Keywords: graphene; hot-carrier effects; plasmonics; terahertz optoelectronics 1 Introduction The terahertz (THz) spectral region, often defined as the frequency range between 300 GHz and 10 THz (i. e., the wavelength range between 1 mm and 30 μm), is still largely underutilized due to the...
Particularly, the principles of electro-optical and all-optical modulators are illustrated. Additionally, the limitation of GOMs and possible methods to improve performance and practicability are discussed. At last, graphene terahertz modulators (GTMs) are introduced. 展开 关键词:...
Surface impedance, Metasurface, GrapheneUnderstanding and manipulation of surface impedance in graphene hybrid structure is a significant issue for applications of graphene-based optoelectronics devices. In order to achieve this purpose in the terahertz region, analytical expressions for the impedances of ...
Ryzhii, V., Ryabova, N., Ryzhii, M., Baryshnikov, N.V., Karasik, V.E., Mitin, V., Otsuji, T.: Terahertz and infrared photodetectors based on multiple graphene and nanoribbon structures. Opto Electron. Rev. 20(1), 15-25 (2012)...
M. et al. Measurement of the optical absorption spectra of epitaxial graphene from terahertz to visible. Appl. Phys. Lett. 93, 131905 (2008). Google Scholar Schuler, S. et al. Controlled generation of a pn-junction in a waveguide integrated graphene photodetector. Nano Lett. 16, 7107–...
Graphene-based terahertz optoelectronics 2022 Elsevier LtdGraphene is a new material with a single-layer two-dimensional (2D) honeycomb lattice structure. It has excellent optical, electrical and ... Zhou Q.,Qiu Q.,Huang Z. - 《Optics & Laser Technology》 被引量: 0发表: 2023年 Highly Effici...
Integrated graphene-based PDs with high-speed (~500 GHz3) performance, compact footprint, and high responsivity are significant for microwave photonics9, terahertz communication10, and optical communication11. In the field of waveguide-integrated graphene-based PDs, different mechanisms (photovoltaic12...
—6.theBeijingNaturalScienceFoundationunderGrantNo.KZ20l1l0028035.theProgramforNewCenturyExcellentTalentsinUniversityunderGrantNo.NCET.12.0607.andtheCAEPTHzScieneeandTechnoloFoundation.M.一x.FuiswithBeijingKeyLaboratoryforTerahertzSpectroscopyandImaging,KeyLaboratoryofTerahertzOptoelectronics,MinistryofEducationand...
L. Koppens Nature Communications (2024) Impact of device resistances in the performance of graphene-based terahertz photodetectors O. Castelló Sofía M. López Baptista J. A. Delgado-Notario Frontiers of Optoelectronics (2024)Download PDF Sections Figures References Abstract Introduction Results ...
optoelectronics, where the combination of its unique optical and electronic properties can be fully exploited, even in the absence of a bandgap, and the linear dispersion of the Dirac electrons enables ultrawideband tunability. The rise of graphene in photonics and optoelectronics is shown by several...