Analysis And Design Of Wide-angle Foveated Optical
... Figure 5: The SLM corrects the wavefront aberration at the field point of interest. ........ 13 Figure 6: Real-time wavefront correction in adaptive optics............................................ 15 Figure 7: Example of foveated images [14]...................................................... ...
... Figure 5: The SLM corrects the wavefront aberration at the field point of interest. ........ 13 Figure 6: Real-time wavefront correction in adaptive optics............................................ 15 Figure 7: Example of foveated images [14]...................................................... ...
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... the Manley-Rowe limit[19]. For DFG of two narrow band light fields, possibility of achieving high conversion efficiency using cascaded DFG processes has been analyzed[23, 24]. To investigate the effects of cascading, we conducted numerical simulations using coupled equations of propagation of the pu ...
... the Manley-Rowe limit[19]. For DFG of two narrow band light fields, possibility of achieving high conversion efficiency using cascaded DFG processes has been analyzed[23, 24]. To investigate the effects of cascading, we conducted numerical simulations using coupled equations of propagation of the pu ...
Spherical aberration compensation plates
... work with specific conjugates. Given an object distance relative to the lens, there is one unique image distance for paraxial rays. These two distances are said to be conjugate to one another. A convex plano lens (K=1) is optimum for a collimated input, where the point object is located at infinity an ...
... work with specific conjugates. Given an object distance relative to the lens, there is one unique image distance for paraxial rays. These two distances are said to be conjugate to one another. A convex plano lens (K=1) is optimum for a collimated input, where the point object is located at infinity an ...
Sensitivity of Cirrus Bidirectional Reflectance to Vertical
... the radiative properties of a cirrus cloud may be represented by those associated with a specific ice crystal shape (or habit) and a single particle size distribution. However, observations of cirrus clouds have shown that the shapes and sizes of ice crystals may vary substantially with height withi ...
... the radiative properties of a cirrus cloud may be represented by those associated with a specific ice crystal shape (or habit) and a single particle size distribution. However, observations of cirrus clouds have shown that the shapes and sizes of ice crystals may vary substantially with height withi ...
Assessment of optical systems by means of point
... It was mentioned above that the assessment of the quality of a highly specified optical system has to be done in the wavefront domain down to a fraction of the wavelength of the light. Interferometric methods are mostly used for this purpose. Although the achievable precision is very high, these met ...
... It was mentioned above that the assessment of the quality of a highly specified optical system has to be done in the wavefront domain down to a fraction of the wavelength of the light. Interferometric methods are mostly used for this purpose. Although the achievable precision is very high, these met ...
Thursday, May 10, 2007
... Dept. Applied Physics, Germany. We demonstrate wavelength conversion of 160Gbit/ s DPSK and 320Gbit/s DQPSK data signals by cascaded second-harmonic and difference frequency generation in a periodically poled LiNbO3 waveguide. Error free operation with negligible penalty is obtained. ...
... Dept. Applied Physics, Germany. We demonstrate wavelength conversion of 160Gbit/ s DPSK and 320Gbit/s DQPSK data signals by cascaded second-harmonic and difference frequency generation in a periodically poled LiNbO3 waveguide. Error free operation with negligible penalty is obtained. ...
Development of a process for characterization of Nd:YAG crystals
... of laser beam characteristics from a single cavity laser and to establish a preliminary guideline that would determine which crystals were acceptable for use in production of laser devices. These objectives were achieved by developing the experimental procedures and by statistical analysis of the da ...
... of laser beam characteristics from a single cavity laser and to establish a preliminary guideline that would determine which crystals were acceptable for use in production of laser devices. These objectives were achieved by developing the experimental procedures and by statistical analysis of the da ...
Notes on optical fibres and fibre bundles
... This note has been prepared with the intention of putting of summarising salient facts about optical fibres. Of course the selection of the characteristics presented is inevitably limited and biased. Limited since there are numerous textbooks and websites which are available for more detailed explan ...
... This note has been prepared with the intention of putting of summarising salient facts about optical fibres. Of course the selection of the characteristics presented is inevitably limited and biased. Limited since there are numerous textbooks and websites which are available for more detailed explan ...
The Graduate School Eberly College of Science
... laser fibers to a diameter of 400 μm on the gain crystal itself. . . . . This home built mount is used to hold the lens mount shown in figure 5.10. By doing so, it allows the lenses used for imaging the pump laser light onto the gain crystal to be precisely positioned via a translation stage connected ...
... laser fibers to a diameter of 400 μm on the gain crystal itself. . . . . This home built mount is used to hold the lens mount shown in figure 5.10. By doing so, it allows the lenses used for imaging the pump laser light onto the gain crystal to be precisely positioned via a translation stage connected ...
Metastable noble gas atoms in strong
... light passing through the material and the electric dipoles in a material, whether they are permanent or induced. This in turn has effects on the propagation of the light. Each order of χ above the first order introduces different nonlinear effects, but the key concept here is that the nonlinear pro ...
... light passing through the material and the electric dipoles in a material, whether they are permanent or induced. This in turn has effects on the propagation of the light. Each order of χ above the first order introduces different nonlinear effects, but the key concept here is that the nonlinear pro ...
electromagnetically induced transparency - IAP TU
... To explain the basic idea and applications of EIT, an equivalent picture to interfering transition pathways is provided by the concept of laser-dressed states. In terms of quantum mechanics, the dressed states are the eigenstates of the quantum system, including strong interaction with driving radia ...
... To explain the basic idea and applications of EIT, an equivalent picture to interfering transition pathways is provided by the concept of laser-dressed states. In terms of quantum mechanics, the dressed states are the eigenstates of the quantum system, including strong interaction with driving radia ...
plasmonics: fundamentals and applications
... high-resolution microscopy, drug design and many more. Applications are indeed strong motivators, but I think there is more to it than that. I know I am biased, but for me and I suspect many others it’s the adventure, the role of the imagination, the wish to be the one to find something new, to expl ...
... high-resolution microscopy, drug design and many more. Applications are indeed strong motivators, but I think there is more to it than that. I know I am biased, but for me and I suspect many others it’s the adventure, the role of the imagination, the wish to be the one to find something new, to expl ...
Quadratic solitons: recent developments
... quadratic solitons in many physical configurations, opening the door to the detailed experimental exploration of their properties and features. For example, when quadratic solitons are excited with only one of the participating wavelengths input into the crystal, the inputs adjust themselves by shed ...
... quadratic solitons in many physical configurations, opening the door to the detailed experimental exploration of their properties and features. For example, when quadratic solitons are excited with only one of the participating wavelengths input into the crystal, the inputs adjust themselves by shed ...
Plasmonics: Fundamentals and Applications
... high-resolution microscopy, drug design and many more. Applications are indeed strong motivators, but I think there is more to it than that. I know I am biased, but for me and I suspect many others it’s the adventure, the role of the imagination, the wish to be the one to find something new, to expl ...
... high-resolution microscopy, drug design and many more. Applications are indeed strong motivators, but I think there is more to it than that. I know I am biased, but for me and I suspect many others it’s the adventure, the role of the imagination, the wish to be the one to find something new, to expl ...
Ultrashort free-carrier lifetime in low-loss silicon
... and lasers,” Appl. Phys. Lett. 87(26), 261108 (2005). ...
... and lasers,” Appl. Phys. Lett. 87(26), 261108 (2005). ...
light sources for optical fibers
... or single-mode fibers. Earlier, it was noted that light rays could be deflected by variations in the refractive index of a medium as well as by encountering an abrupt interface between two indices. There are a number of methods of creating controlled index gradients. Some involve introducing impurit ...
... or single-mode fibers. Earlier, it was noted that light rays could be deflected by variations in the refractive index of a medium as well as by encountering an abrupt interface between two indices. There are a number of methods of creating controlled index gradients. Some involve introducing impurit ...
Fabrication of submicrometer 3D structures by one
... absorption (LOPA) mechanism of photosensitive materials for fabrication of arbitrary two- and three-dimensional (2D, 3D) submicrometer structures. First, we theoretically investigated the intensity distribution at focusing region of a high numerical aperture objective lens as a function of various w ...
... absorption (LOPA) mechanism of photosensitive materials for fabrication of arbitrary two- and three-dimensional (2D, 3D) submicrometer structures. First, we theoretically investigated the intensity distribution at focusing region of a high numerical aperture objective lens as a function of various w ...
Optical aberrations of intraocular lenses measured in vivo and in vitro
... We used a realignment algorithm to ensure proper registration of the total-aberration map (measured with respect to the line of sight) and the corneal-aberration map (measured with respect to the videokeratographer).23–25 Internal aberrations were calculated by subtracting corneal aberrations from t ...
... We used a realignment algorithm to ensure proper registration of the total-aberration map (measured with respect to the line of sight) and the corneal-aberration map (measured with respect to the videokeratographer).23–25 Internal aberrations were calculated by subtracting corneal aberrations from t ...
A minimally invasive in-fibre Bragg grating sensor
... than gratings in non-birefringent fibres because they are typically constructed with stress ...
... than gratings in non-birefringent fibres because they are typically constructed with stress ...
Concentration effect of carbon nanotube based saturable
... Passively mode-locked erbium-doped fiber laser (MLEDFL) enables to generate optical pulses in picosecond and femtosecond regimes [1,2] and is often initiated by nonlinear optical elements with intensity-dependent response to favor optical pulsation over continuous–wave lasing [3]. The optical nonlin ...
... Passively mode-locked erbium-doped fiber laser (MLEDFL) enables to generate optical pulses in picosecond and femtosecond regimes [1,2] and is often initiated by nonlinear optical elements with intensity-dependent response to favor optical pulsation over continuous–wave lasing [3]. The optical nonlin ...
Microscopy - Frank`s Hospital Workshop
... Vertico SMI - SPDMphymod Superresolution Microscopy Localization Microscopy/Spatially Structured Illumination Around 1995, Christoph Cremer commenced with the development of a light microscopic process, which achieved a substantially improved size resolution of cellular nanostructures stained with a ...
... Vertico SMI - SPDMphymod Superresolution Microscopy Localization Microscopy/Spatially Structured Illumination Around 1995, Christoph Cremer commenced with the development of a light microscopic process, which achieved a substantially improved size resolution of cellular nanostructures stained with a ...
Optical tweezers
Optical tweezers (originally called ""single-beam gradient force trap"") are scientific instruments that use a highly focused laser beam to provide an attractive or repulsive force (typically on the order of piconewtons), depending on the refractive index mismatch to physically hold and move microscopic dielectric objects similar to tweezers. Optical tweezers have been particularly successful in studying a variety of biological systems in recent years.