optical properties of skin, subcutaneous, and muscle tissues
... 0:1 mm is a technically di±cult task.56 To solve this problem, a powerful light source combined with a sensitive detector must be used.75 Alternatively, it is possible to collect the collimated light together with some forward-scattered light using the third integrating sphere.76 In this case, the ...
... 0:1 mm is a technically di±cult task.56 To solve this problem, a powerful light source combined with a sensitive detector must be used.75 Alternatively, it is possible to collect the collimated light together with some forward-scattered light using the third integrating sphere.76 In this case, the ...
Influence of clearing solutions osmolarity on the optical properties of
... The optical properties control implies the change of the scattering or absorption properties of optically turbid media, including tissues and blood. Optical immersion is a rather effective method to decrease the scattering. This method is based on matching the refractive indices of scatterers and su ...
... The optical properties control implies the change of the scattering or absorption properties of optically turbid media, including tissues and blood. Optical immersion is a rather effective method to decrease the scattering. This method is based on matching the refractive indices of scatterers and su ...
Guided-mode triggered switching between TE orders of a metal
... low-loss plasmonic effect and its high interference contrast originate in the plasmon radiation strength of the rather deep grating being notably larger than the absorption coefficient of the plasmon mode. Although the coupled-mode analysis of the present TE switch hasn’t been developed, the same ra ...
... low-loss plasmonic effect and its high interference contrast originate in the plasmon radiation strength of the rather deep grating being notably larger than the absorption coefficient of the plasmon mode. Although the coupled-mode analysis of the present TE switch hasn’t been developed, the same ra ...
Measurement of Colloidal Forces with TIRM
... might stick to the glass. A stuck particle will not move when additional fluid is injected into the flowcell. Sticking is usually the result of insufficient charge at low ionic strengths (in the case of double-layer repulsion; or insufficient adsorbed polymer, in the case of steric repulsion) on the ...
... might stick to the glass. A stuck particle will not move when additional fluid is injected into the flowcell. Sticking is usually the result of insufficient charge at low ionic strengths (in the case of double-layer repulsion; or insufficient adsorbed polymer, in the case of steric repulsion) on the ...
Template for Electronic Submission to ACS Journals
... passive optical devices.1 Such structures, also known as distributed Bragg reflectors, acquire their optical properties through the periodic modulation of the refractive index, so they are also classified as one-dimensional photonic crystals (1DPC). Many applications of these materials can be found ...
... passive optical devices.1 Such structures, also known as distributed Bragg reflectors, acquire their optical properties through the periodic modulation of the refractive index, so they are also classified as one-dimensional photonic crystals (1DPC). Many applications of these materials can be found ...
Get PDF - OSA Publishing
... resulted in two key approaches: the interferometric or phase mask method [1] and point-bypoint (PbP) inscription [2–5]. The PbP approach is the focus if this paper as it provides a useful means to produce flexible grating structures, as variations in the grating length, pitch, and spectral response ...
... resulted in two key approaches: the interferometric or phase mask method [1] and point-bypoint (PbP) inscription [2–5]. The PbP approach is the focus if this paper as it provides a useful means to produce flexible grating structures, as variations in the grating length, pitch, and spectral response ...
Optical parameters of milk fat globules for laser light scattering
... 20 oC was measured at 589 nm and was calculated to be 1.470 at 466 nm and 1.460 at 633 nm. Because the software of the LLS equipment does not allow for differences in ni,water at the two different wavelengths, ni,fat was corrected to reflect the difference between the refractive indices of the fat g ...
... 20 oC was measured at 589 nm and was calculated to be 1.470 at 466 nm and 1.460 at 633 nm. Because the software of the LLS equipment does not allow for differences in ni,water at the two different wavelengths, ni,fat was corrected to reflect the difference between the refractive indices of the fat g ...
Sample Pages
... (Note: the effective loss coefficient may be negative in an amplifying fiber—see p. 74.) In general, each mode can have its own values of and . The number of modes, their field distributions, and their and values depend on the optical frequency or the wavelength . ...
... (Note: the effective loss coefficient may be negative in an amplifying fiber—see p. 74.) In general, each mode can have its own values of and . The number of modes, their field distributions, and their and values depend on the optical frequency or the wavelength . ...
Calibration of the amplification coefficient in
... traditional SHS approach [14]. The concept dates back at least to Ikonen et al. [15], and has appeared in several configurations [16, 17]. Limitations of this approach include the Abbe offset between the laser interferometer and the measurement path, cosine error, and the need for additional hardwar ...
... traditional SHS approach [14]. The concept dates back at least to Ikonen et al. [15], and has appeared in several configurations [16, 17]. Limitations of this approach include the Abbe offset between the laser interferometer and the measurement path, cosine error, and the need for additional hardwar ...
Composite THz materials using aligned metallic
... THz regime, there is a strong interest in realizing THz optical devices using microstructured materials operating in the effective medium regime (metamaterial regime). Particularly, if the size of the features making a composite is much smaller than the wavelength of light, then such a composite ca ...
... THz regime, there is a strong interest in realizing THz optical devices using microstructured materials operating in the effective medium regime (metamaterial regime). Particularly, if the size of the features making a composite is much smaller than the wavelength of light, then such a composite ca ...
Principles and Clinical Applications of Ray-Tracing
... laser beam is shifted to another position, and the localisation of the next point in the retina is registered. This process continues until 64 laser beams have been projected through the entrance pupil 4 times each (256 points) at high speed (approximately 250 milliseconds). Each of these points rep ...
... laser beam is shifted to another position, and the localisation of the next point in the retina is registered. This process continues until 64 laser beams have been projected through the entrance pupil 4 times each (256 points) at high speed (approximately 250 milliseconds). Each of these points rep ...
Modeling of Lithium Niobate Ridge Waveguides - Rays
... m and n are two modal orders which are obtained by solving an eigenvalue equation from the resulting process of solving the wave equations found in Section 2.8. For the purpose of this study it is enough to say that m = n = 0 is the fundamental mode which is equivalent with single-mode propagation a ...
... m and n are two modal orders which are obtained by solving an eigenvalue equation from the resulting process of solving the wave equations found in Section 2.8. For the purpose of this study it is enough to say that m = n = 0 is the fundamental mode which is equivalent with single-mode propagation a ...
Correlated diffraction and fluorescence in the backscattering
... beam is injected close to a normal incidence and the scattered light is collected over all the emergence and azimuthal directions and analyzed in the spectrometer. The third one defines a bidirectional measurement where, for a fixed angle of incidence, diffracted wavelengths are searched at specific ...
... beam is injected close to a normal incidence and the scattered light is collected over all the emergence and azimuthal directions and analyzed in the spectrometer. The third one defines a bidirectional measurement where, for a fixed angle of incidence, diffracted wavelengths are searched at specific ...
Combining Photonic Crystal and Optical Monte
... diffractive effects. To measure the actual geometric parameters of the fabricated PhCs, scanning electron microscopy (SEM) images were acquired. 2) Transmission Measurements: The angular transmission characteristics of the samples were measured with the experimental setup shown in Fig. 3a. In this s ...
... diffractive effects. To measure the actual geometric parameters of the fabricated PhCs, scanning electron microscopy (SEM) images were acquired. 2) Transmission Measurements: The angular transmission characteristics of the samples were measured with the experimental setup shown in Fig. 3a. In this s ...
High-refractive-index composite materials for
... spiral shape of a rolled Bragg fiber (see inset of Fig. 6) on the modal transmission properties of the fiber. We compared in Fig. 6 the losses of a fundamental core mode as computed using a T-matrix theory for circular multilayers [14], versus the results of a finite element method (FEM) simulation ...
... spiral shape of a rolled Bragg fiber (see inset of Fig. 6) on the modal transmission properties of the fiber. We compared in Fig. 6 the losses of a fundamental core mode as computed using a T-matrix theory for circular multilayers [14], versus the results of a finite element method (FEM) simulation ...
Resolution in Confocal Microscopy
... The FWHM value is only one method of measuring resolution. Another common method is the Rayleigh criteria [19] where we would consider the distance between the first diffraction minimum and the central maximum as being the resolution of the optical signal. Note that although there FWHM might be in t ...
... The FWHM value is only one method of measuring resolution. Another common method is the Rayleigh criteria [19] where we would consider the distance between the first diffraction minimum and the central maximum as being the resolution of the optical signal. Note that although there FWHM might be in t ...
Light sheet-based fluorescence microscopy: more dimensions, more
... finally (4) control of different mechanical and electronic parts, collection, and postprocessing of the data (Fig. 5). The illumination unit generates the light sheet that is used to excite the fluorophores. It overlaps with the focal plane in the specimen. The laser provides a collimated beam. An a ...
... finally (4) control of different mechanical and electronic parts, collection, and postprocessing of the data (Fig. 5). The illumination unit generates the light sheet that is used to excite the fluorophores. It overlaps with the focal plane in the specimen. The laser provides a collimated beam. An a ...
Dispersion staining
The optical properties of all liquid and solid materials change as a function of the wavelength of light used to measure them. This change as a function of wavelength is called the dispersion of the optical properties. The graph created by plotting the optical property of interest by the wavelength at which it is measured is called a dispersion curve.The dispersion staining is an analytical technique used in light microscopy that takes advantage of the differences in the dispersion curve of the refractive index of an unknown material relative to a standard material with a known dispersion curve to identify or characterize that unknown material. These differences become manifest as a color when the two dispersion curves intersect for some visible wavelength. This is an optical staining technique and requires no stains or dyes to produce the color. Its primary use today is in the conformation of the presence of asbestos in construction materials but it has many other applications.