Zobrazeno 1 - 10
of 84
pro vyhledávání: '"Xiaoqiong, Qi"'
Publikováno v:
APL Photonics, Vol 8, Iss 11, Pp 116102-116102-10 (2023)
This study investigates the interaction between frequency combs and optical feedback effects in Quantum Cascade Lasers (QCLs). The theoretical analysis reveals new phenomena arising from the interplay between comb generation and feedback. By consider
Externí odkaz:
https://doaj.org/article/bbecdbbcaefd4d84bc59350661421ee8
Publikováno v:
APL Photonics, Vol 8, Iss 2, Pp 020902-020902-17 (2023)
Over the past decade, the demonstration of frequency combs has been reported in a wide range of quantum cascade lasers. These combs have huge potential in applications, including spectroscopy, sensing, imaging, and communication domains. In this pers
Externí odkaz:
https://doaj.org/article/69d12fa8f4d8425786c0404853bf2bf1
Publikováno v:
Micromachines, Vol 13, Iss 12, p 2063 (2022)
Quantum cascade lasers (QCLs) have broken the spectral barriers of semiconductor lasers and enabled a range of applications in the mid-infrared (MIR) and terahertz (THz) regimes. However, until recently, generating ultrashort and intense pulses from
Externí odkaz:
https://doaj.org/article/9f2f283453ed440b96f5f0edd09b5bd6
Publikováno v:
Sensors, Vol 22, Iss 22, p 9001 (2022)
In this article, we revisit the concept of optical feedback regimes in diode lasers and explore each regime experimentally from a somewhat unconventional point of view by relating the feedback regimes to the laser bias current and its optical feedbac
Externí odkaz:
https://doaj.org/article/7764ed378ab64f00bb8ab99dcd700ca0
Publikováno v:
Sensors, Vol 22, Iss 21, p 8501 (2022)
We have recently reported the self-pulsation phenomenon under strong optical feedback in terahertz (THz) quantum cascade lasers (QCLs). One important issue, however, we left open: the effect of multiple round trips in the external cavity on the laser
Externí odkaz:
https://doaj.org/article/6e334f2d2aa143e396f4933d8a2e53eb
Autor:
Xiaoqiong Qi, Karl Bertling, Thomas Taimre, Yah Leng Lim, Tim Gillespie, Paul Dean, Lian He Li, Edmund H. Linfield, A. Giles Davies, Dragan Indjin, Aleksandar D. Rakić
Publikováno v:
APL Photonics, Vol 6, Iss 9, Pp 091301-091301-6 (2021)
The phenomenon of self-pulsation (SP) in terahertz (THz) quantum cascade lasers (QCLs) due to optical feedback was reported recently. In this Letter, we propose a THz imaging modality using the SP phenomenon in a THz QCL. We explore the theoretical o
Externí odkaz:
https://doaj.org/article/0ae56370b7744a9b83afbb8405aa4e8b
Autor:
Iman Kundu, Feihu Wang, Xiaoqiong Qi, Hanond Nong, Paul Dean, Joshua R. Freeman, Alexander Valavanis, Gary Agnew, Andrew T. Grier, Thomas Taimre, Lianhe Li, Dragan Indjin, Juliette Mangeney, Jérôme Tignon, Sukhdeep S. Dhillon, Aleksandar D. Rakić, John E. Cunningham, Edmund H. Linfield, A. Giles Davies
Publikováno v:
Nature Communications, Vol 9, Iss 1, Pp 1-8 (2018)
Single-mode, tuneable monolithic semiconductor lasers are important light sources for integrated photonics. Here, Kundu et al. observe the switch-on dynamics and mode competition of a terahertz quantum cascade laser and explain the behaviour with a c
Externí odkaz:
https://doaj.org/article/984322cdb0e7401b9d2a32e861ee7325
Publikováno v:
Mitochondrial DNA. Part B. Resources, Vol 5, Iss 3, Pp 3425-3426 (2020)
Actinidia latifolia, known for its high vitamin C content in fruits, is widely distributed in the subtropical and tropical regions of eastern and southern Asia. In this study, we sequenced the complete chloroplast (cp) genome sequence of A. latifolia
Externí odkaz:
https://doaj.org/article/5f8d317dafc847f4a1a24137532c2c97
Publikováno v:
Mitochondrial DNA. Part B. Resources, Vol 5, Iss 3, Pp 3420-3421 (2020)
Actinidia callosa var. strigillosa is one of the endangered Actinidia species scattering across mountain areas in southwest China. Here, we assembled and characterized the complete chloroplast (cp) genome sequence of A. strigillosa to provide genomic
Externí odkaz:
https://doaj.org/article/a80482d4cbc14032830a94a726abce5e
Autor:
Feihu Wang, Xiaoqiong Qi, Valentino Pistore, Lianhe Li, Gary Agnew, Edmund Linfield, Giles Davies, Jérôme Tignon, Juliette Mangeney, Aleksandar D. Rakić, Sukhdeep S. Dhillon
Publikováno v:
Physical Review Applied. 18
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::de12093f8f409bdd0b8204f211534928
https://doi.org/10.1103/physrevapplied.18.064054
https://doi.org/10.1103/physrevapplied.18.064054