
Polarization of x-gamma radiation produced by a Thomson and
... also usually exploited in Compton polarimeters, which are based on the asymmetry of the Compton cross section with respect to the spin of the electrons. In this paper, a systematic study of the polarization of X-gamma rays produced in the linear regime of the Thomson and Compton scattering is presen ...
... also usually exploited in Compton polarimeters, which are based on the asymmetry of the Compton cross section with respect to the spin of the electrons. In this paper, a systematic study of the polarization of X-gamma rays produced in the linear regime of the Thomson and Compton scattering is presen ...
Optical fiber communication
... experience a phase change, this results in pulse spreading At high intensities it interacts with CD to change the rate at which the pulse broadens Opposite to +ve CD (inc. freq. w.r.t time) The leading edge causes the R.I of the fiber to rise, resulting in a blue shift. The falling edge causes the R ...
... experience a phase change, this results in pulse spreading At high intensities it interacts with CD to change the rate at which the pulse broadens Opposite to +ve CD (inc. freq. w.r.t time) The leading edge causes the R.I of the fiber to rise, resulting in a blue shift. The falling edge causes the R ...
Conjugated gammadion chiral metamaterial with uniaxial optical
... at f = 5.6 GHz. In addition, the resonance at f = 7.8 GHz can be considered as the superposition of ER and ER ; then the retrieval results only show the electric response. Some may raise the question of whether our design is just a thin metasurface that exhibits rotation of polarization phase or ca ...
... at f = 5.6 GHz. In addition, the resonance at f = 7.8 GHz can be considered as the superposition of ER and ER ; then the retrieval results only show the electric response. Some may raise the question of whether our design is just a thin metasurface that exhibits rotation of polarization phase or ca ...
Miniaturized modules for light sheet microscopy with low chromatic
... between wavelengths of 480 and 640 nm, if a singlet planoconvex cylindrical lens made of N-BK 7 with an Abbe number ν e = 64 and a focal length f’ = 50 mm is used. Such a focal shift is crucial in light sheet microscopy since there is a major impact on illumination and thus on image quality. Therefo ...
... between wavelengths of 480 and 640 nm, if a singlet planoconvex cylindrical lens made of N-BK 7 with an Abbe number ν e = 64 and a focal length f’ = 50 mm is used. Such a focal shift is crucial in light sheet microscopy since there is a major impact on illumination and thus on image quality. Therefo ...
Electromagnetic Boundary Conditions
... With parameterization of material properties as in the static case (but with different and frequency dependent) values of the dielectric and magnetic susceptability, these equations also specify changes in the E and B field magnitudes for a traveling wave incident on an interface between media with ...
... With parameterization of material properties as in the static case (but with different and frequency dependent) values of the dielectric and magnetic susceptability, these equations also specify changes in the E and B field magnitudes for a traveling wave incident on an interface between media with ...
Document
... disturbance in hypothetical medium called ether. The disturbance from the source is propagated in the form of waves through space and the energy is distributed equally in all directions Even though this theory could satisfactorily explain several optical phenomena, the presence of ether could not be ...
... disturbance in hypothetical medium called ether. The disturbance from the source is propagated in the form of waves through space and the energy is distributed equally in all directions Even though this theory could satisfactorily explain several optical phenomena, the presence of ether could not be ...
Highly efficient all-fiber tunable polarization filter
... which is one of the three acoustic modes propagating in a cylindrical optical fiber without cutoff when the acoustic wavelength is much longer than the dimension of the fiber core [4, 5]. Several researchers have investigated the potential of the polarization mode coupling by torsional acoustic wave ...
... which is one of the three acoustic modes propagating in a cylindrical optical fiber without cutoff when the acoustic wavelength is much longer than the dimension of the fiber core [4, 5]. Several researchers have investigated the potential of the polarization mode coupling by torsional acoustic wave ...
Pixel level optical-transfer-function design based on the surface
... both phase and amplitude) into the Fourier plane of a 4f system [1], or by using a spatial light modulator (SLM) to modify the phase and amplitude in real time [2]. While these implementation methods allow for good control of OTF, they do come with the associated cost of sophisticated bulk optical a ...
... both phase and amplitude) into the Fourier plane of a 4f system [1], or by using a spatial light modulator (SLM) to modify the phase and amplitude in real time [2]. While these implementation methods allow for good control of OTF, they do come with the associated cost of sophisticated bulk optical a ...
Ultra-thin plasmonic optical vortex plate based on phase
... h is the Planck constant.7 Optical beams with such helical phase profile are conventionally generated using spiral phase plates,8 spatial light modulators,9 or holograms.10 This type of beam can also be directly generated by lasers as an intrinsic transverse mode11 or when an incident beam diffract ...
... h is the Planck constant.7 Optical beams with such helical phase profile are conventionally generated using spiral phase plates,8 spatial light modulators,9 or holograms.10 This type of beam can also be directly generated by lasers as an intrinsic transverse mode11 or when an incident beam diffract ...
Photoinduced handedness switching in terahertz chiral metamolecules ARTICLE
... As shown by the equivalent inductor-capacitor (LC) circuit of the metamolecule in Fig. 4a, the metal loops function as inductors and the gap between the metal strips as capacitors of capacitance C. A single meta-atom exhibits a strong chirality at the LC resonance frequency, and consequently a posit ...
... As shown by the equivalent inductor-capacitor (LC) circuit of the metamolecule in Fig. 4a, the metal loops function as inductors and the gap between the metal strips as capacitors of capacitance C. A single meta-atom exhibits a strong chirality at the LC resonance frequency, and consequently a posit ...
Slowing a beam of light to a halt may pave the way for new optical
... how the atom interacts with light— which frequencies it will absorb strongly and so on. In addition, both the valence electron and the atom’s nucleus are magnets, in effect acting like tiny compass needles. The electron’s magnetism is associated with its intrinsic angular momentum, or spin, a little ...
... how the atom interacts with light— which frequencies it will absorb strongly and so on. In addition, both the valence electron and the atom’s nucleus are magnets, in effect acting like tiny compass needles. The electron’s magnetism is associated with its intrinsic angular momentum, or spin, a little ...
Nondiffracting Light Beams for Long Ranges
... will introduce at first generation of a LRNB of 10 cm diameter. The focal length f of the telescope’s objective is 40 cm, thus F (=f/D) is 4 and that of eyepiece is set to be 5 cm. Figure 4 shows a wave front which was formed by the Galilean telescope with eyepiece’s spherical aberration of 580μm. T ...
... will introduce at first generation of a LRNB of 10 cm diameter. The focal length f of the telescope’s objective is 40 cm, thus F (=f/D) is 4 and that of eyepiece is set to be 5 cm. Figure 4 shows a wave front which was formed by the Galilean telescope with eyepiece’s spherical aberration of 580μm. T ...
Michelson Interferometer
... observed. Note down the micrometer screw reading and count the number of fringes that disappear (or appear) at the centre of the fringe system. Take 6 sets of readings each for the appearance/disappearance of 50 fringes and plot a graph of micrometer reading versus fringe number. Alternatively, you ...
... observed. Note down the micrometer screw reading and count the number of fringes that disappear (or appear) at the centre of the fringe system. Take 6 sets of readings each for the appearance/disappearance of 50 fringes and plot a graph of micrometer reading versus fringe number. Alternatively, you ...
Refraction
... refraction Light ray travelling from a more dense medium (glass) to a less dense medium (air) bends away from the normal - Snell’s Law again applies i.e. sin i α sin r Refraction is the bending of a wave at the boundary when it is going from one medium to another ...
... refraction Light ray travelling from a more dense medium (glass) to a less dense medium (air) bends away from the normal - Snell’s Law again applies i.e. sin i α sin r Refraction is the bending of a wave at the boundary when it is going from one medium to another ...
doc - IYPT Archive
... There are two main reasons for the loss of the light: hydrodynamic and optical. Hydrodynamic reason is the decomposition of the jet. Because of the gravity the velocity of water increased and since the flow rate has to be constant, the radius of the jet decreased. On the surface of the jet there are ...
... There are two main reasons for the loss of the light: hydrodynamic and optical. Hydrodynamic reason is the decomposition of the jet. Because of the gravity the velocity of water increased and since the flow rate has to be constant, the radius of the jet decreased. On the surface of the jet there are ...
Ce e cu galben reprezinta corecturi de limba/topica/inteles/gramatica
... where 1310nm and 1550nm. The value of attenuation is minimum, 0.33 dB/km for the 1310nm wavelength and 0.19dB/km for the 1550nm wavelength. The optical fiber used was single mode with the refractive index of the core 1.4677 for 1310nm, 1.4682 for 1550nm and 1.4615 for the cladding. The boundary cond ...
... where 1310nm and 1550nm. The value of attenuation is minimum, 0.33 dB/km for the 1310nm wavelength and 0.19dB/km for the 1550nm wavelength. The optical fiber used was single mode with the refractive index of the core 1.4677 for 1310nm, 1.4682 for 1550nm and 1.4615 for the cladding. The boundary cond ...
Optical Interferometers
... by observing changes in a overlapping interference fringes from these two lines. A Fabry-Perot interferometer consists of two parallel glass plates, flat to better than 1/4 of an optical wavelength λ, and coated on the inner surfaces with a partially transmitting metallic layer. Such two-mirror arra ...
... by observing changes in a overlapping interference fringes from these two lines. A Fabry-Perot interferometer consists of two parallel glass plates, flat to better than 1/4 of an optical wavelength λ, and coated on the inner surfaces with a partially transmitting metallic layer. Such two-mirror arra ...
Introduction - NC State University
... Light Scattering Spectroscopy 3-D Polyatomic Crystals : • Any 3-D crystal can be described by a unit cell and a basis • The basis are the atoms and their orientation with respect to each lattice point • There are 14 possible 3-D unit cells (Bravais lattices) ...
... Light Scattering Spectroscopy 3-D Polyatomic Crystals : • Any 3-D crystal can be described by a unit cell and a basis • The basis are the atoms and their orientation with respect to each lattice point • There are 14 possible 3-D unit cells (Bravais lattices) ...
Polarimetric evidence of a white dwarf pulsar in
... energy distribution. These observations were explained in terms of beamed synchrotron radiation from the white dwarf, some of which is reprocessed by the companion star (2). The weak X-ray emission suggests that little accretion power is produced in AR Sco, which either implies that it is currently ...
... energy distribution. These observations were explained in terms of beamed synchrotron radiation from the white dwarf, some of which is reprocessed by the companion star (2). The weak X-ray emission suggests that little accretion power is produced in AR Sco, which either implies that it is currently ...
Controlling light-with-light without nonlinearity
... is replaced by the traveling wave regime: In this example, the metamaterial is initially located at a node of the standing wave where absorption is minimal (combined output intensity595% of input); interruption of the control beam ‘switches on’ signal beam absorption and output drops to 20%. This pr ...
... is replaced by the traveling wave regime: In this example, the metamaterial is initially located at a node of the standing wave where absorption is minimal (combined output intensity595% of input); interruption of the control beam ‘switches on’ signal beam absorption and output drops to 20%. This pr ...
Design of illumination and projection optics for projectors with single
... To eliminate the light path interference and to maximize the contrast ratio, we incorporated a new light separator into the projection system. The light separator is an integral feature of the compound prism system to steer the light onto and away from the DMD. As shown in Fig. 3, the prism system c ...
... To eliminate the light path interference and to maximize the contrast ratio, we incorporated a new light separator into the projection system. The light separator is an integral feature of the compound prism system to steer the light onto and away from the DMD. As shown in Fig. 3, the prism system c ...
High frequency characterization of the Gsanger LM0202P eletro-optic [i.e. electro-optic] modulator
... frequency of the E-field and the responses of the inter-atomic or inter-molecular ...
... frequency of the E-field and the responses of the inter-atomic or inter-molecular ...
The Demonstration
... The complete story of simple harmonic motion. The acceleration responds to the net force (add them all up). Demonstration: He has a neon orange mass on the end of a spring. In equilibrium it is at rest because the downward force of gravity is equal to the upward force of the spring. The net force i ...
... The complete story of simple harmonic motion. The acceleration responds to the net force (add them all up). Demonstration: He has a neon orange mass on the end of a spring. In equilibrium it is at rest because the downward force of gravity is equal to the upward force of the spring. The net force i ...
McConnell XGPolarimetry SSE
... Optical polarimetry of the Crab pulsar [e.g., 4] has shown high linear polarization (up to 35%), varying rapidly through each pulse component. Such behavior might be explained by a version of the slot gap model [5], but it remains unclear from the observation in only one (optical) band how unique th ...
... Optical polarimetry of the Crab pulsar [e.g., 4] has shown high linear polarization (up to 35%), varying rapidly through each pulse component. Such behavior might be explained by a version of the slot gap model [5], but it remains unclear from the observation in only one (optical) band how unique th ...
Coatings, Filters, and Surface Finishes
... large that k is directed essentially normal to the interface, regardless of incidence angle. In order for the light transmitted through the film not to significantly reduce the reflected power, we choose a film thickness d > λ/Im{n}, so that the light making a round trip through the film is attenuat ...
... large that k is directed essentially normal to the interface, regardless of incidence angle. In order for the light transmitted through the film not to significantly reduce the reflected power, we choose a film thickness d > λ/Im{n}, so that the light making a round trip through the film is attenuat ...
Polarizer

A polarizer or polariser is an optical filter that passes light of a specific polarization and blocks waves of other polarizations. It can convert a beam of light of undefined or mixed polarization into a beam with well-defined polarization, polarized light. The common types of polarizers are linear polarizers and circular polarizers. Polarizers are used in many optical techniques and instruments, and polarizing filters find applications in photography and liquid crystal display technology. Polarizers can also be made for other types of electromagnetic waves besides light, such as radio waves, microwaves, and X-rays.