Terahertz semiconductor-heterostructure laser
Web2 Nov 2024 · Köhler, R. et al. Terahertz semiconductor-heterostructure laser. Nature 417, 156–159 (2002). Article ADS Google Scholar Siles, J. V. et al. A new generation of room-temperature frequency ... Web1 Jan 2024 · One of the electrically pumped solid-state lasers is a P-type germanium laser. One of the semiconductor heterostructure lasers is a quantum cascade laser (QCL). This type of heterostructure laser is formed by periodically alternating layers of dissimilar semiconductors. THz photons are involved in transitions between subbands of these ...
Terahertz semiconductor-heterostructure laser
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Webfabricate a terahertz semiconductor laser. Although electrolumines-cent devices have been reported by several groups11–14, laser action has been shown only at much shorter … Web24 May 2002 · Terahertz semiconductor-heterostructure lasers. Abstract: Injection lasers based on interminiband transitions in GaAs/AlGaAs heterostructures are operated in the …
Web9 May 2002 · Here we report a monolithic terahertz injection laser that is based on interminiband transitions in the conduction band of a semiconductor (GaAs/AlGaAs) … Web16 Dec 2024 · We compare the performance of 10 and 5 μm thick metal–metal waveguide terahertz quantum-cascade laser ridges operating around 2.7 THz and based on a 4-well phonon depopulation active region design.Thanks to reduced heat dissipation and lower thermal resistance, the 5 μm thick material shows an 18 K increase in continuous wave …
WebTerahertz semiconductor-heterostructure lasers Rudeger Kohler, Alessandro Tredicucci, Fabio Beltram ... OCIS Codes: (140.3070) Infrared and far-infrared lasers; (140.5960) … Web8 May 2002 · Semiconductor devices have become indispensable for generating electromagnetic radiation in everyday applications. Visible and infrared diode lasers are at the core of information technology, and at the other end of the spectrum, microwave and radio-frequency emitters enable wireless communications. But the terahertz region (1-10 …
WebIn this article we report on metamaterial-based narrowband thermal terahertz (THz) emitters with a bandwidth of about 1 THz. Single band emitters designed to radiate in the 4 to 8 THz range were found to emit as high as 36 W/m2 when operated at 400 °C. Emission into two well-separated THz bands was also demonstrated by using metamaterial structures …
Web1 May 2002 · Abstract. Semiconductor devices have become indispensable for generating electromagnetic radiation in everyday applications. Visible and infrared diode lasers are at the core of information technology, and at the other end of the spectrum, microwave and radio-frequency emitters enable wireless communications. But the terahertz region (1-10 … subway receiptWeb9 Jan 2024 · The total effective laser power of the terahertz beams is measured by a thermal power-meter under the modulation state. The highest value of the laser effective output power is about 1.4 W at a driving current of 19.3 A and a duty cycle of 1%. ... Köhler, R., Tredicucci, A., Beltram, F., et al: ‘ Terahertz semiconductor-heterostructure laser ... subway real estate corpWeb8 May 2002 · Semiconductor devices have become indispensable for generating electromagnetic radiation in everyday applications. Visible and infrared diode lasers are at … painting a backsplash ideasWeb28 Aug 2014 · For example, the articles 'Terahertz semiconductor-heterostructure laser' , 'Cutting-edge terahertz technology' , 'Terahertz technology' and 'Materials for terahertz science and technology' have each been cited more than 1000 times. 1.1.3. Monographs are now emerging. The field has sufficiently matured such that monographs are now … subway receipt codeWebIn this article we report on metamaterial-based narrowband thermal terahertz (THz) emitters with a bandwidth of about 1 THz. Single band emitters designed to radiate in the 4 to 8 … subway real estate corporationWebA quantum-cascade laser (QCL) emits photons due to electronic intersubband transitions in the quantum-wells of a semiconductor heterostructure. The operation of terahertz QCLs … subway real estateWeb1 Jun 2013 · In physics, terahertz radiation, also called submillimeter radiation, terahertz waves, terahertz light, T-rays, T-waves, T-light, T-lux, or THz, consists of electromagnetic waves at frequencies from 0.3 to 10 terahertz (THz). The term applies to electromagnetic radiation with frequencies between the high-frequency edge of the millimeter wave ... subway receipt printer not working