Velocity of light

We reinstate the velocity of light c in this and in Section VI.F in order to appreciate the order of magnitude of the various terras. When contributions from C) are neglected, the expression in Eq, (162) equated to zero gives the following equations, in which the large (i = 1,2) and small (i = 3,4) components are separated. [Pg.165]

To understand the production of laser light, it is necessary to consider the interaction of light with matter. Quanta of light (photons) of wavelength X have energy E given by Equation 18.1, in which h is Planck s constant (6.63 x 10 J-sec) and c is the velocity of light (3 x 10 m-sec-h-... [Pg.123]

Fig. 2. Representation of longitudinal modes ia a laser. Where line A = cj2D, c is the velocity of light, and D is the distance between the laser mirrors.

Fig. 4. Temporal pulse characteristics of lasers (a) millisecond laser pulse (b) relaxation oscillations (c) Q-switched pulse (d) mode-locked train of pulses, where Fis the distance between mirrors and i is the velocity of light for L = 37.5 cm, 2L j c = 2.5 ns (e) ultrafast (femtosecond or picosecond) pulse.

In the process of excitation, the dye molecule absorbs a quantum of uv or visible radiation. The quantum has an energy E = hv, where b is Planck s constant and O is the frequency of the radiation. The higher the frequency of the quantum, the shorter the wavelength X, with u-A = c, where c is the velocity of light in a vacuum. [Pg.299]

N = Aoogadro number h = Planck constant c = velocity of light... [Pg.42]

Thermal radiation takes place by the emission of electromagnetic waves, at the velocity of light, from all bodies at temperatures above absolute zero. The heat flux from an... [Pg.346]

In this scheme, digital particles are still wandering localized clusters of informa-tionl but (conventional) variables such as space, time, velocity and so on become statistical quantities. Given that no experimental measurement to date has yet detected any statistical dispersion in the velocity of light, the sites of a hypothetical discrete underlying lattice can be no further apart than about 10 cm. [Pg.665]

See also in sourсe #XX -- [ Pg.2 , Pg.342 , Pg.351 ]

See also in sourсe #XX -- [ Pg.130 ]

See also in sourсe #XX -- [ Pg.234 ]

See also in sourсe #XX -- [ Pg.100 ]

See also in sourсe #XX -- [ Pg.2 , Pg.306 ]

See also in sourсe #XX -- [ Pg.14 ]

See also in sourсe #XX -- [ Pg.504 , Pg.529 , Pg.548 ]

See also in sourсe #XX -- [ Pg.13 ]

See also in sourсe #XX -- [ Pg.8 ]

See also in sourсe #XX -- [ Pg.325 ]

See also in sourсe #XX -- [ Pg.4 ]

See also in sourсe #XX -- [ Pg.11 ]

See also in sourсe #XX -- [ Pg.11 ]

See also in sourсe #XX -- [ Pg.8 ]

See also in sourсe #XX -- [ Pg.419 ]

See also in sourсe #XX -- [ Pg.10 , Pg.183 , Pg.193 ]

See also in sourсe #XX -- [ Pg.330 ]

See also in sourсe #XX -- [ Pg.13 ]

See also in sourсe #XX -- [ Pg.137 , Pg.158 ]

See also in sourсe #XX -- [ Pg.213 ]

See also in sourсe #XX -- [ Pg.286 ]

See also in sourсe #XX -- [ Pg.360 ]

See also in sourсe #XX -- [ Pg.14 ]

See also in sourсe #XX -- [ Pg.10 ]

See also in sourсe #XX -- [ Pg.2 ]

Big Chemical Encyclopedia

Chemical substances, components, reactions, process design ...