Distributed Temperature Sensing Using Stimulated
... long distance measurements and sensing applications. The reflectrometric information is included in the phase difference of two interfering light beams reflected at the same scattering point on the fiber under test (FUT). The reflection position and local information can be determined by modulating ...
... long distance measurements and sensing applications. The reflectrometric information is included in the phase difference of two interfering light beams reflected at the same scattering point on the fiber under test (FUT). The reflection position and local information can be determined by modulating ...
The interference characteristics of light
... The cat’s eye reflector is well designed, diffraction limited [5] and has little sensitivity to the direction of the incidence light [8], so it is a cooperative target in application. But the cat-eye optical lens is a non-cooperative target whose parameters are unknown. By using the active laser det ...
... The cat’s eye reflector is well designed, diffraction limited [5] and has little sensitivity to the direction of the incidence light [8], so it is a cooperative target in application. But the cat-eye optical lens is a non-cooperative target whose parameters are unknown. By using the active laser det ...
Deriving object visibilities from interferograms obtained with a fiber
... part of the light at each telescope so that the coupling fluctuations can be monitored by the photometers which produce the photometric signals P1 and P2 . With a delay line, the observer has the capacity to control the overall optical pathlength difference (OPD) from the source to the recombination ...
... part of the light at each telescope so that the coupling fluctuations can be monitored by the photometers which produce the photometric signals P1 and P2 . With a delay line, the observer has the capacity to control the overall optical pathlength difference (OPD) from the source to the recombination ...
Inter 1-4
... When the experiment was first done, objections were raised about the sanctity of the results since there could have been diffraction effects from the edge of the slits. ...
... When the experiment was first done, objections were raised about the sanctity of the results since there could have been diffraction effects from the edge of the slits. ...
Digital Fourier Microscopy for Soft Matter Dynamics
... ideas closer to fluorescence correlation spectroscopy (FCS) [31] than to DLS, it was shown that the typical FCS real space analysis of number fluctuations in a small volume [32] could be replaced by a dynamic analysis of Fourier transformed microscope images with the aim of extracting simultaneous i ...
... ideas closer to fluorescence correlation spectroscopy (FCS) [31] than to DLS, it was shown that the typical FCS real space analysis of number fluctuations in a small volume [32] could be replaced by a dynamic analysis of Fourier transformed microscope images with the aim of extracting simultaneous i ...
Spun Fiber for Current Sensors
... Spun fibers are spun, not twisted. They have the axial rotation locked into the fiber during the fiber drawing process. This means that there are no torsional stresses within the fiber. A twist is where after manufacturing the fiber, a mechanical twist is applied by applying torsion to the fiber, th ...
... Spun fibers are spun, not twisted. They have the axial rotation locked into the fiber during the fiber drawing process. This means that there are no torsional stresses within the fiber. A twist is where after manufacturing the fiber, a mechanical twist is applied by applying torsion to the fiber, th ...
BioE 123 Teaching Material Stanford University
... shorter wavelengths lead to higher resolution. Thus, according to the formula above we can increase resolution by using either shorter wavelengths of light that are coming into the glass (λvacuum) or increase the refractive index of the glass material (nglass) to make λglass smaller (and thus achiev ...
... shorter wavelengths lead to higher resolution. Thus, according to the formula above we can increase resolution by using either shorter wavelengths of light that are coming into the glass (λvacuum) or increase the refractive index of the glass material (nglass) to make λglass smaller (and thus achiev ...
Focus Variation – a Robust Technology for High
... stage the x-y range can be exceeded up to 100 x 100 mm and more. In contrast to many other optical techniques that are limited to coaxial illumination, the maximum measurable slope angle is not only dependent on the numerical aperture of the objective. However, many different illumination sources (s ...
... stage the x-y range can be exceeded up to 100 x 100 mm and more. In contrast to many other optical techniques that are limited to coaxial illumination, the maximum measurable slope angle is not only dependent on the numerical aperture of the objective. However, many different illumination sources (s ...
Microscopes - Photonics Research Group
... eyepiece, albeit with residual error of the secondary spectrum and appreciable curvature of field. Early high-resolution compound microscopes were equipped with an (oilimmersible) Abbe condenser whose iris diaphragm, placed at the front focal plane of the condenser, could be off-centered to achieve ...
... eyepiece, albeit with residual error of the secondary spectrum and appreciable curvature of field. Early high-resolution compound microscopes were equipped with an (oilimmersible) Abbe condenser whose iris diaphragm, placed at the front focal plane of the condenser, could be off-centered to achieve ...
No Slide Title
... • Graph of loss vs. wavelength – From graph we see that around 1550nm and around 1310nm are best spots for transmitting – 850nm is also used because of ease of creating light source CSIS 625 ...
... • Graph of loss vs. wavelength – From graph we see that around 1550nm and around 1310nm are best spots for transmitting – 850nm is also used because of ease of creating light source CSIS 625 ...
Surface-enhanced Raman spectroscopy: nonlocal limitations
... the sharper one could make the geometry confining the plasmon oscillations. Nonlocal effects have been shown to result in large blueshifts and considerably reduced field enhancements (as compared to a local description) in conical tips [9], metallic dimers involving small gaps below a ...
... the sharper one could make the geometry confining the plasmon oscillations. Nonlocal effects have been shown to result in large blueshifts and considerably reduced field enhancements (as compared to a local description) in conical tips [9], metallic dimers involving small gaps below a ...
The Microscope in a Computer: Image Synthesis from Three
... assumption (see Section 3.2) in photolithography, scattering from any plane wave from an arbitrary direction is completely determined by the scattering from a plane-wave incident normally on the thin mask. This is because the thin mask is assumed to simply impart a position-dependent phase shift on ...
... assumption (see Section 3.2) in photolithography, scattering from any plane wave from an arbitrary direction is completely determined by the scattering from a plane-wave incident normally on the thin mask. This is because the thin mask is assumed to simply impart a position-dependent phase shift on ...
Passively Q-switched 0.1-mJ fiber laser system at
... energy is reached. The pulse energy’s stability should be much better with a diode laser as the pump source. In conclusion, we have demonstrated that very high pulse energies of 0.1 mJ in the 1.5-mm spectral region can be obtained from simple passively Q-switched fiber laser systems, involving fiber ...
... energy is reached. The pulse energy’s stability should be much better with a diode laser as the pump source. In conclusion, we have demonstrated that very high pulse energies of 0.1 mJ in the 1.5-mm spectral region can be obtained from simple passively Q-switched fiber laser systems, involving fiber ...
Compact Adaptive Optics Line Scanning Ophthalmoscope
... [11, 12]. AO stimulation is also being used to measure and begin to understand the characteristics and causes of intrinsic retinal signals [13, 14]. It has been used to study the organization of the human trichromatic cone mosaic and defects in color vision compared to standard psychophysical tests ...
... [11, 12]. AO stimulation is also being used to measure and begin to understand the characteristics and causes of intrinsic retinal signals [13, 14]. It has been used to study the organization of the human trichromatic cone mosaic and defects in color vision compared to standard psychophysical tests ...
Diffuse Reflectance Spectroscopy
... elastic scattering spectroscopy, is a noninvasive spectroscopic technique used in quantitative optical characterization of tissue. The basic principle behind DRS is depicted in Figure 1.1. Here a broadband light source with wavelength range from UV to NIR is irradiating the sample, followed by recor ...
... elastic scattering spectroscopy, is a noninvasive spectroscopic technique used in quantitative optical characterization of tissue. The basic principle behind DRS is depicted in Figure 1.1. Here a broadband light source with wavelength range from UV to NIR is irradiating the sample, followed by recor ...
Topic 12: Spatial Light Modulators and Modern Optical Systems
... Liquid Crystal: LC modulators switched by either thin-film transistors (transmissive displays), or silicon backplanes (reflective devices). Usable in all applications, but rather “slow”. Magneto-Optic: Pixelated crystal of Aluminum Garnet switched by array of magnetic coils using magneto-optic effec ...
... Liquid Crystal: LC modulators switched by either thin-film transistors (transmissive displays), or silicon backplanes (reflective devices). Usable in all applications, but rather “slow”. Magneto-Optic: Pixelated crystal of Aluminum Garnet switched by array of magnetic coils using magneto-optic effec ...
Finite element simulation of microphotonic lasing
... Here Ω is the simulation domain, ∂ Ω is the boundary of that domain, dA is a infinitesimal differential area on that boundary, and n̂ is the direction normal to the boundary. In the absence of any extra boundary terms, the boundary integral in Eq. (14) forces the tangential component of the magnetic ...
... Here Ω is the simulation domain, ∂ Ω is the boundary of that domain, dA is a infinitesimal differential area on that boundary, and n̂ is the direction normal to the boundary. In the absence of any extra boundary terms, the boundary integral in Eq. (14) forces the tangential component of the magnetic ...