title: Coherent detection of THz waves based on THz-induced time-resolved luminescence quenching in bulk gallium arsenide.
abstract: A kind of photoluminescence quenching, in which the time-resolved photoluminescence is modulated by a THz pulse, has been theoretically investigated by performing the ensemble Monte Carlo method in bulk gallium arsenide (GaAs) at room temperature. The quenching ratio could reach up to 50% under a strong THz field (100  kV/cm). The range in which luminescence quenching is linearly proportional to the THz field could be over 60  kV/cm. On the basis of these results, a principle for THz modulation and coherent detection is proposed.
authors.affiliation: Wuhan National Laboratory for Optoelectronics, School of Optoelectronic Science and Engineering, Huazhong University of Science and Technology, Wuhan, China.
authors.forename: Zheng
authors.initials: Z
authors.lastname: Chu
authors.forename: Jinsong
authors.initials: J
authors.lastname: Liu
authors.forename: Kejia
authors.initials: K
authors.lastname: Wang