Electron-lattice coupling in bound-to-continuum THz quantum-cascade lasers

Miriam S. Vitiello; Gaetano Scamarcio; Vincenzo Spagnolo; Tonia Losco; Richard P. Green; Alessandro Tredicucci; Harvey E. Beere; D. A. Ritchie

doi:10.1063/1.2211301

Abstract

We measured the thermal resistance (R=20.1K∕W) and the electrical power dependence of the electronic temperature (Re=27.0K∕W) of THz quantum-cascade lasers (QCLs) with bound-to-continuum active region scheme in the lattice temperature range of 30–100K. This information, obtained from the analysis of microprobe photoluminescence spectra for QCLs operating at 2.5THz, gives an electron-lattice energy relaxation rate (0.1ps−1) ∼50 times lower than THz QCLs with resonant-phonon active region scheme.

Keywords

CascadeTerahertz radiationPhotoluminescenceLaserCondensed matter physicsElectronPhononLattice (music)Materials scienceAtomic physicsOptoelectronicsPhysicsChemistryOptics

Affiliated Institutions

Related Publications

Observation of Anomalous Phonon Softening in Bilayer Graphene

Jun Yan , Erik Henriksen , Philip Kim +1 more

The interaction of electron-hole pairs with lattice vibrations exhibits a wealth of intriguing physical phenomena such as the renowned Kohn anomaly. Here we report the observati...

2008 Physical Review Letters 176 citations

Electric Field Effect Tuning of Electron-Phonon Coupling in Graphene

Jun Yan , Yuanbo Zhang , Philip Kim +1 more

Gate-modulated low-temperature Raman spectra reveal that the electric field effect (EFE), pervasive in contemporary electronics, has marked impacts on long-wavelength optical ph...

2007 Physical Review Letters 1116 citations

A two-temperature model of radiation damage in α-quartz

Carolyn L. Phillips , Rudolph J Magyar , Paul Crozier

Two-temperature models are used to represent the physics of the interaction between atoms and electrons during thermal transients such as radiation damage, laser heating, and ca...

2010 The Journal of Chemical Physics 32 citations

Quantum Cascade Surface-Emitting Photonic Crystal Laser

R. Colombelli , Kartik Srinivasan , Mariano Troccoli +7 more

We combine photonic and electronic band structure engineering to create a surface-emitting quantum cascade microcavity laser. A high-index contrast two-dimensional photonic crys...

2003 Science 283 citations

<i>Ab initio</i>molecular dynamics for<i>d</i>-electron systems: Liquid copper at 1500 K

Alfredo Pasquarello , Kari Laasonen , Roberto Car +2 more

We show than an ab initio molecular-dynamics scheme based on Vanderbilt ultrasoft pseudopotentials and a plane-wave expansion for the electronic orbitals allows one to perform a...

1992 Physical Review Letters 356 citations

Publication Info

Year: 2006
Type: article
Volume: 88
Issue: 24
Citations: 42
Access: Closed

External Links

View on DOI.org

Social Impact

Altmetric

Electron-lattice coupling in bound-to-continuum THz quantum-cascade lasers

PlumX Metrics

Social media, news, blog, policy document mentions

Citation Metrics

OpenAlex

Cite This

APA Style

                            
                                
                                    Miriam S. Vitiello, 
                                
                                    Gaetano Scamarcio, 
                                
                                    Vincenzo Spagnolo
                                
                                et al.
                            
                            (2006). 
                            Electron-lattice coupling in bound-to-continuum THz quantum-cascade lasers. 
                            Applied Physics Letters
                            , 88
                            (24)
                            .
                            https://doi.org/10.1063/1.2211301
                        

Identifiers

DOI: 10.1063/1.2211301