ht the Polysynthetic Structure of some Porphyritic Quartz Crystals in
... of interpretation alluded to were to be applied to the crystals now in question, we should have to regard these quartz-crystals as fragments of schists included in the felsite. The strings of micro.crystalline mica might seem to support this contention ; but an advocate of this theory would, I think ...
... of interpretation alluded to were to be applied to the crystals now in question, we should have to regard these quartz-crystals as fragments of schists included in the felsite. The strings of micro.crystalline mica might seem to support this contention ; but an advocate of this theory would, I think ...
Physics 136-3: General Physics Lab Laboratory Manual
... practice and analysis (136). Physics 136-2 is designed to provide an introduction to experimental techniques in the laboratory, focused on experiments in electricity and magnetism. We will build on the concepts covered in mechanics and use them to explain the indirect observations of electric charge ...
... practice and analysis (136). Physics 136-2 is designed to provide an introduction to experimental techniques in the laboratory, focused on experiments in electricity and magnetism. We will build on the concepts covered in mechanics and use them to explain the indirect observations of electric charge ...
Physic
... b) In diffraction all fringes are of equal width and in interference all fringes are of unequal width. c) In diffraction as well interference intensities of all fringes are equal. d) Diffraction and refraction both show that light is transverse in nature ...
... b) In diffraction all fringes are of equal width and in interference all fringes are of unequal width. c) In diffraction as well interference intensities of all fringes are equal. d) Diffraction and refraction both show that light is transverse in nature ...
Photonic Crystals - Materials Computation Center
... “ If only were possible to make materials in which electromagnetically waves cannot propagate at certain frequencies, all kinds of almost-magical things would happen” Sir John Maddox, Nature (1990) ...
... “ If only were possible to make materials in which electromagnetically waves cannot propagate at certain frequencies, all kinds of almost-magical things would happen” Sir John Maddox, Nature (1990) ...
Reflection optimisation of the SPR-graphene
... angular resonance peak [12], but it presents a drawback that it can be easily oxidized, thus affecting the performance of SPR-sensors [11,12]. To exploit the high enhancement characteristics of silver and deal with its oxidation problem, graphene [13,14] has been proposed as an addition of layers to ...
... angular resonance peak [12], but it presents a drawback that it can be easily oxidized, thus affecting the performance of SPR-sensors [11,12]. To exploit the high enhancement characteristics of silver and deal with its oxidation problem, graphene [13,14] has been proposed as an addition of layers to ...
PDF
... Silicon p-n junction modulators can, of course, be run in depletion mode, where carriers are extracted rather than injected [4]–[6] and high-speed operation (30 GHz) has been obtained. However, without a p-n junction tailored to run in depletion mode in a tightly confined structure, these structures ...
... Silicon p-n junction modulators can, of course, be run in depletion mode, where carriers are extracted rather than injected [4]–[6] and high-speed operation (30 GHz) has been obtained. However, without a p-n junction tailored to run in depletion mode in a tightly confined structure, these structures ...
Backward Monte Carlo Calculations of the
... We shall adopt the notation of Chandrasekhar"2 and characterize a beam of polarized light by the Stokes vector (I,I,,U,V), where 1 and r refer to two mutually orthogonal directions in the plane transverse to the oncoming light. It is convenient to define the propagation plane as the plane containing ...
... We shall adopt the notation of Chandrasekhar"2 and characterize a beam of polarized light by the Stokes vector (I,I,,U,V), where 1 and r refer to two mutually orthogonal directions in the plane transverse to the oncoming light. It is convenient to define the propagation plane as the plane containing ...
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... factors of 0.32, 0.49, and 0.92, respectively. These values are slightly different from that of 0.67 predicted by Eq. 共4兲 and closer to the value of 0.7104 given by the Milne problem for isotropic scattering. As expected, for this index-matched interface, the anisotropy does not have a significant e ...
... factors of 0.32, 0.49, and 0.92, respectively. These values are slightly different from that of 0.67 predicted by Eq. 共4兲 and closer to the value of 0.7104 given by the Milne problem for isotropic scattering. As expected, for this index-matched interface, the anisotropy does not have a significant e ...
Defect-based Photonic Crystal Cavity for Silicon Laser PHYC/ECE 568
... Nonlinear optics in Two Dimensional Slab Photonic Crystals Two dimensional photonic crystal slabs are periodic array of holes drilled into a dielectric slab. Creating a defect into such a periodic lattice, can form states that can act as a waveguide or a localized state. The common feature of such d ...
... Nonlinear optics in Two Dimensional Slab Photonic Crystals Two dimensional photonic crystal slabs are periodic array of holes drilled into a dielectric slab. Creating a defect into such a periodic lattice, can form states that can act as a waveguide or a localized state. The common feature of such d ...
Fiber optic devices and systems
... medical technology in the early 1950s when the then Indian PhD student, Narinder S. Kapany, was asked by his supervisor, Professor H.H. Hopkins, to fabricate a meter-length cladded glass fiber for image transmission. At that time, the fiber attenuation was about 1000dB/km but this did not impede its ...
... medical technology in the early 1950s when the then Indian PhD student, Narinder S. Kapany, was asked by his supervisor, Professor H.H. Hopkins, to fabricate a meter-length cladded glass fiber for image transmission. At that time, the fiber attenuation was about 1000dB/km but this did not impede its ...
Bandgap-assisted surface-plasmon sensing Arnaud J. Benahmed* and Chih-Ming Ho
... scale, we instead use in this paper the gap appearing at the 0⫹ and 1⫺ branch intersections, which is controlled by the the first order of the grating. However, in order to probe this gap by the SPR technique, a prism needs to be used to increase the excitation light transverse momentum. As illustra ...
... scale, we instead use in this paper the gap appearing at the 0⫹ and 1⫺ branch intersections, which is controlled by the the first order of the grating. However, in order to probe this gap by the SPR technique, a prism needs to be used to increase the excitation light transverse momentum. As illustra ...
Control of extraordinary light transmission through perforated T E
... be tuned, and even made to close, by suitably orienting the principal axis n̂ of the NLC, known as the director, with an electric field [17]. Similarly, the SP frequencies of both random distributions and chains of small metal particles are altered when these systems are immersed in the NLC [18–22]. ...
... be tuned, and even made to close, by suitably orienting the principal axis n̂ of the NLC, known as the director, with an electric field [17]. Similarly, the SP frequencies of both random distributions and chains of small metal particles are altered when these systems are immersed in the NLC [18–22]. ...
Abstract
... while in external modulation a continuous beam is blocked or forced to interfere deconstuctively. The silicon modulator is an external modulator based on the design of a Mach-Zender interferometer, where an incoming beam of light is split in half and the two resulting beams travel through two differ ...
... while in external modulation a continuous beam is blocked or forced to interfere deconstuctively. The silicon modulator is an external modulator based on the design of a Mach-Zender interferometer, where an incoming beam of light is split in half and the two resulting beams travel through two differ ...
Reference Guide to Fiber Optic Testing Glossary Reference Guide to Fib
... communication link. The BER of a system for optical fiber communications can be increased by noise influences, optical losses, dispersion, and nonlinearities. Birefringent Having a refractive index that is light polarization-dependent. Birefringence The decomposition of a light beam into two divergi ...
... communication link. The BER of a system for optical fiber communications can be increased by noise influences, optical losses, dispersion, and nonlinearities. Birefringent Having a refractive index that is light polarization-dependent. Birefringence The decomposition of a light beam into two divergi ...
Phononic Crystal Waveguiding in GaAs Golnaz Azodi Aval
... On the bottom is a close up of a single finger IDT and a line waveguide crystal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Different resist profiles and corresponding deposited metals. On the left: Enough undercut to provide a clean lift-off . On the right: Forming contin ...
... On the bottom is a close up of a single finger IDT and a line waveguide crystal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Different resist profiles and corresponding deposited metals. On the left: Enough undercut to provide a clean lift-off . On the right: Forming contin ...
Optical Fibre Communications
... study. They published their findings in the definitive paper in 1966* ...
... study. They published their findings in the definitive paper in 1966* ...
... high-frequency (1.1 GHz) fields ranging from 19 V/m to 23 kV/m. The second proposed device is fabricated by direct bonding a z-cut LiNbO3 substrate on top of a cut-off proton-exchanged waveguide centered on the domain-inverted region. It is possible to detect electric fields as high as 2 MV/m at low ...
Vacuum-ultraviolet to infrared supercontinuum in hydrogen
... 2.5 μJ. At this pressure the zero-dispersion point is at 446 nm [Fig. 1(e)]. The supercontinuum spans from 124 to beyond 1200 nm—measurements with a mid-IR spectrometer (with uncalibrated absolute response) showed a strong signal from 1000 to 1200 nm [inset of Fig. 1(f)]. To check that the supercont ...
... 2.5 μJ. At this pressure the zero-dispersion point is at 446 nm [Fig. 1(e)]. The supercontinuum spans from 124 to beyond 1200 nm—measurements with a mid-IR spectrometer (with uncalibrated absolute response) showed a strong signal from 1000 to 1200 nm [inset of Fig. 1(f)]. To check that the supercont ...
Extended Nijboer-Zernike representation of the vector field in the
... complex field components Ex , Ey and Ez in the focal region. Using these components, the Poynting vector can be calculated at an arbitrary point in the focal region. With the aid of the Poynting vector, the energy flow through the focal region is obtained. When we use the expression for the electric fi ...
... complex field components Ex , Ey and Ez in the focal region. Using these components, the Poynting vector can be calculated at an arbitrary point in the focal region. With the aid of the Poynting vector, the energy flow through the focal region is obtained. When we use the expression for the electric fi ...
Optical Behavior of Pellicles
... Nitrocellulose absorbs appreciably below about 350 nm, so amorphous fluoropolymers (such as Teflon AF and Cytop) are used for KrF and ArF pellicles. Since these materials have low refractive indices (near 1.34 at 248 nm and 1.40 at 193 nm), it is difficult to find antireflective coatings that work w ...
... Nitrocellulose absorbs appreciably below about 350 nm, so amorphous fluoropolymers (such as Teflon AF and Cytop) are used for KrF and ArF pellicles. Since these materials have low refractive indices (near 1.34 at 248 nm and 1.40 at 193 nm), it is difficult to find antireflective coatings that work w ...
No Slide Title
... floating below the surface of a pool or trying to net a fish while out in a lake. Would you reach at the point where you see the object, or above it, or below it? – Describe personal experiences that helped you answer this question. – Make a sketch showing how you think light behaves when leaving th ...
... floating below the surface of a pool or trying to net a fish while out in a lake. Would you reach at the point where you see the object, or above it, or below it? – Describe personal experiences that helped you answer this question. – Make a sketch showing how you think light behaves when leaving th ...
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).