Population-inversion and gain estimates for a semiconductor TASER
نویسندگان
چکیده
منابع مشابه
Population-inversion and gain estimates for a semiconductor TASER
We have investigated a solid–state design advanced (Soref et al. SPIE Proceedings, vol. 3795, 516 (1999)) to achieve Terahertz-Amplification-by-the-Stimulated-Emission-of-Radiation (TASER). The original design was based on lightto heavy-hole intersubband transitions in SiGe/Si heterostructures. This work adapts the design to electron intersubband transitions in the more readily available GaAs/G...
متن کاملLasing without inversion: Gain enhancement through spectrally colored population pumping.
We propose the use of spectrally colored rather than white (i.e., incoherent) population pumping in lasing-without-inversion schemes. We show that colored pumping can lead to a significant enhancement in gain by presenting explicit results for the gain in a three-level ladder system. These results are obtained from Monte Carlo simulations of the coupled density-matrix-equations, which, for a co...
متن کاملpassivity in waiting for godot and endgame: a psychoanalytic reading
this study intends to investigate samuel beckett’s waiting for godot and endgame under the lacanian psychoanalysis. it begins by explaining the most important concepts of lacanian psychoanalysis. the beckettian characters are studied regarding their state of unconscious, and not the state of consciousness as is common in most beckett studies. according to lacan, language plays the sole role in ...
Gain without inversion for gamma radiation 1
Gain without inversion for a level-mixing scheme is studied for gamma-optics. In this scheme nuclear level mixing is created by misalignment of a dc magnetic field with respect to the c-axis of a noncubic crystal. Axially symmetric electron nuclear coupling and nuclear quadrupole interaction with an electric field gradient produce two electro-nuclear levels that are equally mixed and split, wit...
متن کاملTaser and Taser associated injuries: a case series.
Taser devices were introduced in 1974 and are increasingly used by law enforcement agencies. Taser use theoretically reduces the risk of injury and death by decreasing the use of lethal force. We report a spectrum of injuries sustained by four patients subdued with Taser devices. Injuries identified in our review included: 1) a basilar skull fracture, right subarachnoid hemorrhage, and left-sid...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: IEEE Journal of Quantum Electronics
سال: 2001
ISSN: 0018-9197
DOI: 10.1109/3.892737