Records |
Author |
Dorenbos, S. N.; Reiger, E. M.; Perinetti, U.; Zwiller, V.; Zijlstra, T.; Klapwijk, T. M. |
Title |
Low noise superconducting single photon detectors on silicon |
Type |
Journal Article |
Year |
2008 |
Publication |
Applied Physics Letters |
Abbreviated Journal |
Appl. Phys. Lett. |
Volume |
93 |
Issue |
13 |
Pages |
131101 |
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0003-6951 |
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RPLAB @ s @ |
Serial |
436 |
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Author |
An, Zhenghua; Chen, Jeng-Chung; Ueda, T.; Komiyama, S.; Hirakawa, K. |
Title |
Infrared phototransistor using capacitively coupled two-dimensional electron gas layers |
Type |
Journal Article |
Year |
2005 |
Publication |
Applied Physics Letters |
Abbreviated Journal |
Appl. Phys. Lett. |
Volume |
86 |
Issue |
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Pages |
172106 - 172106-3 |
Keywords |
2DEG |
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RPLAB @ akorneev @ |
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603 |
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Author |
Sprengers, J. P.; Gaggero, A.; Sahin, D.; Jahanmirinejad, S.; Frucci, G.; Mattioli, F.; Leoni, R.; Beetz, J.; Lermer, M.; Kamp, M.; Höfling, S.; Sanjines, R.; Fiore A. |
Title |
Waveguide superconducting single-photon detectors for integrated quantum photonic circuits |
Type |
Journal Article |
Year |
2011 |
Publication |
Applied Physics Letters |
Abbreviated Journal |
Appl. Phys. Lett. |
Volume |
99 |
Issue |
18 |
Pages |
181110(1-3) |
Keywords |
optical waveguides, waveguide SSPD |
Abstract |
The monolithic integration of single-photon sources, passive optical circuits, and single-photon detectors enables complex and scalable quantum photonic integrated circuits, for application in linear-optics quantum computing and quantum communications. Here, we demonstrate a key component of such a circuit, a waveguide single-photon detector. Our detectors, based on superconducting nanowires on GaAs ridge waveguides, provide high efficiency (~0%) at telecom wavelengths, high timing accuracy (~0 ps), and response time in the ns range and are fully compatible with the integration of single-photon sources, passive networks, and modulators. |
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847 |
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Author |
Sekine, Norihiko; Hosako, Iwao |
Title |
Intensity modulation of terahertz quantum cascade lasers under external light injection |
Type |
Journal Article |
Year |
2009 |
Publication |
Applied Physics Letters |
Abbreviated Journal |
Appl. Phys. Lett. |
Volume |
95 |
Issue |
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Pages |
201106(1-3) |
Keywords |
QCL modulation, THz, terahertz |
Abstract |
We investigated the light-current characteristics of terahertz (THz) quantum cascade lasers under external light injection, which excites interband transitions in the active materials. It was found that the amount of reduction in the THz power was constant for all injection currents above threshold, and the dependence of the reduction amount on the wavelength of the external light was observed to show a resonancelike feature. The dominant intensity modulation mechanism was found to be the loss change caused by interband transitions in the active region. Further, the effective coupling efficiency plays an important role in the intensity modulation. |
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630 |
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Author |
Walther, Christoph; Scalari, Giacomo; Faist, Jerome; Beere, Harvey; Ritchie, David |
Title |
Low frequency terahertz quantum cascade laser operating from 1.6 to 1.8 THz |
Type |
Journal Article |
Year |
2006 |
Publication |
Applied Physics Letters |
Abbreviated Journal |
Appl. Phys. Lett. |
Volume |
89 |
Issue |
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Pages |
231121(1-3) |
Keywords |
QCL, 360 uW at 1.6 THz |
Abstract |
The authors report a GaAs/Al0.1Ga0.9As quantum cascade laser based on a bound-to-continuum transition optimized for low frequency operation. High tunability of the gain curve is achieved by the Stark effect and laser emission is measured between 1.6 and 1.8 THz. Pulsed mode operation up to 95 K and continuous wave operation up to 80 K are reported. The dynamical range in current is as high as 43%. |
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629 |
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