Sonoluminescence and quantum optical heating
نویسندگان
چکیده
منابع مشابه
Sonoluminescence and quantum optical heating
Sonoluminescence is the intriguing phenomenon of strong light flashes from tiny bubbles in a liquid. The bubbles are driven by an ultrasonic wave and need to be filled with noble gas atoms. Approximating the emitted light by blackbody radiation indicates very high temperatures. Although sonoluminescence has been studied extensively, the origin of the sudden energy concentration within the bubbl...
متن کاملQuantum Optical Heating in Sonoluminescence Experiments
Sonoluminescence occurs when tiny bubbles filled with noble gas atoms are driven by a sound wave. Each cycle of the driving field is accompanied by a collapse phase in which the bubble radius decreases rapidly until a short but very strong light flash is emitted. The spectrum of the light corresponds to very high temperatures and hints at the presence of a hot plasma core. While everyone accept...
متن کاملSonoluminescence as quantum vacuum radiation.
Sonoluminescence is explained in terms of quantum radiation by moving interfaces between media of different polarizability. It can be considered as a dynamic Casimir effect, in the sense that it is a consequence of the imbalance of the zero-point fluctuations of the electromagnetic field during the non-inertial motion of a boundary. The transition amplitude from the vacuum into a two-photon sta...
متن کاملSonoluminescence optical confocal tomography of tissue
In this paper, we report experiments on optical confocal tomography by use of sonoluminescence signal in both biological tissue and tissue-simulating media. A highsensitive confocal scanning setup based on photon counting technique was developed. With the system, we obtained images of the objects embedded in tissue-simulating turbid media. The images showed a high contrast and a lateral resolut...
متن کاملTheory of quantum radiation observed as sonoluminescence.
Sonoluminescence is explained in terms of quantum radiation by moving interfaces between media of different polarizability. In a stationary dielectric the zero-point fluctuations of the electromagnetic field excite virtual two-photon states, which become real under perturbation due to motion of the dielectric. The sonoluminescent bubble is modeled as an optically empty cavity in a homogeneous d...
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: New Journal of Physics
سال: 2009
ISSN: 1367-2630
DOI: 10.1088/1367-2630/11/5/053001