Terahertz quantum cascade lasers with >1 W output powers
Terahertz (THz) frequency quantum cascade lasers emitting peak powers of >1 W from a single facet in the pulsed mode are demonstrated. The active region is based on a bound-to-continuum transition with a one-well injector, and is embedded into a surface-plasmon waveguide. The lasers emit at a fre...
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| Vydané v: | Electronics letters Ročník 50; číslo 4; s. 309 - 311 |
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| Hlavní autori: | , , , , , , , |
| Médium: | Journal Article |
| Jazyk: | English |
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Stevenage
The Institution of Engineering and Technology
13.02.2014
Institution of Engineering and Technology John Wiley & Sons, Inc |
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| ISSN: | 0013-5194, 1350-911X, 1350-911X |
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| Abstract | Terahertz (THz) frequency quantum cascade lasers emitting peak powers of >1 W from a single facet in the pulsed mode are demonstrated. The active region is based on a bound-to-continuum transition with a one-well injector, and is embedded into a surface-plasmon waveguide. The lasers emit at a frequency of ∼3.4 THz and have a maximum operating temperature of 123 K. The maximum measured emitted powers are ∼1.01 W at 10 K and ∼420 mW at 77 K, with no correction made to allow for the optical collection efficiency of the apparatus. |
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| AbstractList | Terahertz (THz) frequency quantum cascade lasers emitting peak powers of >1 W from a single facet in the pulsed mode are demonstrated. The active region is based on a bound-to-continuum transition with a one-well injector, and is embedded into a surface-plasmon waveguide. The lasers emit at a frequency of ∼3.4 THz and have a maximum operating temperature of 123 K. The maximum measured emitted powers are ∼1.01 W at 10 K and ∼420 mW at 77 K, with no correction made to allow for the optical collection efficiency of the apparatus. Terahertz (THz) frequency quantum cascade lasers emitting peak powers of >1 W from a single facet in the pulsed mode are demonstrated. The active region is based on a bound-to-continuum transition with a one-well injector, and is embedded into a surface-plasmon waveguide. The lasers emit at a frequency of ~3.4 THz and have a maximum operating temperature of 123 K. The maximum measured emitted powers are ~1.01 W at 10 K and ~420 mW at 77 K, with no correction made to allow for the optical collection efficiency of the apparatus. Terahertz (THz) frequency quantum cascade lasers emitting peak powers of >1 W from a single facet in the pulsed mode are demonstrated. The active region is based on a bound-to-continuum transition with a one-well injector, and is embedded into a surface-plasmon waveguide. The lasers emit at a frequency of ~3.4 THz and have a maximum operating temperature of 123 K. The maximum measured emitted powers are ~1.01 W at 10 K and ~420 mW at 77 K, with no correction made to allow for the optical collection efficiency of the apparatus. [PUBLICATION ABSTRACT] Terahertz (THz) frequency quantum cascade lasers emitting peak powers of >1 W from a single facet in the pulsed mode are demonstrated. The active region is based on a bound‐to‐continuum transition with a one‐well injector, and is embedded into a surface‐plasmon waveguide. The lasers emit at a frequency of ∼3.4 THz and have a maximum operating temperature of 123 K. The maximum measured emitted powers are ∼1.01 W at 10 K and ∼420 mW at 77 K, with no correction made to allow for the optical collection efficiency of the apparatus. |
| Author | Davies, A.G Zhu, Jingxuan Dean, P Linfield, E.H Li, Lianhe Valavanis, A Freeman, J Chen, Li |
| Author_xml | – sequence: 1 givenname: Lianhe surname: Li fullname: Li, Lianhe email: l.h.li@leeds.ac.uk organization: School of Electronic and Electrical Engineering, University of Leeds, Leeds, LS2 9JT, United Kingdom – sequence: 2 givenname: Li surname: Chen fullname: Chen, Li organization: School of Electronic and Electrical Engineering, University of Leeds, Leeds, LS2 9JT, United Kingdom – sequence: 3 givenname: Jingxuan surname: Zhu fullname: Zhu, Jingxuan organization: School of Electronic and Electrical Engineering, University of Leeds, Leeds, LS2 9JT, United Kingdom – sequence: 4 givenname: J surname: Freeman fullname: Freeman, J organization: School of Electronic and Electrical Engineering, University of Leeds, Leeds, LS2 9JT, United Kingdom – sequence: 5 givenname: P surname: Dean fullname: Dean, P organization: School of Electronic and Electrical Engineering, University of Leeds, Leeds, LS2 9JT, United Kingdom – sequence: 6 givenname: A surname: Valavanis fullname: Valavanis, A organization: School of Electronic and Electrical Engineering, University of Leeds, Leeds, LS2 9JT, United Kingdom – sequence: 7 givenname: A.G surname: Davies fullname: Davies, A.G organization: School of Electronic and Electrical Engineering, University of Leeds, Leeds, LS2 9JT, United Kingdom – sequence: 8 givenname: E.H surname: Linfield fullname: Linfield, E.H organization: School of Electronic and Electrical Engineering, University of Leeds, Leeds, LS2 9JT, United Kingdom |
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| Copyright | 2020 The Institution of Engineering and Technology 2015 INIST-CNRS Copyright The Institution of Engineering & Technology Feb 13, 2014 |
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| Keywords | laser modes temperature 77 K temperature 10 K laser output powers microwave photonics surface plasmons waveguide lasers pulsed mode temperature 123 K surface-plasmon waveguide THz QCL quantum cascade lasers bound-to-continuum transition one-well injector laser beams terahertz frequency quantum cascade lasers optical collection efficiency power 420 mW terahertz wave devices frequency 3.4 THz power 1.01 W Continuum THz range Semiconductor lasers Output power Infrared laser Injector Waveguides Transition Peak power Surface plasmons Quantum cascade laser |
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| Snippet | Terahertz (THz) frequency quantum cascade lasers emitting peak powers of >1 W from a single facet in the pulsed mode are demonstrated. The active region is... |
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| SubjectTerms | bound‐to‐continuum transition Collection Collective excitations (including excitons, polarons, plasmons and other charge-density excitations) Condensed matter: electronic structure, electrical, magnetic, and optical properties Electronic structure and electrical properties of surfaces, interfaces, thin films and low-dimensional structures Emittance Exact sciences and technology frequency 3.4 THz Fundamental areas of phenomenology (including applications) Injectors laser beams laser modes laser output powers Lasers microwave photonics one‐well injector Operating temperature optical collection efficiency Optics Photonics Physics power 1.01 W power 420 mW pulsed mode Quantum cascade lasers Semiconductor lasers; laser diodes Surface and interface electron states surface plasmons surface‐plasmon waveguide temperature 10 K temperature 123 K temperature 77 K terahertz frequency quantum cascade lasers terahertz wave devices THz QCL waveguide lasers Waveguides |
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| Title | Terahertz quantum cascade lasers with >1 W output powers |
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