physics · Physics 2024-05-07 Samit Kumar Hazra , Lava Kumar Addepalli , P. K. Pathak , Tarak Nath Dey

We numerically investigate the complex nonlinear dynamics for two independently coupled laser systems consisting of (i) mutually delay-coupled edge emitting diode lasers and (ii) injection-locked quantum nano-structures lasers. A…

Optics · Physics 2015-06-12 Pramod Kumar , Frédéric Grillot

In this paper possibilities of a stabilization of large amplitude fluctuations in an intracavity-doubled solid-state laser are studied. The modification of the cross-saturation coefficient by the effect of spatial hole-burning is taken into…

Chaotic Dynamics · Physics 2015-06-26 Monika E. Pietrzyk , Miltcho B. Danailov

Semiconductor lasers have great potential for space laser communication. However, excessive radiation in space can cause laser failure. In principle, quantum dot (QD) lasers are more radiation-resistant than traditional semiconductor lasers…

We theoretically explore optical bistability for possible signature of all optical switching and their performance in a hybrid quantum optomechanical system comprising of two semiconductor microcavity coupled optically. One of the cavity is…

Quantum Physics · Physics 2019-12-02 Vijay Bhatt , Sabur A. Barbhuiya , Pradip K. Jha , Aranya B. Bhattacherjee

A holy grail of photonics research is the realization of a laser that uses a single quantum emitter as the gain medium. Such a device would exhibit a plethora of new features, including lasing without a well-defined threshold and output…

Mesoscale and Nanoscale Physics · Physics 2010-11-24 J. M. Elzerman , K. M. Weiss , J. Miguel-Sanchez , A. Imamoglu