TY - JOUR
T1 - Optical Transistor for Amplification of Radiation in a Broadband Terahertz Domain
AU - Villegas, K. H.A.
AU - Kusmartsev, F. V.
AU - Luo, Y.
AU - Savenko, I. G.
N1 - Publisher Copyright:
© 2020 American Physical Society.
PY - 2020/2/26
Y1 - 2020/2/26
N2 - We propose a new type of optical transistor for a broadband amplification of terahertz radiation. It is made of a graphene-superconductor hybrid, where electrons and Cooper pairs couple by Coulomb forces. The transistor operates via the propagation of surface plasmons in both layers, and the origin of amplification is the quantum capacitance of graphene. It leads to terahertz waves amplification, the negative power absorption, and as a result, the system yields positive gain, and the hybrid acts like an optical transistor, operating with the terahertz light. It can, in principle, amplify even a whole spectrum of chaotic signals (or noise), which is required for numerous biological applications.
AB - We propose a new type of optical transistor for a broadband amplification of terahertz radiation. It is made of a graphene-superconductor hybrid, where electrons and Cooper pairs couple by Coulomb forces. The transistor operates via the propagation of surface plasmons in both layers, and the origin of amplification is the quantum capacitance of graphene. It leads to terahertz waves amplification, the negative power absorption, and as a result, the system yields positive gain, and the hybrid acts like an optical transistor, operating with the terahertz light. It can, in principle, amplify even a whole spectrum of chaotic signals (or noise), which is required for numerous biological applications.
UR - http://www.scopus.com/inward/record.url?scp=85081790550&partnerID=8YFLogxK
U2 - 10.1103/PhysRevLett.124.087701
DO - 10.1103/PhysRevLett.124.087701
M3 - 文章
C2 - 32167339
AN - SCOPUS:85081790550
SN - 0031-9007
VL - 124
JO - Physical Review Letters
JF - Physical Review Letters
IS - 8
M1 - 087701
ER -