Open AccessЗамедление терагерцовых плазменных волн в конической структуре с графеном, накачиваемым с помощью оптических плазменных волн
Author(s) -
М.Ю. Морозов,
И.М. Моисеенко,
А.В. Коротченков,
В.В. Попов
Publication year - 2021
Publication title -
fizika i tehnika poluprovodnikov
Language(s) - English
Resource type - Journals
eISSN - 1726-7315
pISSN - 0015-3222
DOI - 10.21883/ftp.2021.06.50920.9525
Subject(s) - plasmon , terahertz radiation , graphene , materials science , surface plasmon , optics , optoelectronics , plasma , phase velocity , physics , nanotechnology , quantum mechanics
Deceleration of terahertz (THz) plasma waves (plasmons) in tapered structure with graphene layer pumped by optical plasmons is studied theoretically. It is shown, that THz plasma wave is decelerated when moving toward the structure apex. Deceleration of THz plasmons in tapered structure with graphene layer pumped by optical plasmons is more efficient as compared to deceleration of THz plasmons in tapered structure with graphene screened by metal without pumping by optical plasmons for the same parameter values of the structure. The plasmon phase velocity near the taper apex can become an order of magnitude smaller as compared to that value in the input of the structure for achievable power densities of the optical plasmon.