Rate equation model of bulk optical damage of silica - AS
... where e is the electron charge, m* is the effective electron mass, ε is the relative permittivity of the medium, and ε0 is the vacuum permittivity. For 1064 nm light, the critical density of fused silica is 2.08 x 1021/cm3. When the free electron density reaches this level, incoming laser light is s ...
... where e is the electron charge, m* is the effective electron mass, ε is the relative permittivity of the medium, and ε0 is the vacuum permittivity. For 1064 nm light, the critical density of fused silica is 2.08 x 1021/cm3. When the free electron density reaches this level, incoming laser light is s ...
Measurement of the Number of Atoms in a Magneto
... is done to reduce the linewidth of the laser. In an external cavity laser, the beam exiting the laser diode hits a grating at an angle. The first order beam is reflected back into the laser diode while the zeroth order beam is used in the experiment. Thus, mainly the wavelength that is back-reflecte ...
... is done to reduce the linewidth of the laser. In an external cavity laser, the beam exiting the laser diode hits a grating at an angle. The first order beam is reflected back into the laser diode while the zeroth order beam is used in the experiment. Thus, mainly the wavelength that is back-reflecte ...
optical coherence tomography
... where k is the wave vector of the illuminating wave and uk(i) u=k=(2·p/l) is the wave number. Let E (s) (r,k(s) ,t) be the scattered light wave. In 1969, Wolf6 showed that within the accuracy of the first Born approximation, the three-dimensional distribution of the scattering potential F(r) of the ...
... where k is the wave vector of the illuminating wave and uk(i) u=k=(2·p/l) is the wave number. Let E (s) (r,k(s) ,t) be the scattered light wave. In 1969, Wolf6 showed that within the accuracy of the first Born approximation, the three-dimensional distribution of the scattering potential F(r) of the ...
Refractive Indices, Order Parameter and Optical Transmittance
... S = 12 h3 cos2 θ − 1i, where θ is angle between optic axis and long molecular axis of a molecule. Macroscopic order parameter (Q) as determined by different properties differs among them and also differs from microscopic order parameter because the effect of the local field is different on different ...
... S = 12 h3 cos2 θ − 1i, where θ is angle between optic axis and long molecular axis of a molecule. Macroscopic order parameter (Q) as determined by different properties differs among them and also differs from microscopic order parameter because the effect of the local field is different on different ...
Disturbance detection in snow using polarimetric imagery of the
... named SALSA. This device implemented a fast switching liquid crystal polarizing filter to separate polarized light onto a 782 x 582 pixel detector operating in the 400 to 700 nanometer range. The data were then analyzed for polarimetric signatures by isolating the disturbances from the background an ...
... named SALSA. This device implemented a fast switching liquid crystal polarizing filter to separate polarized light onto a 782 x 582 pixel detector operating in the 400 to 700 nanometer range. The data were then analyzed for polarimetric signatures by isolating the disturbances from the background an ...
Optical forces through guided light deflections
... or light scattering [20–23]. In this work we bring focus to the object shaping aspects of optimizing the mechanical effects of optical fields. We demonstrated in a recent work the optical manipulation of 2PP-fabricated free-floating waveguides [12]. Here we again consider three-dimensional waveguide ...
... or light scattering [20–23]. In this work we bring focus to the object shaping aspects of optimizing the mechanical effects of optical fields. We demonstrated in a recent work the optical manipulation of 2PP-fabricated free-floating waveguides [12]. Here we again consider three-dimensional waveguide ...
Polarization microscopy with the LC-PolScope
... And use the Bertrand lens .....................................................................................................25 Example Images and Movies ....................................................................................................25 Glossary of polarization optical terms .. ...
... And use the Bertrand lens .....................................................................................................25 Example Images and Movies ....................................................................................................25 Glossary of polarization optical terms .. ...
Application of Digital Phase-shift Shadow Moiré to Micro
... the phase of the spatial carrier is modulated by the shape of the object surface. When using phase-shift projection Moiré [1], the camera grating is phase-shifted against the projection grating. This technique can be applied for precision measurement of fine objects. In a digital projection Moiré sy ...
... the phase of the spatial carrier is modulated by the shape of the object surface. When using phase-shift projection Moiré [1], the camera grating is phase-shifted against the projection grating. This technique can be applied for precision measurement of fine objects. In a digital projection Moiré sy ...
A Reliable Method For Extraction Of Material Parameters In
... [3], and superconductors [4]. For parameters extraction, the temporal profiles of the terahertz pulses are recorded twice, the first time without the sample to be characterized, and the second time with the sample. The recorded profiles correspond to the temporal dependence of the electric field ass ...
... [3], and superconductors [4]. For parameters extraction, the temporal profiles of the terahertz pulses are recorded twice, the first time without the sample to be characterized, and the second time with the sample. The recorded profiles correspond to the temporal dependence of the electric field ass ...
WAVE INTERACTIONS WITH ARRAYS OF BOTTOM
... bottom-mounted cylinders, have received particular attention due to the wide range of application. By trapping and reflecting wave energy, arrays of cylinders can be used for coastal protection. For certain geometries, cylinder arrays can focus wave energy to a particular point in the wave field. Th ...
... bottom-mounted cylinders, have received particular attention due to the wide range of application. By trapping and reflecting wave energy, arrays of cylinders can be used for coastal protection. For certain geometries, cylinder arrays can focus wave energy to a particular point in the wave field. Th ...
SHS_OH_flame_ApplOpt_revision_RJB
... approximately one degree (half angle). The light expands over the McKenna burner which burns a stoichiometric mixture of ethylene and air, producing significant amounts of OH. The light is then sent through a telescope composed of an f = -125 mm lens followed by a f = 200 mm lens. The telescope deli ...
... approximately one degree (half angle). The light expands over the McKenna burner which burns a stoichiometric mixture of ethylene and air, producing significant amounts of OH. The light is then sent through a telescope composed of an f = -125 mm lens followed by a f = 200 mm lens. The telescope deli ...
Planoconcave lens by negative refraction of stacked subwavelength
... Since the first experimental confirmation by Smith’s group [3] of a NRI medium at microwaves using arrays of metallic wires to get negative dielectric permittivity [4], mixed with arrays of split rings resonators (SRRs) to obtain negative magnetic permeability [5], several attempts have been done to ...
... Since the first experimental confirmation by Smith’s group [3] of a NRI medium at microwaves using arrays of metallic wires to get negative dielectric permittivity [4], mixed with arrays of split rings resonators (SRRs) to obtain negative magnetic permeability [5], several attempts have been done to ...
Disorder-Enhanced Imaging with Spatially Controlled Light
... information was then used to control the propagation of scattered light by forming a complex wave front that, after being scattered, ends up in a single sharp focus[63, 65] (Fig. 1.1). One of the big advantages of this approach, called wave front shaping, is that it does not require a source at the ...
... information was then used to control the propagation of scattered light by forming a complex wave front that, after being scattered, ends up in a single sharp focus[63, 65] (Fig. 1.1). One of the big advantages of this approach, called wave front shaping, is that it does not require a source at the ...
Notes on optical fibres and fibre bundles
... M(R) ≈ M0 (1 - DFn22/(R NA2)) where M0 = number of propagating modes when no bending is present M(R) = number of propagating modes when bending is present n2 = refractive index of cladding R = bend radius DF= fiber diameter NA = fibre numerical aperture The percentage of light leaking from the diff ...
... M(R) ≈ M0 (1 - DFn22/(R NA2)) where M0 = number of propagating modes when no bending is present M(R) = number of propagating modes when bending is present n2 = refractive index of cladding R = bend radius DF= fiber diameter NA = fibre numerical aperture The percentage of light leaking from the diff ...
The mechanism for continuum polarization in laser induced
... studies of Al and found that the magnitude of the polarization, P, decreases monotonically with fluence between 5.4 and 497 J/cm2. They also found that P is greater for an s-polarized laser than for p-polarization. With these differences in mind, they showed that the various ns studies are mostly con ...
... studies of Al and found that the magnitude of the polarization, P, decreases monotonically with fluence between 5.4 and 497 J/cm2. They also found that P is greater for an s-polarized laser than for p-polarization. With these differences in mind, they showed that the various ns studies are mostly con ...
Variational Phase Imaging Using the Transport-of
... TIE reconstructions are spectrally weighted by using Gaussian filters. The authors have designed spectral weighting coefficients that minimize the pointwise variance in the frequency domain in [21]. In [22], multiple spectral bands are combined via the Savitzky-Golay differentiation filter. Similarl ...
... TIE reconstructions are spectrally weighted by using Gaussian filters. The authors have designed spectral weighting coefficients that minimize the pointwise variance in the frequency domain in [21]. In [22], multiple spectral bands are combined via the Savitzky-Golay differentiation filter. Similarl ...
Correlated diffraction and fluorescence in the backscattering
... where m is a positive or negative integer. This formula is written under the assumption that the grating makes an angle ␣ with the horizontal in the measuring 共wing兲 coordinates 共see Fig. 7兲. The implantation angle ␣ is, on the average, found close to 8° for the Troides magellanus yellow scales. The ...
... where m is a positive or negative integer. This formula is written under the assumption that the grating makes an angle ␣ with the horizontal in the measuring 共wing兲 coordinates 共see Fig. 7兲. The implantation angle ␣ is, on the average, found close to 8° for the Troides magellanus yellow scales. The ...
Prism, Prism, Prism!
... 2. Understand spatial perception changes caused by viewing through prism 3. Learn about therapy techniques that utilize prisms Compensatory – reduces work, moves the image to where the eye sees Therapeutic – increases work, moves the image to where we want the eyes to look Therapeutic prism is used ...
... 2. Understand spatial perception changes caused by viewing through prism 3. Learn about therapy techniques that utilize prisms Compensatory – reduces work, moves the image to where the eye sees Therapeutic – increases work, moves the image to where we want the eyes to look Therapeutic prism is used ...
Interface Reaction between a Metal Mirror Layer and a Dielectric
... 2. 1 Materials for the new thin film multilayered systems Starting from a WO 3 /Al system, various combinations of transparent oxide / metal have been examined. However, recording sensitivity could not be sufficiently lowered, the details of which will be described elsewhere. As for sulfide, transpa ...
... 2. 1 Materials for the new thin film multilayered systems Starting from a WO 3 /Al system, various combinations of transparent oxide / metal have been examined. However, recording sensitivity could not be sufficiently lowered, the details of which will be described elsewhere. As for sulfide, transpa ...
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.