Light Microscopy
... i.e. flat-field correction, and K (compensating for residual objective aberrations) can sometimes be found. W usually means wide-field (unnecessary information if you have the field-of-view number). A real microscope is considerably more complicated than those illustrated in Figs. 1 and 2. First, bo ...
... i.e. flat-field correction, and K (compensating for residual objective aberrations) can sometimes be found. W usually means wide-field (unnecessary information if you have the field-of-view number). A real microscope is considerably more complicated than those illustrated in Figs. 1 and 2. First, bo ...
Two electric field Monte Carlo models of coherent backscattering of
... Modeling of coherent polarized light propagation in turbid scattering medium by the Monte Carlo method provides an ultimate understanding of coherent effects of multiple scattering, such as enhancement of coherent backscattering and peculiarities of laser speckle formation in dynamic light scatterin ...
... Modeling of coherent polarized light propagation in turbid scattering medium by the Monte Carlo method provides an ultimate understanding of coherent effects of multiple scattering, such as enhancement of coherent backscattering and peculiarities of laser speckle formation in dynamic light scatterin ...
A finite element beam propagation method for simulation of liquid
... To demonstrate the wide applicability of the presented beam propagation algorithm, we illustrate in Section 3 how the method can be used to simulate the light propagation in three applications involving anisotropic materials of arbitrary orientation. A first example illustrates, as a test example, t ...
... To demonstrate the wide applicability of the presented beam propagation algorithm, we illustrate in Section 3 how the method can be used to simulate the light propagation in three applications involving anisotropic materials of arbitrary orientation. A first example illustrates, as a test example, t ...
Monte Carlo Simulation of Light Scattering on a Sound Wave
... Light propagated through a turbid medium can be tagged by the continuous– wave ultrasound [4] or by pulsed ultrasound [25]. In [25] the combination of pulsed ultrasound and laser light is used, and the ultrasound-modulated optical signal without buried objects is detected. The model proposed by L.Wa ...
... Light propagated through a turbid medium can be tagged by the continuous– wave ultrasound [4] or by pulsed ultrasound [25]. In [25] the combination of pulsed ultrasound and laser light is used, and the ultrasound-modulated optical signal without buried objects is detected. The model proposed by L.Wa ...
Towards Multimaterial Multifunctional Fibres that See, Hear, Sense and Communicate
... bandgap10–12 (PBG) effect have been demonstrated. The wide variety of results obtained by these fibres has been recently reviewed, and the reader is referred to these reviews for further details13,14. The materials used in these fibres are the traditional materials, namely silica glasses or polymers ...
... bandgap10–12 (PBG) effect have been demonstrated. The wide variety of results obtained by these fibres has been recently reviewed, and the reader is referred to these reviews for further details13,14. The materials used in these fibres are the traditional materials, namely silica glasses or polymers ...
Continuous wave Nd:YAG channel waveguide laser produced by
... owing to the reduced active volumes, waveguide lasers show many advantages when compared to their bulk counterparts, such as lower threshold and higher laser slope efficiencies [1]. Those features make waveguide laser devices suitable as fundamental components in modern integrated photonic systems [ ...
... owing to the reduced active volumes, waveguide lasers show many advantages when compared to their bulk counterparts, such as lower threshold and higher laser slope efficiencies [1]. Those features make waveguide laser devices suitable as fundamental components in modern integrated photonic systems [ ...
Fabrication of submicrometer 3D structures by one
... (a) Cross section through the middle of the photonic crystal microcavity. A defect is formed in the 2D photonic crystal by removing a single hole, thus forming an energy well for photons similar to that for electrons in a quantum wire structure. Photons are also localized vertically by TIR at the ai ...
... (a) Cross section through the middle of the photonic crystal microcavity. A defect is formed in the 2D photonic crystal by removing a single hole, thus forming an energy well for photons similar to that for electrons in a quantum wire structure. Photons are also localized vertically by TIR at the ai ...
Light fan driven by relativistic laser pulse
... can be transported to a small volume in very short time. The twisted light with strongest torque by far can be found in twisted laser driven HHG experiments. In the experiments of Zurch et al. [21], a 800 nm laser is reflected from the spatial light modulator to obtain a twisted light with peaking i ...
... can be transported to a small volume in very short time. The twisted light with strongest torque by far can be found in twisted laser driven HHG experiments. In the experiments of Zurch et al. [21], a 800 nm laser is reflected from the spatial light modulator to obtain a twisted light with peaking i ...
Aberrations
... 1) “Aberrations” will be considered as small errors in an optical system that is already producing a reasonable image. This means that wavefronts will deviate from the ideal (usually spherical, for an imaging system) by only a few wavelengths. Ground glass, structural glass bricks and shower doors w ...
... 1) “Aberrations” will be considered as small errors in an optical system that is already producing a reasonable image. This means that wavefronts will deviate from the ideal (usually spherical, for an imaging system) by only a few wavelengths. Ground glass, structural glass bricks and shower doors w ...
Measuring the complex orbital angular momentum spectrum of light
... intensity patterns in Figs. 3(a) and 3(b) have similar shapes, but different azimuthal directions, according to the phase shift. With our proposed method, the corresponding complex OAM spectra can be extracted. Figures 3(c) and 3(d) show the obtained OAM spectra corresponding to the light beam in Fi ...
... intensity patterns in Figs. 3(a) and 3(b) have similar shapes, but different azimuthal directions, according to the phase shift. With our proposed method, the corresponding complex OAM spectra can be extracted. Figures 3(c) and 3(d) show the obtained OAM spectra corresponding to the light beam in Fi ...
LASER LIGHT SCATTERING FOR INVESTIGATION OF PARTICLE
... which green coffee (raw bean) and cup test (liquoring) analysis respectively for identification of coffee quality. However, these physical and chemical methods for identification of coffee quality are expensive, time and labor consuming and less precise. For many years measurement techniques based o ...
... which green coffee (raw bean) and cup test (liquoring) analysis respectively for identification of coffee quality. However, these physical and chemical methods for identification of coffee quality are expensive, time and labor consuming and less precise. For many years measurement techniques based o ...
Module P6.3 Optical elements: prisms, lenses and spherical mirrors
... known behaviour of light rays when reflected from mirrors or refracted at the boundary between two transparent optical media. The magnifying glass is just one application of a thin lens and the mirrors listed above are examples of spherical mirrors. An understanding of the action of these simple opt ...
... known behaviour of light rays when reflected from mirrors or refracted at the boundary between two transparent optical media. The magnifying glass is just one application of a thin lens and the mirrors listed above are examples of spherical mirrors. An understanding of the action of these simple opt ...
ABSTRACT Title of Document:
... One would normally think to increase the transmit power to increase range. However, this does not produce significant increases in link range particularly within dense fog. For example, if one were to try transmitting at the highest conceivable power of about 10 W, which would be above the eye safe ...
... One would normally think to increase the transmit power to increase range. However, this does not produce significant increases in link range particularly within dense fog. For example, if one were to try transmitting at the highest conceivable power of about 10 W, which would be above the eye safe ...
Introduction to Diffraction Grating
... Transmission gratings simplify optical designs and can be beneficial in fixed grating applications such as spectrographs. Thorlabs’ offering of blazed transmission gratings is designed for optimum performance in the visible, UV, or near IR spectrum, with varying dispersiveness. In most cases, the ef ...
... Transmission gratings simplify optical designs and can be beneficial in fixed grating applications such as spectrographs. Thorlabs’ offering of blazed transmission gratings is designed for optimum performance in the visible, UV, or near IR spectrum, with varying dispersiveness. In most cases, the ef ...
Role of the Tunneling Ray in Near-Critical-Angle
... When light is scattered by a large particle possessing a high degree of symmetry, such as a sphere, spheroid, or circular cylinder, and the scattered light is examined in the context of ray theory, a partial focusing of the light rays called an optical caustic occurs on certain surfaces in the near ...
... When light is scattered by a large particle possessing a high degree of symmetry, such as a sphere, spheroid, or circular cylinder, and the scattered light is examined in the context of ray theory, a partial focusing of the light rays called an optical caustic occurs on certain surfaces in the near ...
1 Introduction - Stony Brook Laser Teaching Center
... Much difficulty is often encountered in determining an appropriate mode-matching lens and properly spacing and aligning the optical elements in the traditional mode converter [15]. While experimenting with these parameters, the creation of a dark-core beam without the use of a second cylinder lens w ...
... Much difficulty is often encountered in determining an appropriate mode-matching lens and properly spacing and aligning the optical elements in the traditional mode converter [15]. While experimenting with these parameters, the creation of a dark-core beam without the use of a second cylinder lens w ...
Theoretical studies of light propagation in photonic and plasmonic devices Link¨
... made photonic crystals so popular is their basic feature of having gaps in the energy spectrum that forbid light to travel at certain wavelengths. Such the gaps in the spectra provide very effective confinement of the light within photonic crystals that can be exploited as a basis for a large number ...
... made photonic crystals so popular is their basic feature of having gaps in the energy spectrum that forbid light to travel at certain wavelengths. Such the gaps in the spectra provide very effective confinement of the light within photonic crystals that can be exploited as a basis for a large number ...
Proteins in High Electric Fields - BYU ScholarsArchive
... aspects of the reaction. This is particularly attractive for applications where other aspects of the reaction cannot be modified, such as in vivo protein reactions. Since all proteins are made up of a subset of amino acids, all of which are composed primarily of hydrogen, carbon, nitrogen, and oxyge ...
... aspects of the reaction. This is particularly attractive for applications where other aspects of the reaction cannot be modified, such as in vivo protein reactions. Since all proteins are made up of a subset of amino acids, all of which are composed primarily of hydrogen, carbon, nitrogen, and oxyge ...
Rayleigh Scattering
... • The technique is not species selective, since all atoms/molecules/particles t / l l / ti l scatter tt att the th same wavelength. • For accurate thermometry, the Rayleigh cross sections for individual species must be taken into account, which is hard work in a twodimensional image since the mole f ...
... • The technique is not species selective, since all atoms/molecules/particles t / l l / ti l scatter tt att the th same wavelength. • For accurate thermometry, the Rayleigh cross sections for individual species must be taken into account, which is hard work in a twodimensional image since the mole f ...
Anti-reflective coating
An antireflective or anti-reflection (AR) coating is a type of optical coating applied to the surface of lenses and other optical elements to reduce reflection. In typical imaging systems, this improves the efficiency since less light is lost. In complex systems such as a telescope, the reduction in reflections also improves the contrast of the image by elimination of stray light. This is especially important in planetary astronomy. In other applications, the primary benefit is the elimination of the reflection itself, such as a coating on eyeglass lenses that makes the eyes of the wearer more visible to others, or a coating to reduce the glint from a covert viewer's binoculars or telescopic sight.Many coatings consist of transparent thin film structures with alternating layers of contrasting refractive index. Layer thicknesses are chosen to produce destructive interference in the beams reflected from the interfaces, and constructive interference in the corresponding transmitted beams. This makes the structure's performance change with wavelength and incident angle, so that color effects often appear at oblique angles. A wavelength range must be specified when designing or ordering such coatings, but good performance can often be achieved for a relatively wide range of frequencies: usually a choice of IR, visible, or UV is offered.