Pressure radiation

Ashkin A 1970 Acceleration and trapping of particles by radiation pressure Phys.Rev.Lett. 24 156-9... 

Cook R J 1980 Theory of resonant-radiation pressure Phys.Rev. A 22 1078-98... 

Ashkin A and Gordon J P 1983 Stability of radiation-pressure particle traps an optical Earnshaw theorem Opt. Lett. 8 511-13... 

Raab E, Prentiss M, Cable A, Chu S and Pritchard D E 1987 Trapping of neutral sodium atoms with radiation pressure Phys.Rev.Lett. 59 2631-4... 

Strahlungs-dnick, m. radiation pressure, -flache, /. emitting surface, radiator surface. 

When a liquid is exposed to ultrasonic irradiation, a variety of phenomena can be observed originating from streaming and cavitation. High intensity sounds in liquids are accompanied by wave radiation pressure which results in steady-state... 

Collisions between the Na atoms and molecules will redistribute the atomic velocities and fill the velocity hole created by radiation pressure. These collisions, however, are relatively infrequent. Therefore, ample time exists for a long laser pulse to push the atoms out of resonance before collisions can rethermalize the vapor. This loss in excitation efficiency can be overcome with... 

Radiation pressure noise. When dealing with shot noise we only assumed that this noise only affected the number of collected photons, but shot noise has another subtle effect. The laser beam exerts a force on each mirror equal to ... 

The radiation pressure noise decreases rapidly with frequency, so we focus our attention on the worst case, the low frequency domain. Because of the seismic noise which is very large at low frequency, it will be very difficult to detect gw below a few hertz, so we put this as a limit. Equation (46) exhibits interesting features ... 

Flame dynamics is intimately related to combustion instability and noise radiation. In this chapter, relationships between these different processes are described by making use of systematic experiments in which laminar flames respond to incident perturbations. The response to incoming disturbances is examined and expressions of the radiated pressure are compared with the measurements of heat release rate in the flame. The data indicate that flame dynamics determines the radiation of sound from flames. Links between combustion noise and combustion instabilities are drawn on this basis. These two aspects, usually treated separately, appear as manifestations of the same dynamical process. 

Assuming that combustion takes place in an unconfined domain, the radiated pressure is given by... 

Using this photon force measurement technique, radiation pressure induced by a focused laser beam and an evanescent field [12, 14, 19, 20] was investigated for polymer latexes and metallic particles. Electrostatic forces of charged particles in... 

Sasaki, K., Tsukima, M. and Masuhara, H. (1997) Three-dimensional potential analysis of radiation pressure exerted on a single microparticle. Appl. Phys. Lett., 71, 37-39. 

Hofkens, J., Hotta, J., Sasaki, K., Masuhara, H. and Iwai, K. (1997) Molecular assembling by the radiation pressure of a focused laser beam Poly (N-isopropylacrylamide) in aqueous solution. Langmuir, 13, 414-419. 

The idea that microbes could migrate across the universe was supported by scientists with a worldwide reputation, such as H. von Helmholtz, W. Thomson (later Lord Kelvin) and Svante Arrhenius. This hypothesis was still accepted by Arrhenius in the year 1927, when he reported in the Zeitschrift fur Physikalische Chemie on his assumption that thermophilic bacteria could be transported within a few days from Venus (with a calculated surface temperature of 320 K) to the Earth by the radiation pressure of the sun (Arrhenius, 1927). The panspermia hypothesis, which seemed to have disappeared in the intervening decades, was reintroduced in the ideas of Francis Crick (Crick and Orgel, 1973). It still exists in a modified form (see Sect. 11.1.2.4). 

Type 2 these consist of dust particles around 1 rm in diameter. They are influenced strongly by the radiation pressure of the sun, which is, however, weaker than the pressure of the solar wind. 

Lithopanspermia the transport of the seeds of life by meteorites Radiopanspermia microbes are driven through space by radiation pressure The directed panspermia referred to above... 

There are several ways to induce reactions in solids. The application of heat, electromagnetic radiation, pressure, ultrasound or some other form of energy may induce a transformation in a solid. For centuries, it has been a common practice to subject solid materials to heat in order to determine their thermal stability, to study their physical properties, or to convert one material into another. One important commercial reaction, that producing lime,... 

For an estimate of radiation pressure, see the description of Eddington s Standard Model in Appendix 4. 

Fig. 5.23. Possible outcomes of accretion on to a CO white dwarf, according to its mass and accretion rate. Medd is the critical (Eddington) rate above which radiation pressure drives material out. After Nomoto and Kondo (1991). Courtesy Ken-ichi Nomoto.

Show that the Eddington limiting luminosity, at which the gradient of radiation pressure balances gravity near the surface, is given by... 

Another interesting application is Eddington s Standard Model (Eddington 1926). In this model it is assumed that gas pressure and radiation pressure contribute respective fractions fi and 1 — ft to the total pressure, with fi constant in any... 

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