One-way invisible cloak using parity-time symmetric transformation optics Xuefeng Zhu, Liang Feng,
... distributions of permittivity and permeability from a virtual space to a physical space, myriad exotic effects such as invisibility cloaking become possible [3,8,11]. The previous studies were mainly focused on the perfect cloaks to make the concealed object omnidirectionally invisible to the outsid ...
... distributions of permittivity and permeability from a virtual space to a physical space, myriad exotic effects such as invisibility cloaking become possible [3,8,11]. The previous studies were mainly focused on the perfect cloaks to make the concealed object omnidirectionally invisible to the outsid ...
NO2422242227
... region surrounded by multiple air holes ,that run along the fiber length are attaching much attention in recent years because of their unique properties which are not realized in convectional optical fibers. PCFs are divided into two different kinds of fibers. The first one, index guiding PCF, guide ...
... region surrounded by multiple air holes ,that run along the fiber length are attaching much attention in recent years because of their unique properties which are not realized in convectional optical fibers. PCFs are divided into two different kinds of fibers. The first one, index guiding PCF, guide ...
Part 1 - ISpatula
... a container of the drug solution in the light path, between the two filters (polarizers) in the figure , then in order to look “light,” or “dark”, the second filter will have to be rotated differently to make up for how much the drug molecule rotates the light. Drugs can be identified by which direc ...
... a container of the drug solution in the light path, between the two filters (polarizers) in the figure , then in order to look “light,” or “dark”, the second filter will have to be rotated differently to make up for how much the drug molecule rotates the light. Drugs can be identified by which direc ...
Optical Computers (Erin Raphael, 2006)
... Electro-Optical Hybrid Use optical fibers and electric parts to read and direct data from the processor Light pulses send information instead of voltage ...
... Electro-Optical Hybrid Use optical fibers and electric parts to read and direct data from the processor Light pulses send information instead of voltage ...
G060203-00-D
... - some progress toward a multiple frequency driver circuit, but more simulations and testing are needed before we feel confident that it will work. ...
... - some progress toward a multiple frequency driver circuit, but more simulations and testing are needed before we feel confident that it will work. ...
Document
... Matching circuits: for higher frequencies, better to put the matching circuit in the crystal housing » Driving the cable at high frequencies is difficult ...
... Matching circuits: for higher frequencies, better to put the matching circuit in the crystal housing » Driving the cable at high frequencies is difficult ...
Short-pulse limits in optical instrumentation design for the S
... matter can be readily derived [1]. For initially Gaussian pulses both a gradual dilation of the pulse length and the evolution of a correlated phase are predicted. [1,26,27]. In conjunction with chirping of the LCLS electron beam, this can be used to control the length of the LCLS photon pulses in p ...
... matter can be readily derived [1]. For initially Gaussian pulses both a gradual dilation of the pulse length and the evolution of a correlated phase are predicted. [1,26,27]. In conjunction with chirping of the LCLS electron beam, this can be used to control the length of the LCLS photon pulses in p ...
I. Crystal nucleation and growth
... II. Textures and relations related to crystallization order As we discussed previously, crystals form in a specific sequence that depends on the magma initial composition. Crystal growing in the melt develop their own crystalline shapes (euhedral), whereas crystals developing at a latter stage are l ...
... II. Textures and relations related to crystallization order As we discussed previously, crystals form in a specific sequence that depends on the magma initial composition. Crystal growing in the melt develop their own crystalline shapes (euhedral), whereas crystals developing at a latter stage are l ...
Tutor 6
... normally incident plane wave of illumination. Although we assumed the resist was on a single substrate, in fact any number of layers below the resist do not affect the form of the result. Equation (10) still applies if an effective reflection coefficient is used in place of ρ23. This effective refle ...
... normally incident plane wave of illumination. Although we assumed the resist was on a single substrate, in fact any number of layers below the resist do not affect the form of the result. Equation (10) still applies if an effective reflection coefficient is used in place of ρ23. This effective refle ...
Aalborg Universitet Transfer function and near-field detection of evanescent waves
... and terminated with a probe tip possessing axial symmetry. Note that, for weakly guiding fibers (having a very small index difference between the fiber core and its cladding), the guided modes represent approximately transverse-electromagnetic (TEM) waves. Thus, in the considered case, any propagati ...
... and terminated with a probe tip possessing axial symmetry. Note that, for weakly guiding fibers (having a very small index difference between the fiber core and its cladding), the guided modes represent approximately transverse-electromagnetic (TEM) waves. Thus, in the considered case, any propagati ...
Optical negative refraction by four-wave mixing in thin metallic nanostructures LETTERS *
... Snell’s law can be generalized to nonlinear processes by taking into account not only the different direction of the refracted electromagnetic (EM) wavevector but also the frequency at which it is emitted17 . Frequency mixing of EM fields in a nonlinear medium requires phase matching to obtain effic ...
... Snell’s law can be generalized to nonlinear processes by taking into account not only the different direction of the refracted electromagnetic (EM) wavevector but also the frequency at which it is emitted17 . Frequency mixing of EM fields in a nonlinear medium requires phase matching to obtain effic ...
Light Scattering
... forward direction (Fig. 4). The amount of diffracted light equals the amount striking the particle, independent of the particle shape and refractive index. Therefore the scattering efficiency2 , Qscat , of large non-absorbing particles is 2. For non-absorbing particles the diffraction constitutes ha ...
... forward direction (Fig. 4). The amount of diffracted light equals the amount striking the particle, independent of the particle shape and refractive index. Therefore the scattering efficiency2 , Qscat , of large non-absorbing particles is 2. For non-absorbing particles the diffraction constitutes ha ...
Determination of guided-mode resonances in photonic crystal slabs
... waves propagating in free space with waves guided in a waveguide. Such an interaction is made possible by periodic structure in the waveguide, turning it into a leaky waveguide and allowing coupling of leaky-guided and radiated modes. This results, in terms of the transmission spectrum, in Fano-shap ...
... waves propagating in free space with waves guided in a waveguide. Such an interaction is made possible by periodic structure in the waveguide, turning it into a leaky waveguide and allowing coupling of leaky-guided and radiated modes. This results, in terms of the transmission spectrum, in Fano-shap ...
(III) Laser Detection of Wave Motion in Solids
... path will continue to propagate and progressively amplify as the light travels back and forth along the path. Emitted light rays that travel in other directions simply leak away and have low amplitude. In essence a light “resonator” is set up, and with each pass the internally reflected light stimul ...
... path will continue to propagate and progressively amplify as the light travels back and forth along the path. Emitted light rays that travel in other directions simply leak away and have low amplitude. In essence a light “resonator” is set up, and with each pass the internally reflected light stimul ...
Principles of optics
... 15.2.1 The phase velocity and the ray velocity 15.2.2 Fresnel's formulae for the propagation of light in crystals 15.2.3 Geometrical constructions for determining the velocities of propagation and the directions of vibration (a) The ellipsoid of wave normals (b) The ray ellipsoid (c) The normal surf ...
... 15.2.1 The phase velocity and the ray velocity 15.2.2 Fresnel's formulae for the propagation of light in crystals 15.2.3 Geometrical constructions for determining the velocities of propagation and the directions of vibration (a) The ellipsoid of wave normals (b) The ray ellipsoid (c) The normal surf ...
Achromatic Polarization-Preserving Beam Displacer
... In many applications it is necessary to displace an optical beam. The widespread use of lasers for research and technology demands the steering of collimated beams from one spatial region in which the optical beams are prepared to another in which they are applied. In many of these situations the pr ...
... In many applications it is necessary to displace an optical beam. The widespread use of lasers for research and technology demands the steering of collimated beams from one spatial region in which the optical beams are prepared to another in which they are applied. In many of these situations the pr ...
IOSR Journal of Applied Physics (IOSR-JAP)
... 3.5 Dielectric Constant of the deposited CuO thin film The dielectric function is a complex quantity and a fundamental intrinsic property of the material which consists of both the real and imaginary parts. The real part indicates how the speed of light in the material can be slowed down while imagi ...
... 3.5 Dielectric Constant of the deposited CuO thin film The dielectric function is a complex quantity and a fundamental intrinsic property of the material which consists of both the real and imaginary parts. The real part indicates how the speed of light in the material can be slowed down while imagi ...
Birefringence
Birefringence is the optical property of a material having a refractive index that depends on the polarization and propagation direction of light. These optically anisotropic materials are said to be birefringent (or birefractive). The birefringence is often quantified as the maximum difference between refractive indices exhibited by the material. Crystals with asymmetric crystal structures are often birefringent, as are plastics under mechanical stress.Birefringence is responsible for the phenomenon of double refraction whereby a ray of light, when incident upon a birefringent material, is split by polarization into two rays taking slightly different paths. This effect was first described by the Danish scientist Rasmus Bartholin in 1669, who observed it in calcite, a crystal having one of the strongest birefringences. However it was not until the 19th century that Augustin-Jean Fresnel described the phenomenon in terms of polarization, understanding light as a wave with field components in transverse polarizations (perpendicular to the direction of the wave vector).