Toward high-frequency operation of spin lasers

Abstract

Injecting spin-polarized carriers into semiconductor lasers provides important opportunities to extend what is known about spintronic devices, as well as to overcome many limitations of conventional (spin-unpolarized) lasers. By developing a microscopic model of spin-dependent optical gain derived from an accurate electronic structure in a quantum well-based laser, we study how its operation properties can be modified by spin-polarized carriers, carrier density, and resonant cavity design. We reveal that by applying a uniaxial strain, it is possible to attain a large birefringence. While such birefringence is viewed as detrimental in conventional lasers, it could enable fast polarization oscillations of the emitted light in spin lasers which can be exploited for optical communication and high-performance interconnects. The resulting oscillation frequency ($>200$ GHz) would significantly exceed the frequency range possible in conventional lasers.

15 pages, 14 figures

References in corpus (13)

• Dissipationless Quantum Spin Current at Room Temperature
• Deterministic polarization chaos from a laser diode
• Determination of Interface Atomic Structure and Its Impact on Spin Transport Using Z-Contrast Microscopy and Density-Functional Theory
• Analytical Model of Spin-Polarized Semiconductor Lasers
• Coherent control of nanomagnet dynamics via ultrafast spin torque pulses
• A phonon laser utilizing quantum-dot spin states
• Tailoring Chirp in Spin-Lasers
• A spin light emitting diode incorporating ability of electrical helicity switching
• Spin-polarized lasing in a highly photoexcited semiconductor microcavity
• A Room-temperature Spin-polarized Polariton Laser
• Theory of quantum dot spin-lasers
• Interband polarized absorption in InP polytypic superlattices
• Nodal "ground states" and orbital textures in semiconductor quantum dots

Cited by in corpus (17)

• Ultrafast spin-lasers
• Spin-Lasers: Spintronics Beyond Magnetoresistance
• Dynamical screening in monolayer transition-metal dichalcogenides and its manifestations in the exciton spectrum
• $k\cdot p$ theory for phosphorene: Effective g-factors, Landau levels, and excitons
• Spin-orbit coupling effects in zinc-blende InSb and wurtzite InAs nanowires: Realistic calculations with multiband $\vec{k}\cdot \vec{p}$ method
• Wurtzite spin lasers
• VASP2KP: kp models and Lande g-factors from ab initio calculations
• Persistent spin textures and currents in wurtzite nanowire-based quantum structures
• Common nonlinear features and spin-orbit coupling effects in the Zeeman splitting of novel wurtzite materials
• Enhanced longevity of the spin helix in low-symmetry quantum wells
• Polarization Modulation in Quantum-Dot Spin-VCSELs for Ultrafast Data Transmission
• Spin relaxation in wurtzite nanowires
• DFT2kp: effective kp models from ab-initio data
• Intensity equations for birefringent spin lasers
• Threshold behavior in spin lasers: Spontaneous emission and nonlinear gain
• Polarization response of spin-lasers under amplitude modulation
• The birefringent spin-laser as a system of coupled harmonic oscillators