Modeling of Lithium Niobate Ridge Waveguides - Rays
... Waveguides are used in order to guide electromagnetic waves and an example of a waveguide is optical fibers. Problems arise with waveguides when propagation losses are induced, and the aim of this study is to model optical guidance, field profiles and effective indices in ridge type waveguides and p ...
... Waveguides are used in order to guide electromagnetic waves and an example of a waveguide is optical fibers. Problems arise with waveguides when propagation losses are induced, and the aim of this study is to model optical guidance, field profiles and effective indices in ridge type waveguides and p ...
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... much lower frequencies (microwave frequency range), using an optical frequency comb featuring a mode spacing of few hundreds of MHz, has been demonstrated, but unfortunately, it remains at this date exclusively a laboratory technology. A novel method to generate ultra-pure microwaves is based on usi ...
... much lower frequencies (microwave frequency range), using an optical frequency comb featuring a mode spacing of few hundreds of MHz, has been demonstrated, but unfortunately, it remains at this date exclusively a laboratory technology. A novel method to generate ultra-pure microwaves is based on usi ...
Optimization of axial resolution in a confocal microscope with
... with D-shaped apertures exhibits a poorer axial resolution than in the conventional confocal microscope with circular apertures, the behavior is different with a finite-sized detector. It is of practical significance that for a given finite-sized detector there is an optimum configuration (value of ...
... with D-shaped apertures exhibits a poorer axial resolution than in the conventional confocal microscope with circular apertures, the behavior is different with a finite-sized detector. It is of practical significance that for a given finite-sized detector there is an optimum configuration (value of ...
Fabrication of functional surfaces using ultrashort laser pulse ablation
... with replication methods. It is well known that sufficiently small surface structures reflect and deflect light in a way that can not be handled with geometrical optics. Naturally, when considering materials like metals, only reflected waves are observed. If the periodicity of the structures is in t ...
... with replication methods. It is well known that sufficiently small surface structures reflect and deflect light in a way that can not be handled with geometrical optics. Naturally, when considering materials like metals, only reflected waves are observed. If the periodicity of the structures is in t ...
Fine Structure Constant Defines Visual Transparency of Graphene
... optical microscope is possible for graphene membranes because they mostly absorb light with only a minute portion of it being reflected (<0.1%). The latter ensures that the opacity of graphene is practically independent of the numerical aperture and magnification (this was carefully checked experime ...
... optical microscope is possible for graphene membranes because they mostly absorb light with only a minute portion of it being reflected (<0.1%). The latter ensures that the opacity of graphene is practically independent of the numerical aperture and magnification (this was carefully checked experime ...
ABSTRACT Title of Document:
... atmosphere is heated [12]. The molecules are characterized by their index of refraction. An important quantity for absorption and scattering is the extinction coefficient, α. The imaginary part of the index of refraction, k, is related to the extinction coefficient by the following: α= ...
... atmosphere is heated [12]. The molecules are characterized by their index of refraction. An important quantity for absorption and scattering is the extinction coefficient, α. The imaginary part of the index of refraction, k, is related to the extinction coefficient by the following: α= ...
Modeling and simulation of surface profile forming process of
... focal length often requires syringe pump and pressure sensor connected to the microlenses. It adds the complexity of the device, especially for array structure. In addition, they are normally fabricated piece by piece, not very suitable for batch fabrication. UV lithography of SU-8 has been widely u ...
... focal length often requires syringe pump and pressure sensor connected to the microlenses. It adds the complexity of the device, especially for array structure. In addition, they are normally fabricated piece by piece, not very suitable for batch fabrication. UV lithography of SU-8 has been widely u ...
P approximation for reflectance imaging with an oblique beam of arbitrary profile 1
... stochastic processes of absorption and scattering. These processes are characterized by the probability distribution functions based on the RT theory and therefore the obtained results provide equivalent solutions. The MC method has been used extensively to solve tissue optics problems with homogene ...
... stochastic processes of absorption and scattering. These processes are characterized by the probability distribution functions based on the RT theory and therefore the obtained results provide equivalent solutions. The MC method has been used extensively to solve tissue optics problems with homogene ...
Development of a high precision interferometric set-up for the
... L = Scan length of WLI from its balance point ...
... L = Scan length of WLI from its balance point ...
gaussian beam optics
... to the theoretical TEM00 mode. Coherent Gaussian beams have peculiar transformation properties which require special consideration. In order to select the best optics for a particular laser application, it is important to understand the basic properties of Gaussian beams. Unfortunately, the output f ...
... to the theoretical TEM00 mode. Coherent Gaussian beams have peculiar transformation properties which require special consideration. In order to select the best optics for a particular laser application, it is important to understand the basic properties of Gaussian beams. Unfortunately, the output f ...
V.90-3-James H. Cole, Clay Kirkendall, Anthony Dandridge, Gary
... approximation assumes that all layers of a composite, multi-layer fiber move together in a single plane when under stress. The plane strain approximation has been shown to be in good agreement with an exact calculation of the axial strain for multi-layer structures10. Using the boundary conditions d ...
... approximation assumes that all layers of a composite, multi-layer fiber move together in a single plane when under stress. The plane strain approximation has been shown to be in good agreement with an exact calculation of the axial strain for multi-layer structures10. Using the boundary conditions d ...
Influence of polarization direction, incidence angle, and geometry on
... Figure 3 shows contour plots of the near field enhancement distributions in TGNWs. The incidence angles are (a) 90◦ , (b) 30◦ , (c) 20◦ , and (d) 10◦ . The calculation wavelengths correspond to the dipole plasmon resonances of TGNWs. For the different incidence angles, the large electrical field outsid ...
... Figure 3 shows contour plots of the near field enhancement distributions in TGNWs. The incidence angles are (a) 90◦ , (b) 30◦ , (c) 20◦ , and (d) 10◦ . The calculation wavelengths correspond to the dipole plasmon resonances of TGNWs. For the different incidence angles, the large electrical field outsid ...
An Optical Fiber Lateral Displacement Measurement Method and
... The signal processing methods adopted in the measurement system are similar to that used for traditional grating signals [34], such as counting, subdivision, and discerning direction. 2.2. Preliminary Theoretical Derivation The fiber-grating distance ZFG between the fiber end and the RGP has influen ...
... The signal processing methods adopted in the measurement system are similar to that used for traditional grating signals [34], such as counting, subdivision, and discerning direction. 2.2. Preliminary Theoretical Derivation The fiber-grating distance ZFG between the fiber end and the RGP has influen ...
Spectroscopy – I. Gratings and Prisms
... If we could see the whole spectrum (radio to γ–ray), then every order would completely overlap with every other order. In reality, of course, many effects limit what we can see/measure. For example, the atmosphere will eliminate most photons at shorter wavelengths than about 340nm – as well as large ...
... If we could see the whole spectrum (radio to γ–ray), then every order would completely overlap with every other order. In reality, of course, many effects limit what we can see/measure. For example, the atmosphere will eliminate most photons at shorter wavelengths than about 340nm – as well as large ...
Light amplificated by stimulated emission of radiation
... Depending on the geometry, there can be more or less stringent requirements on the pump beam quality. This applies mostly to end-pumped lasers. In some cases, the polarization state of the pump light is also important. Some nonisotropic gain media, such as Nd:YVO4, exhibit very different levels of a ...
... Depending on the geometry, there can be more or less stringent requirements on the pump beam quality. This applies mostly to end-pumped lasers. In some cases, the polarization state of the pump light is also important. Some nonisotropic gain media, such as Nd:YVO4, exhibit very different levels of a ...
IOSR Journal of Applied Physics (IOSR-JAP) e-ISSN: 2278-4861.
... width W = 500 nm and height h = 260 nm) with a silica substrate (blue region). The distance between the holes of the mirrors is a = 375 nm and the radius of the holes is r = 0.28a. The radii of the holes in the tapers are 0.24a, 0.22a and 0.19a, respectively. The diameter and the height of the gold ...
... width W = 500 nm and height h = 260 nm) with a silica substrate (blue region). The distance between the holes of the mirrors is a = 375 nm and the radius of the holes is r = 0.28a. The radii of the holes in the tapers are 0.24a, 0.22a and 0.19a, respectively. The diameter and the height of the gold ...
Binocular Performance Index
... only a few stars, generally on the order of only 1 to 3 stars more. About 80%+ of all the additional stars beyond what the 10x50s could see were viewed with the apertures masked at 50mm, indicating it is magnification and the accompanying affects of exit pupil and not aperture that is responsible fo ...
... only a few stars, generally on the order of only 1 to 3 stars more. About 80%+ of all the additional stars beyond what the 10x50s could see were viewed with the apertures masked at 50mm, indicating it is magnification and the accompanying affects of exit pupil and not aperture that is responsible fo ...
McIntyre, Stuart (2013) Limitations to light microscope resolution in
... Fluorescence imaging has become a vital tool for understanding cardiac cell function. With the advent of calcium-sensitive and fast response voltage-sensitive dyes, it is now possible to gain complex physiological recordings from various cardiac muscle preparations, while simultaneously optically se ...
... Fluorescence imaging has become a vital tool for understanding cardiac cell function. With the advent of calcium-sensitive and fast response voltage-sensitive dyes, it is now possible to gain complex physiological recordings from various cardiac muscle preparations, while simultaneously optically se ...
Stabler, Graham (2005) High resolution wide field surface plasmon
... the minima in reflection co-efficient in an imaging configuration. More generally it can be described as any imaging formation process that utilizes the excitation of SPs in order to gain contrast. This may use the amplitude dip, the phase shift or a mixture of the two. The ability to produce images ...
... the minima in reflection co-efficient in an imaging configuration. More generally it can be described as any imaging formation process that utilizes the excitation of SPs in order to gain contrast. This may use the amplitude dip, the phase shift or a mixture of the two. The ability to produce images ...