Multiply scattered waves through a spatially random medium
... beam is lost by state not characterize depolarization of optical multiple scattering. A point of further interest is to the propagating through random multiple scattering medium. propagating in such A a wave waves rapidly depolarized the characteristic medium but knows little about spatial becomes o ...
... beam is lost by state not characterize depolarization of optical multiple scattering. A point of further interest is to the propagating through random multiple scattering medium. propagating in such A a wave waves rapidly depolarized the characteristic medium but knows little about spatial becomes o ...
Modeling Light Scattering in Tissue as Continuous Random Media
... models of tissue scattering approximate tissue as a collection of randomly placed spheres or spheroids [11]–[13]. This is plausible considering that organelles such as nuclei, mitochondria, lysosomes, vacuoles, and even whole cells are approximately spherical (or spheroidal) in shape. The scattering ...
... models of tissue scattering approximate tissue as a collection of randomly placed spheres or spheroids [11]–[13]. This is plausible considering that organelles such as nuclei, mitochondria, lysosomes, vacuoles, and even whole cells are approximately spherical (or spheroidal) in shape. The scattering ...
Fabrication of Cube Beamsplitters for White Light Interferometry
... White light interferometry offers a distinct advantage over monochromatic interferometry by eliminating the 2π modulo ambiguity associated with interference periodicity of single laser source systems. This advantage is based on the principle that acceptable fringe visibility only occurs when both ar ...
... White light interferometry offers a distinct advantage over monochromatic interferometry by eliminating the 2π modulo ambiguity associated with interference periodicity of single laser source systems. This advantage is based on the principle that acceptable fringe visibility only occurs when both ar ...
Illusion Optics: The Optical Transformation of an Object into Another
... interesting possibilities. For instance, an illusion waveguide or photonic crystal would allow the control of light propagation in actual free space; an illusion tip might perform near-field scanning optical microscopy without physically approaching a surface. However, the theoretical foundation of ...
... interesting possibilities. For instance, an illusion waveguide or photonic crystal would allow the control of light propagation in actual free space; an illusion tip might perform near-field scanning optical microscopy without physically approaching a surface. However, the theoretical foundation of ...
Optical contrast and clarity of graphene on an
... For a thin film deposited on a substrate with reflectance R, the net signal 共e.g., from graphene兲 is P0⌬R, where P0 is the photon power received by 1 pixel in one image frame when the substrate has unity reflectance. P0 is the product of the light intensity on the charge-coupled device 共CCD兲 chip, t ...
... For a thin film deposited on a substrate with reflectance R, the net signal 共e.g., from graphene兲 is P0⌬R, where P0 is the photon power received by 1 pixel in one image frame when the substrate has unity reflectance. P0 is the product of the light intensity on the charge-coupled device 共CCD兲 chip, t ...
Techreportjul09 - University of Reading
... A survey of the groups in ADIENT was undertaken to ascertain how aerosol properties were used and therefore required within the individual activities. A literature review was then conducted by Reading into the appropriateness of the choices already used, and whether recent work presented alternative ...
... A survey of the groups in ADIENT was undertaken to ascertain how aerosol properties were used and therefore required within the individual activities. A literature review was then conducted by Reading into the appropriateness of the choices already used, and whether recent work presented alternative ...
FINCH: Fresnel Incoherent Correlation Hologram
... although it shows promising prospects, is relatively slow since it is based on capturing tens of scene images from different view angles. Another method is called scanning holography (Poon & Korpel, 1979; Schilling et al., 1997; Poon, 2004; Rosen et al., 2006; Poon, 2007) in which a pattern of Fresn ...
... although it shows promising prospects, is relatively slow since it is based on capturing tens of scene images from different view angles. Another method is called scanning holography (Poon & Korpel, 1979; Schilling et al., 1997; Poon, 2004; Rosen et al., 2006; Poon, 2007) in which a pattern of Fresn ...
Pulse Propagation in Optical Fibers
... dispersion strongly limits the bandwidth of the transmitted signal and may cause interference between symbols, we address several methods for reducing the effect of dispersion, which can be very efficient: the use of dispersion compensating fibers and the propagation of solitons. In non-linear syste ...
... dispersion strongly limits the bandwidth of the transmitted signal and may cause interference between symbols, we address several methods for reducing the effect of dispersion, which can be very efficient: the use of dispersion compensating fibers and the propagation of solitons. In non-linear syste ...
DESIGN, FABRICATION AND CHARACTERIZATION OF GUIDED
... applications where a high refractive index and low extinction coefficient is desired. We design transmission filters for both transverse electric (TE) and transverse magnetic (TM) polarizations and experimentally demonstrate a simple and geometrically tunable narrowband transmission filter for TM po ...
... applications where a high refractive index and low extinction coefficient is desired. We design transmission filters for both transverse electric (TE) and transverse magnetic (TM) polarizations and experimentally demonstrate a simple and geometrically tunable narrowband transmission filter for TM po ...
Lateral shearing interferometry for EUV optical testing
... (EUV) and Soft X-ray (SXR) regions for applications in high resolution microscopy and lithography, it is becoming increasingly important to have a reliable means for measuring these optics. In Lateral Shearing Interferometry (LSI), the test wavefront is interfered with a shifted (sheared) copy of it ...
... (EUV) and Soft X-ray (SXR) regions for applications in high resolution microscopy and lithography, it is becoming increasingly important to have a reliable means for measuring these optics. In Lateral Shearing Interferometry (LSI), the test wavefront is interfered with a shifted (sheared) copy of it ...
Waveguide Dispersion
... oscillates the ions which consequently generate "mechanical" waves in the crystal; energy is thereby transferred from the wave to lattice vibrations. © 1999 S.O. Kasap, Optoelectronics (Prentice Hall) ...
... oscillates the ions which consequently generate "mechanical" waves in the crystal; energy is thereby transferred from the wave to lattice vibrations. © 1999 S.O. Kasap, Optoelectronics (Prentice Hall) ...
Quantum Effects in Atomic Nanofabrication Using Light Forces
... magnetic moments (Gerlach and Stern, 1921). Soon afterwards Frisch showed that an atomic beam can be deflected by light pressure (Frisch, 1933). But it took almost another 50 years to realize the first focusing of an atomic beam in a near-resonant co-propagating laser beam using light forces (Bjorkhol ...
... magnetic moments (Gerlach and Stern, 1921). Soon afterwards Frisch showed that an atomic beam can be deflected by light pressure (Frisch, 1933). But it took almost another 50 years to realize the first focusing of an atomic beam in a near-resonant co-propagating laser beam using light forces (Bjorkhol ...
Mid Infrared digital holography and Terahertz imaging
... scattering object; what changes is just the percentage of scattered radiation that ends up in the recording device. The object beam and the reference beam usually travel different paths but, in order to obtain interference fringes, they must be coherent with each other and therefore, usually, are ex ...
... scattering object; what changes is just the percentage of scattered radiation that ends up in the recording device. The object beam and the reference beam usually travel different paths but, in order to obtain interference fringes, they must be coherent with each other and therefore, usually, are ex ...
Nanoreplicated positive and inverted submicrometer polymer
... to the surface. In terms of the material, the coinage metals including gold, silver, and copper are most commonly used as enhancing metal because their plasmonic resonance in visible to near-infrared range can further boost the scattering enhancement when the excitation light is in the corresponding ...
... to the surface. In terms of the material, the coinage metals including gold, silver, and copper are most commonly used as enhancing metal because their plasmonic resonance in visible to near-infrared range can further boost the scattering enhancement when the excitation light is in the corresponding ...
Symbolic computation and solitons of the nonlinear Schro¨dinger
... retarded time, a(z) is the group velocity dispersion parameter and b(z) is related to the Kerr nonlinearity, and M(z) and F(z) are inhomogeneous parameters related to phase modulation and loss/gain, which are the functions of the propagation distance z, respectively. The study of nonlinear wave prop ...
... retarded time, a(z) is the group velocity dispersion parameter and b(z) is related to the Kerr nonlinearity, and M(z) and F(z) are inhomogeneous parameters related to phase modulation and loss/gain, which are the functions of the propagation distance z, respectively. The study of nonlinear wave prop ...
Microscopic Light Field Particle Image Velocimetry
... The flow was seeded with fluorescent particles and pumped through microchannels at Reynolds numbers ranging from 0.016 to 0.028. Flow at Reynolds numbers in the range of 0.02 to 0.03 was seeded with fluorescent particles and pumped through microchannels. A light field microscope with a lateral resol ...
... The flow was seeded with fluorescent particles and pumped through microchannels at Reynolds numbers ranging from 0.016 to 0.028. Flow at Reynolds numbers in the range of 0.02 to 0.03 was seeded with fluorescent particles and pumped through microchannels. A light field microscope with a lateral resol ...
Patterned dielectric membranes designed for optical sensing
... means of improving health care. This has created a demand for high-sensitivity biosensors. By detecting low levels of disease specific molecules in human samples of blood, saliva, urine or spinal fluids, biosensors can be used to discover illnesses at a stage where they are still harmless and treata ...
... means of improving health care. This has created a demand for high-sensitivity biosensors. By detecting low levels of disease specific molecules in human samples of blood, saliva, urine or spinal fluids, biosensors can be used to discover illnesses at a stage where they are still harmless and treata ...
1 L5: Diffraction L5 DIFFRACTION Objectives Aims From this
... The wavefronts arriving at the slit are plane, but because of diffraction, the wavefronts on the other side will not be plane. Light arriving at any point in the aperture has a fixed phase relationship to light from the same part of the source arriving at any other point in the aperture. The simples ...
... The wavefronts arriving at the slit are plane, but because of diffraction, the wavefronts on the other side will not be plane. Light arriving at any point in the aperture has a fixed phase relationship to light from the same part of the source arriving at any other point in the aperture. The simples ...
Fine Structure Constant Defines Visual Transparency of Graphene
... To find accurate absolute values of T and G, in the analysis shown in Figs. 1B and S2, we have omitted the part of the transmittance spectra at λ <450 nm, which as discussed above was affected by hydrocarbon contamination. Also, our apparatus noise was somewhat higher in the infrared region so that ...
... To find accurate absolute values of T and G, in the analysis shown in Figs. 1B and S2, we have omitted the part of the transmittance spectra at λ <450 nm, which as discussed above was affected by hydrocarbon contamination. Also, our apparatus noise was somewhat higher in the infrared region so that ...
Sidelobe decline in single-photon 4Pi microscopy by Toraldo rings
... the position of the zeros of the function Q: Following the Toraldo’s method we have designed a pupil filter that consists of seven annular zones. As shown in Fig. 4 the zones have no absorption, having each pair of neighboring zones opposite phases. The normalized radii for the zones are r1 ¼ 0:41; ...
... the position of the zeros of the function Q: Following the Toraldo’s method we have designed a pupil filter that consists of seven annular zones. As shown in Fig. 4 the zones have no absorption, having each pair of neighboring zones opposite phases. The normalized radii for the zones are r1 ¼ 0:41; ...
1 Fundamental Optics www.cvimellesgriot.com
... f2 = focal length of the second element. d = distance from the secondary principal point of the first element to the primary principal point of the second element, positive if the primary principal point is to the right of the secondary principal point, negative otherwise (see figure 1.8b). s1″ = di ...
... f2 = focal length of the second element. d = distance from the secondary principal point of the first element to the primary principal point of the second element, positive if the primary principal point is to the right of the secondary principal point, negative otherwise (see figure 1.8b). s1″ = di ...
Surface plasmon resonance microscopy
Surface Plasmon Resonance Microscopy (SPRM) is a label free analytical tool that combines the surface plasmon resonance of metallic surfaces with imaging of the metallic surface.The heterogeneity of the refractive index of the metallic surface imparts high contrast images, caused by the shift in the resonance angle.SPRM can achieve a thickness sensitivity of few tenths of nanometer and lateral resolution achieves values of micrometer scale.SPRM is used to characterize surfaces, self-assembled monolayers, multilayer films, metal nanoparticles, oligonucleotides arrays, binding and reduction reactions.Surface Plasmon polaritons are surface electromagnetic waves coupled to oscillating free electrons of a metallic surface that propagate along a metal/dielectric interface.Since polaritons are highly sensitive to small changes in the refractive index of the metallic material,it can be used as a biosensing tool that does not require labeling. SPRM measurements can be made in real-time.Wang and collaborators studied the binding kinetics of membrane proteins in single cells.The experimental setup of an SPRM can be seen in the Figure 1, where an adherent cell is grown on a gold film and placed in an inverted microscope, p-polarized light was used to create the surface plasmons on the gold film and a CCD camera was used to create the SPR image.