Nanostructured Holograms for Broadband Manipulation of Vector
... was captured by a CCD camera. By rotating the linear polarizer in front of the beam with the characteristic doughnut intensity profile (m = +1 diffraction order), we demonstrated that its polarization is oriented radially, in agreement with Figure 2. As expected from the design, radially polarized bea ...
... was captured by a CCD camera. By rotating the linear polarizer in front of the beam with the characteristic doughnut intensity profile (m = +1 diffraction order), we demonstrated that its polarization is oriented radially, in agreement with Figure 2. As expected from the design, radially polarized bea ...
The color of shock waves in photonic crystals Abstract Evan J. Reed,
... as multiple discrete frequencies if the Fourier transform time window is large enough to encompass at least several output pulses. Experimentally, interpretation of the output light in Figure 2 as equally-spaced discrete frequencies or pulses is a matter of resolution in the experimental apparatus a ...
... as multiple discrete frequencies if the Fourier transform time window is large enough to encompass at least several output pulses. Experimentally, interpretation of the output light in Figure 2 as equally-spaced discrete frequencies or pulses is a matter of resolution in the experimental apparatus a ...
Enhanced visualization of choroidal vessels using ultrahigh
... As demonstrated in Fig. 1, ophthalmic ultrahigh resolution OCT operating in the ~800 nm wavelength range does not provide sufficient access to the choroid when the RPE layer is intact. Considering that absorption of light from melanin, the major chromophore in the RPE, decreases monotonically with i ...
... As demonstrated in Fig. 1, ophthalmic ultrahigh resolution OCT operating in the ~800 nm wavelength range does not provide sufficient access to the choroid when the RPE layer is intact. Considering that absorption of light from melanin, the major chromophore in the RPE, decreases monotonically with i ...
Nomarski differential interference-contrast microscopy
... cemented surface of th is prism. (For greater clarity, one of the prism segments is dotted) . If the center plane of the Wollaston prism lies in the iamp-side focal plane of the condenser, the two beams will travel along parallel path s, slightly separated laterally in relati on to each other, after ...
... cemented surface of th is prism. (For greater clarity, one of the prism segments is dotted) . If the center plane of the Wollaston prism lies in the iamp-side focal plane of the condenser, the two beams will travel along parallel path s, slightly separated laterally in relati on to each other, after ...
Course: Physics 1 Module 3: Optics and Wave Phenomena
... sound waves; light and other forms of electromagnetic radiation. • While a mechanical wave such as a sound wave exists in a medium, waves of electromagnetic radiation including light can travel through vacuum, that is, without any medium. • Periodic waves are characterized by crests (highs) and trou ...
... sound waves; light and other forms of electromagnetic radiation. • While a mechanical wave such as a sound wave exists in a medium, waves of electromagnetic radiation including light can travel through vacuum, that is, without any medium. • Periodic waves are characterized by crests (highs) and trou ...
Theoretical studies of light propagation in photonic and plasmonic devices Link¨
... The idea of constructing chips that operate on light signals instead of electricity has engaged the minds of scientists during the last decade. Communicating photons instead of electrons would provide revolutionary breakthrough not only in the performance of devices, which can distribute data at the ...
... The idea of constructing chips that operate on light signals instead of electricity has engaged the minds of scientists during the last decade. Communicating photons instead of electrons would provide revolutionary breakthrough not only in the performance of devices, which can distribute data at the ...
Subwavelength-diameter silica wires for low
... were studied, but their optical properties and applications remained uninvestigated8,9. It was not until a century later that researchers began to investigate the optical applications of silica wires made by drawing high-purity glass fibres from a laser-heated melt10–14. With a diameter of more than ...
... were studied, but their optical properties and applications remained uninvestigated8,9. It was not until a century later that researchers began to investigate the optical applications of silica wires made by drawing high-purity glass fibres from a laser-heated melt10–14. With a diameter of more than ...
Irradiance transport equation from geometrical - E
... Based on Poynting’s theorem together with Poynting’s vector in the geometrical optics limit, an analytical general conservation expression has been obtained; this expression relates the phase and the intensity of a monochromatic field. In all the calculations we assume that the monochromatic field p ...
... Based on Poynting’s theorem together with Poynting’s vector in the geometrical optics limit, an analytical general conservation expression has been obtained; this expression relates the phase and the intensity of a monochromatic field. In all the calculations we assume that the monochromatic field p ...
technical paper
... Reflectance is also important in telecommunication devices such as optical waveguides which function on total internal reflectance. In addition to waveguides, dense wavelength division multiplexing (DWDM) filters reflect over very narrow wavelength bands and are used to separate optical signals in t ...
... Reflectance is also important in telecommunication devices such as optical waveguides which function on total internal reflectance. In addition to waveguides, dense wavelength division multiplexing (DWDM) filters reflect over very narrow wavelength bands and are used to separate optical signals in t ...
Resonant bio- and chemical sensors using low-refractive
... sensitive to changes in the real part of the analyte refractive index. Moreover, if narrow absorption lines are present in the analyte transmission spectrum, due to Kramers–Kronig relation this will also result in strong variation in the real part of the refractive index in the vicinity of an absorp ...
... sensitive to changes in the real part of the analyte refractive index. Moreover, if narrow absorption lines are present in the analyte transmission spectrum, due to Kramers–Kronig relation this will also result in strong variation in the real part of the refractive index in the vicinity of an absorp ...
Introduction of Minor Nonlinear Effect Strain Insensitive SMF Fitting
... conventional fiber manufacture process. In contrast to conventional optical fibers, in PCFs, not only in higher wavelengths the BL surpasses the critical value but also in lower wavelengths they hold a short-wavelength bend loss edge due to bend-induced coupling from the fundamental to the higher-or ...
... conventional fiber manufacture process. In contrast to conventional optical fibers, in PCFs, not only in higher wavelengths the BL surpasses the critical value but also in lower wavelengths they hold a short-wavelength bend loss edge due to bend-induced coupling from the fundamental to the higher-or ...
Controllable optical negative refraction and
... that is, the pulses get stretched in time as they travel through the experiment. This has been indeed confirmed by measuring the autocorrelation function of the pulses using the multi-photon excited luminescence as a signal (data not shown). For 10 mW of laser power in each of the excitation beams, ...
... that is, the pulses get stretched in time as they travel through the experiment. This has been indeed confirmed by measuring the autocorrelation function of the pulses using the multi-photon excited luminescence as a signal (data not shown). For 10 mW of laser power in each of the excitation beams, ...
Convergence of vector spherical wave expansion
... 4 July 2011 / Vol. 19, No. S4 / OPTICS EXPRESS A772 ...
... 4 July 2011 / Vol. 19, No. S4 / OPTICS EXPRESS A772 ...
Polarization and Polarization Control
... Precise control of polarization behavior is necessary to obtain optimal performance from your optical components and systems. Characteristics such as reflectivity, insertion loss, and beam splitter ratios will be different for different polarizations. Such dependencies need to be carefully accounted ...
... Precise control of polarization behavior is necessary to obtain optimal performance from your optical components and systems. Characteristics such as reflectivity, insertion loss, and beam splitter ratios will be different for different polarizations. Such dependencies need to be carefully accounted ...
AS Waves and Optics
... The core of another fibre is made with a smaller diameter than the first, as shown inFigure 2. The curvature is the same and the path of a ray of light is shown. ...
... The core of another fibre is made with a smaller diameter than the first, as shown inFigure 2. The curvature is the same and the path of a ray of light is shown. ...
Physical optics - Manual (with template)
... and destructive interference if they approach this point out of phase. To best observe diffraction and interference, a monochromatic and coherent light source is needed. All light waves emitted by a monochromatic light source have the same frequency and wavelength. Coherent light refers to light whe ...
... and destructive interference if they approach this point out of phase. To best observe diffraction and interference, a monochromatic and coherent light source is needed. All light waves emitted by a monochromatic light source have the same frequency and wavelength. Coherent light refers to light whe ...
Metal surface structuring with spatiotemporally focused femtosecond
... wavelength of the laser pulses. However, when switching to the conventional focusing scheme by maintaining the same NA value of the focal system, we observed a long filament of a length of ~4 mm from the side of optical axis of the focal lens, as indicated by the spatial profile of the fluorescence ...
... wavelength of the laser pulses. However, when switching to the conventional focusing scheme by maintaining the same NA value of the focal system, we observed a long filament of a length of ~4 mm from the side of optical axis of the focal lens, as indicated by the spatial profile of the fluorescence ...
Near-field photonic forces
... is zero when the field has a single plane-wave component, as in the next case. ...
... is zero when the field has a single plane-wave component, as in the next case. ...
Miniaturized modules for light sheet microscopy with low chromatic
... concave-convex lens – of 25 mm focal length (Edmund Optics, #68-160, N-BK7/N-SF5) a numerical aperture AN = 0.08 is attained when using the relation AN = sinα ࣈ tanα = A/2f’ for small angles. The resulting beam waist d = λ/AN = 5.9 μm is defined by the thinnest line described by the distance between ...
... concave-convex lens – of 25 mm focal length (Edmund Optics, #68-160, N-BK7/N-SF5) a numerical aperture AN = 0.08 is attained when using the relation AN = sinα ࣈ tanα = A/2f’ for small angles. The resulting beam waist d = λ/AN = 5.9 μm is defined by the thinnest line described by the distance between ...
Interference of Light waves Wave Optics
... Ray 2 also travels an additional distance of 2t before the waves recombine For constructive interference ...
... Ray 2 also travels an additional distance of 2t before the waves recombine For constructive interference ...
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.