@inproceedings{f0dfedcf11be4cd1af6c9a81c2920ec7,
title = "Optical Pumping of Graphene-Based Heterostructures with Black-Arsenic-Phosphorus Absorbing-Cooling Layer for Terahertz Lasing",
abstract = "We evaluate the optical pumping efficiency of the graphene-layer (GL) heterostructures intended for the terahertz (THz) lasing using the interband transitions in the GL. The pumping of such by near- or mid-infrared (NIR or MIR) radiation leads to the creation of a substantially hot two-dimensional electron-hole plasma (2D-EHP) in the GL. This hampers the interband population inversion in the 2D-EHP and can suppress the THz lasing. To prevent the 2D-EHP overheating, we propose to use the NIR/MIR radiation pumping of the GL through a sufficiently thick layer absorbing this radiation. This layer with sufficiently small energy gap enables an increase in the quantum efficiency of the pumping accompanied by strong cooling of the electron-hole pairs injected into the GL. As shown, the absorbing-cooling layers made of black-arsenic-phosphorus can be fairly efficient if their energy gap is smaller than the optical phonon energy in the GL.",
keywords = "Black arsenic-phosphorus, carrier cooling, graphene, injection, light-emitting diode, terahertz lasing",
author = "Maxim Ryzhii and Victor Ryzhii and Taiichi Otsuji and Vladimir Mitin and Shur, \{Michael S.\}",
note = "Publisher Copyright: {\textcopyright} 2019 IEEE.; 2019 IEEE International Conference on Microwaves, Antennas, Communications and Electronic Systems, COMCAS 2019 ; Conference date: 04-11-2019 Through 06-11-2019",
year = "2019",
month = nov,
doi = "10.1109/COMCAS44984.2019.8958394",
language = "English",
series = "2019 IEEE International Conference on Microwaves, Antennas, Communications and Electronic Systems, COMCAS 2019",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
booktitle = "2019 IEEE International Conference on Microwaves, Antennas, Communications and Electronic Systems, COMCAS 2019",
address = "United States",
}