plasma wave reflection in slowly varying media
... can solve the Vlasov-Poisson equations as if the medium is uniform on eaoh side of the discontinuity (i.e., we neglect the other discontinuities). ...
... can solve the Vlasov-Poisson equations as if the medium is uniform on eaoh side of the discontinuity (i.e., we neglect the other discontinuities). ...
L1 WHAT IS LIGHT ? OBJECTIVES
... 1-5 IRRADIANCE OF LIGHT FROM A NUMBER OF SOURCES We now consider how to model the resultant irradiance when light from different sources arrives at the same place. The result depends on the relationship, or lack of relationship, between the phases of the elementary waves in each complex wave. In pri ...
... 1-5 IRRADIANCE OF LIGHT FROM A NUMBER OF SOURCES We now consider how to model the resultant irradiance when light from different sources arrives at the same place. The result depends on the relationship, or lack of relationship, between the phases of the elementary waves in each complex wave. In pri ...
Chapter5_Final.doc
... static magnetic field can therefore exist inside a metallic body, even though an E field cannot. The normal component of B and the tangential components of H are therefore continuous across the interface. For time-varying fields, the boundary conditions for good (perfect) conductors are: ...
... static magnetic field can therefore exist inside a metallic body, even though an E field cannot. The normal component of B and the tangential components of H are therefore continuous across the interface. For time-varying fields, the boundary conditions for good (perfect) conductors are: ...
Guess Paper – 2009 Class – XII Subject –Physics (outside Delhi
... What happens to the focal length of convex lens when it is immersed in water? 5. Define the term dipole moment of an electric dipole indicating its direction. Write its SI unit. An electric dipole is placed in a uniform electric field, Deduce the expression for the torque acting on it. In a particul ...
... What happens to the focal length of convex lens when it is immersed in water? 5. Define the term dipole moment of an electric dipole indicating its direction. Write its SI unit. An electric dipole is placed in a uniform electric field, Deduce the expression for the torque acting on it. In a particul ...
Static Magnetic Field Influence on Ponderomotive
... on the electrons of plasma and subsequent redistribution it along the wave front. In the ponderomotive nonlinearity, due to nonuniform intensity profile of laser beam, the electrons will travel from the region of low electric field toward the region of high electric field. Thus the electron density ...
... on the electrons of plasma and subsequent redistribution it along the wave front. In the ponderomotive nonlinearity, due to nonuniform intensity profile of laser beam, the electrons will travel from the region of low electric field toward the region of high electric field. Thus the electron density ...
chapter7
... Piezoelectric effect is the generation of electric charge in crystalline materials upon application of mechanical stress. The opposite effect is equally useful: application of charge across the crystal causes mechanical deformation in the material. The piezoelectric effect occurs naturally in materi ...
... Piezoelectric effect is the generation of electric charge in crystalline materials upon application of mechanical stress. The opposite effect is equally useful: application of charge across the crystal causes mechanical deformation in the material. The piezoelectric effect occurs naturally in materi ...
TSBB09 Image Sensors The history of image formation Ancient
... 1981: Sony markets the Mavica, the 1st consumer digital camera. Stores images on a floppy disc 1986: Kodak presents the first megapixel CCD camera 2005: Film based photography company AgfaPhoto files for insolvency 2006 D ...
... 1981: Sony markets the Mavica, the 1st consumer digital camera. Stores images on a floppy disc 1986: Kodak presents the first megapixel CCD camera 2005: Film based photography company AgfaPhoto files for insolvency 2006 D ...
Experimental methods of molecular matter
... Molecular quantum optics offers many challenges and innovative prospects: already the combination of two atoms into one molecule takes several well-established methods from atomic physics, such as for instance laser cooling, to their limits. The enormous internal complexity that arises when hundreds ...
... Molecular quantum optics offers many challenges and innovative prospects: already the combination of two atoms into one molecule takes several well-established methods from atomic physics, such as for instance laser cooling, to their limits. The enormous internal complexity that arises when hundreds ...
Analytical Chemistry CHEM 21122
... keeping the same molar concentration for both species), the isosbestic point corresponds to a wavelength at which these spectra cross each other. Isosbestic point is very important in removing errors due to ...
... keeping the same molar concentration for both species), the isosbestic point corresponds to a wavelength at which these spectra cross each other. Isosbestic point is very important in removing errors due to ...
Green`s function for metamaterial superlens: Evanescent
... sum of multi-frequency components. And each frequency component can be solved by sum of multiwavevector components. So we can use Green’s function of multi-frequency components to obtain the strict numerical results. Therefore, our method based on the Green’s function is strict, and it is quite a un ...
... sum of multi-frequency components. And each frequency component can be solved by sum of multiwavevector components. So we can use Green’s function of multi-frequency components to obtain the strict numerical results. Therefore, our method based on the Green’s function is strict, and it is quite a un ...
electromagnetic waves in periodic structures
... When the inequality (Eq. 11) becomes an equality, the forbidden-region boundaries are defined. These plot in the (kL/2rr, hoL/2w) plane as in Fig. 2. If the mode is resolved into a set of space harmonics (see Eq. 1), it is seen that free-mode propagation can occur only if each space harmonic has a p ...
... When the inequality (Eq. 11) becomes an equality, the forbidden-region boundaries are defined. These plot in the (kL/2rr, hoL/2w) plane as in Fig. 2. If the mode is resolved into a set of space harmonics (see Eq. 1), it is seen that free-mode propagation can occur only if each space harmonic has a p ...
Large-angle quasi-self-collimation effect in a rod
... 1. Introduction During the past two decades, photonic crystals (PCs) have attracted much attention due to their potential application in the miniaturization and integration of optical devices[1]. They exhibit a variety of new physical phenomena, including a photonic bandgap (PBG)[2], the ability to ...
... 1. Introduction During the past two decades, photonic crystals (PCs) have attracted much attention due to their potential application in the miniaturization and integration of optical devices[1]. They exhibit a variety of new physical phenomena, including a photonic bandgap (PBG)[2], the ability to ...
Polarization-insensitive high-dispersion total internal reflection
... 3(a) shows that at these smaller grating periods, the characteristic of diffraction efficiency as a function of grating depth changes from a typical sinusoidal behavior to one that is asymptotic. This reduces the available choice for grating period. For long periods, the characteristic of efficiency ...
... 3(a) shows that at these smaller grating periods, the characteristic of diffraction efficiency as a function of grating depth changes from a typical sinusoidal behavior to one that is asymptotic. This reduces the available choice for grating period. For long periods, the characteristic of efficiency ...
Diffraction
Diffraction refers to various phenomena which occur when a wave encounters an obstacle or a slit. In classical physics, the diffraction phenomenon is described as the interference of waves according to the Huygens–Fresnel principle. These characteristic behaviors are exhibited when a wave encounters an obstacle or a slit that is comparable in size to its wavelength. Similar effects occur when a light wave travels through a medium with a varying refractive index, or when a sound wave travels through a medium with varying acoustic impedance. Diffraction occurs with all waves, including sound waves, water waves, and electromagnetic waves such as visible light, X-rays and radio waves.Since physical objects have wave-like properties (at the atomic level), diffraction also occurs with matter and can be studied according to the principles of quantum mechanics. Italian scientist Francesco Maria Grimaldi coined the word ""diffraction"" and was the first to record accurate observations of the phenomenon in 1660.While diffraction occurs whenever propagating waves encounter such changes, its effects are generally most pronounced for waves whose wavelength is roughly comparable to the dimensions of the diffracting object or slit. If the obstructing object provides multiple, closely spaced openings, a complex pattern of varying intensity can result. This is due to the addition, or interference, of different parts of a wave that travels to the observer by different paths, where different path lengths result in different phases (see diffraction grating and wave superposition). The formalism of diffraction can also describe the way in which waves of finite extent propagate in free space. For example, the expanding profile of a laser beam, the beam shape of a radar antenna and the field of view of an ultrasonic transducer can all be analyzed using diffraction equations.