Title :
Graphene terahertz sources and amplifiers
Author :
Rana, Farhan ; George, Paul A. ; Strait, Jared H. ; Dawlaty, Jahan
Author_Institution :
Cornell Univ., Ithaca, NY
Abstract :
Plasmons in population inverted graphene can experience extremely large gain through the process of stimulated emission at terahertz frequencies. The large gain values and the small plasmon wavelengths can lead to compact terahertz plasmon lasers and amplifiers that are only a few microns in size. We present optical and terahertz spectroscopy results for carrier relaxation and recombination dynamics in graphene and discuss designs for terahertz plasmon lasers and practical schemes for achieving population inversion in graphene.
Keywords :
graphene; plasmons; population inversion; submillimetre wave amplifiers; submillimetre wave spectra; C; amplifiers; carrier recombination dynamics; carrier relaxation; graphene; optical spectroscopy; population inversion; terahertz plasmon lasers; terahertz sources; terahertz spectroscopy; Atomic layer deposition; Charge carrier processes; Dispersion; Frequency; Optical amplifiers; Optical propagation; Optical scattering; Plasmons; Propagation losses; Stimulated emission;
Conference_Titel :
Infrared, Millimeter and Terahertz Waves, 2008. IRMMW-THz 2008. 33rd International Conference on
Conference_Location :
Pasadena, CA
Print_ISBN :
978-1-4244-2119-0
Electronic_ISBN :
978-1-4244-2120-6
DOI :
10.1109/ICIMW.2008.4665601
