Vertically emitting terahertz quantum cascade ring lasers
We describe the fabrication and operation of vertically emitting distributed feedback quantum cascade ring lasers operating in the terahertz frequency range. A twofold increase in radiation efficiency...
We describe the fabrication and operation of vertically emitting distributed feedback quantum cascade ring lasers operating in the terahertz frequency range. A twofold increase in radiation efficiency...
In-plane anisotropic photoluminescence of C-plane GaN under asymmetric biaxial strain
The effects of anisotropic strain on wurtzite GaN valence subbands are investigated both theoretically and experimentally. k•p perturbation theory reveals that the in-plane asymmetric strain not ...
The effects of anisotropic strain on wurtzite GaN valence subbands are investigated both theoretically and experimentally. k•p perturbation theory reveals that the in-plane asymmetric strain not ...
Simulated and experimental compression of a compact toroid
Appl. Phys. Lett. 95, 011501 (2009); doi:10.1063/1.3176967
Published 10 July 2009
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We present simulation results and experimental data for the compression of a compact toroid by a conducting nozzle without a center electrode. In both simulation and experiment, the plasma flow is obstructed by even modest magnetic fields. A simple mechanism for this obstruction is suggested by our simulations. The configuration of the plasmoid's magnetic field plays a significant role in its compression. We analyze two types of plasma configurations under compression and demonstrate that the results from the simulations match those from the experiments, and that the mechanism predicts the different behaviors observed in the two cases.
©2009 American Institute of Physics
| History: | Received 19 May 2009; accepted 23 June 2009; published 10 July 2009 |
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http://link.aip.org/link/?APPLAB/95/011501/1 |
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REFERENCES (12)
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