Phase effects due to previous pulses in time-resolved Faraday rotation measurements
arXiv:1501.06963 · doi:10.1063/1.4907912
Abstract
Time-resolved Faraday rotation measurements have proved transformative in the investigation of spin dynamics in semiconductors. In materials with spin lifetimes which are on the order of, or greater than, the laser repetition time, the collective effect of spin polarization due to the whole pump pulse train becomes important. Here, we discuss a relative phase shift which results from these spins. We derive and experimentally validate a closed-form expression which describes this phase shift, and characterize it throughout parameter space. A spin lifetime measurement based on this phase shift is described, and we discuss situations in which the model used must be augmented to be applicable
arXiv comment6 pages, with 5 figures
References in corpus (7)
- Coherent spin dynamics of electrons and holes in semiconductor quantum wells and quantum dots under periodical optical excitation: resonant spin amplification versus spin mode-locking
- Electric field-driven coherent spin reorientation of optically generated electron spin packets in InGaAs
- Mapping spin-orbit splitting in strained InGaAs epilayers
- Dynamic nuclear polarization from current-induced electron spin polarization
- All-electrical time-resolved spin generation and spin manipulation in n-InGaAs
- Unambiguous determination of spin dephasing times in ZnO
- Phase effects due to previous pulses in time-resolved Faraday rotation measurements
Cited by in corpus (3)
- Dynamic Nuclear Polarization by optical Stark effect in periodically-pumped gallium arsenide
- Observation of magnetic-field-sweep-direction-dependent dynamic nuclear polarization under periodic optical electron spin pumping
- Phase effects due to previous pulses in time-resolved Faraday rotation measurements