Optical Caustics Observed in Light Scattered by an Oblate Spheroid
... With this choice of central ray, the smaller impact parameter supernumerary rainbow ray with ε < 0 crosses the exit plane [33] at a negative value of w and has a longer path length, while the larger impact parameter supernumerary ray with ε > 0 crosses the exit plane at a positive value of w and has ...
... With this choice of central ray, the smaller impact parameter supernumerary rainbow ray with ε < 0 crosses the exit plane [33] at a negative value of w and has a longer path length, while the larger impact parameter supernumerary ray with ε > 0 crosses the exit plane at a positive value of w and has ...
Tuning Dynamic Range and Sensitivity of White
... probability of absorbance. Second, the reflectance dips are rather broad compared to prism-based white-light refractometers. This is caused by the multimode nature of the fiber; photons traveling down the fiber will interact with the sensing surface with a distribution of angles equal to the accepta ...
... probability of absorbance. Second, the reflectance dips are rather broad compared to prism-based white-light refractometers. This is caused by the multimode nature of the fiber; photons traveling down the fiber will interact with the sensing surface with a distribution of angles equal to the accepta ...
A pulsed dye laser for photo-ionization of magnesium atoms
... Brewster angle together with an anti-re ection coated highly birefringent crystal (like in [11]). This ensures minimum surface losses. We can think of a prism followed by a broadband feedback mirror as equivalent to a mirror with a frequency-selective coating. In the same way, a series of prisms arr ...
... Brewster angle together with an anti-re ection coated highly birefringent crystal (like in [11]). This ensures minimum surface losses. We can think of a prism followed by a broadband feedback mirror as equivalent to a mirror with a frequency-selective coating. In the same way, a series of prisms arr ...
The Optics of the Mach-Zehnder Interferometer
... adjustment giving what is described in the present report as a linear source-plane path variation. He shows that with horizontal fringes there is a limit to the permissible source size even with the best adjustment. His paper, and t h a t of Schardin, suggest wrongly t h a t only the semi-reflectin ...
... adjustment giving what is described in the present report as a linear source-plane path variation. He shows that with horizontal fringes there is a limit to the permissible source size even with the best adjustment. His paper, and t h a t of Schardin, suggest wrongly t h a t only the semi-reflectin ...
Patterned dielectric membranes designed for optical sensing
... It seems most common among PhD students writing their dissertation to start this section by thanking their supervisors. However, my impression is that there are no clear guidelines concerning the form of the Acknowledgements section that force me to follow this trend. I have therefore chosen to devi ...
... It seems most common among PhD students writing their dissertation to start this section by thanking their supervisors. However, my impression is that there are no clear guidelines concerning the form of the Acknowledgements section that force me to follow this trend. I have therefore chosen to devi ...
Optical phase conjugation: principles, techniques, and applications
... Over the last three decades, optical phase conjugation (OPC) has been one of the major research subjects in the field of nonlinear optics and quantum electronics. OPC defines usually a special relationship between two coherent optical beams propagating in opposite directions with reversed wave front a ...
... Over the last three decades, optical phase conjugation (OPC) has been one of the major research subjects in the field of nonlinear optics and quantum electronics. OPC defines usually a special relationship between two coherent optical beams propagating in opposite directions with reversed wave front a ...
Boundless Study Slides
... • contrast A difference in lightness, brightness and/or hue between two colors that makes them more or less distinguishable • destructive interference Occurs when waves interfere with each other crest to trough (peak to valley) and are exactly out of phase with each other. • diffraction The bending ...
... • contrast A difference in lightness, brightness and/or hue between two colors that makes them more or less distinguishable • destructive interference Occurs when waves interfere with each other crest to trough (peak to valley) and are exactly out of phase with each other. • diffraction The bending ...
Coherent x-rays: overview
... – Provide (at the same website) EndNote files of citations for the book list and other references • Later in this session I will give some information about the other talks of the series • This is meant to be informal so please raise questions or comments at any time ESRF Lecture Series on Coherent ...
... – Provide (at the same website) EndNote files of citations for the book list and other references • Later in this session I will give some information about the other talks of the series • This is meant to be informal so please raise questions or comments at any time ESRF Lecture Series on Coherent ...
Waves and Radiation
... use the above relationships in different contexts including sound waves and electromagnetic waves Light and sound ...
... use the above relationships in different contexts including sound waves and electromagnetic waves Light and sound ...
Wavelength Converter Technology
... wavelength switching and routing have been reported, e.g. [1]–[3]. Although the work on WDM network architectures is in the initial phase, it seems that for full flexibility it is very attractive to be able to translate the channel wavelengths in an easy way [4], [5]. This is motivated by the result ...
... wavelength switching and routing have been reported, e.g. [1]–[3]. Although the work on WDM network architectures is in the initial phase, it seems that for full flexibility it is very attractive to be able to translate the channel wavelengths in an easy way [4], [5]. This is motivated by the result ...
Holographic Fabrication of Designed Functional Defect Lines in
... simultaneous patterning of PhCs template in photoresist [8–17]. The use of single-optical elements, including phase masks [10–14], prisms [15], and reflective optical elements [17,18], has significantly reduced the complexity of the optical setup for laser holographic lithography. Holographic lithog ...
... simultaneous patterning of PhCs template in photoresist [8–17]. The use of single-optical elements, including phase masks [10–14], prisms [15], and reflective optical elements [17,18], has significantly reduced the complexity of the optical setup for laser holographic lithography. Holographic lithog ...
The Fresnel Coefficients - The Society of Vacuum Coaters
... lighthouse service. By early 1827 he could do no more and he passed away on the 14th July that year. Fresnel’s great optical work, then, occupied only a decade, from around 1813, till 1823, a good part of which was devoted to his civil engineering career. The word impressive falls far short in descr ...
... lighthouse service. By early 1827 he could do no more and he passed away on the 14th July that year. Fresnel’s great optical work, then, occupied only a decade, from around 1813, till 1823, a good part of which was devoted to his civil engineering career. The word impressive falls far short in descr ...
Recent Advances in High-Birefringence Fiber Loop Mirror Sensors
... [19]. In this type of fiber the internal birefringence is created by the GE. Applications combining the Hi-Bi PCF with the FLMs have been also presented, for instance, a Sagnac loop interferometer based on polarization maintaining photonic crystal fiber with temperature insensitivity [20, 21]. Yang ...
... [19]. In this type of fiber the internal birefringence is created by the GE. Applications combining the Hi-Bi PCF with the FLMs have been also presented, for instance, a Sagnac loop interferometer based on polarization maintaining photonic crystal fiber with temperature insensitivity [20, 21]. Yang ...
Optical Properties of Nanostructures
... emission frequency. [9] In the same year, John independently suggested that a threedimensional dielectric superlattice array could induce strong localization of photons. [10] ...
... emission frequency. [9] In the same year, John independently suggested that a threedimensional dielectric superlattice array could induce strong localization of photons. [10] ...
Physical Optics
... optics a branch of optics that deals with the description and explanation of all optical phenomena in terms of physical theories as, physical optics article about physical optics by the - physical optics the study of the interaction of electromagnetic waves in the optical range with material systems ...
... optics a branch of optics that deals with the description and explanation of all optical phenomena in terms of physical theories as, physical optics article about physical optics by the - physical optics the study of the interaction of electromagnetic waves in the optical range with material systems ...
Applications of spatial light modulators for optical trapping and
... light field. This phenomenon could be explained by an asymmetric, prism-like particle shape, an asymmetric radial intensity profile of the projected light field, and the particle confinement in the air-liquid interface (Jesacher et al., 2006c). Generally, the forces on microparticles emerging in opt ...
... light field. This phenomenon could be explained by an asymmetric, prism-like particle shape, an asymmetric radial intensity profile of the projected light field, and the particle confinement in the air-liquid interface (Jesacher et al., 2006c). Generally, the forces on microparticles emerging in opt ...
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS (G02F takes
... measuring-instruments, see the relevant subclass of G01, e.g. optical rangefinders G01C; testing of optical elements, systems, or apparatus G01M 11/00; spectacles G02C; sound lenses G10K 11/30; electron and ion "optics" H01J; X-ray "optics" H01J, H05G 1/00; optical elements structurally combined wit ...
... measuring-instruments, see the relevant subclass of G01, e.g. optical rangefinders G01C; testing of optical elements, systems, or apparatus G01M 11/00; spectacles G02C; sound lenses G10K 11/30; electron and ion "optics" H01J; X-ray "optics" H01J, H05G 1/00; optical elements structurally combined wit ...
Reference Guide to Fiber Optic Testing Glossary Reference Guide to Fib
... A very accurate color filter used to selectively pass light of a small range of wavelengths, whereas other ones are reflected. Used in wavelength division multiplexers (WDM). ...
... A very accurate color filter used to selectively pass light of a small range of wavelengths, whereas other ones are reflected. Used in wavelength division multiplexers (WDM). ...
Orbital angular momentum: origins
... the two modes were frequency degenerate and hence whether the handedness of the helical phase fronts was maintained over time or not. In 1988, Tamm considered a HeNe laser where the careful positioning of an intracavity absorber could encourage the two modes to frequency lock such that they combined ...
... the two modes were frequency degenerate and hence whether the handedness of the helical phase fronts was maintained over time or not. In 1988, Tamm considered a HeNe laser where the careful positioning of an intracavity absorber could encourage the two modes to frequency lock such that they combined ...
Achromatic correction of diffractive dispersion in white light SLM
... the LC material. As will be shown later, the material LC dispersion is not significant in comparison with the diffractive dispersion. The dispersion associated with the diffraction effects becomes apparent when the spectral component with the wavelength λ is phase modulated and monitored during free ...
... the LC material. As will be shown later, the material LC dispersion is not significant in comparison with the diffractive dispersion. The dispersion associated with the diffraction effects becomes apparent when the spectral component with the wavelength λ is phase modulated and monitored during free ...
Stabler, Graham (2005) High resolution wide field surface plasmon
... The key problems with sensing and characterizing thin films optically, is the fact that they are thin[2]. This means that the optical path of light passing through the material is very short and the materials effect on the amplitude and phase of the light, small. This is especially so for the case o ...
... The key problems with sensing and characterizing thin films optically, is the fact that they are thin[2]. This means that the optical path of light passing through the material is very short and the materials effect on the amplitude and phase of the light, small. This is especially so for the case o ...
- sfo
... current modulated laser, the transmission distance over a standard optical fiber is limited by the chromatic dispersion (17 ps.nm−1 .km−1 positive dispersion around 1550 nm wavelength). The optical frequency chirp in a current modulated laser is induced by the refractive index modulation which is du ...
... current modulated laser, the transmission distance over a standard optical fiber is limited by the chromatic dispersion (17 ps.nm−1 .km−1 positive dispersion around 1550 nm wavelength). The optical frequency chirp in a current modulated laser is induced by the refractive index modulation which is du ...
Full-angle Negative Reflection with An Ultrathin Acoustic
... acoustic energy coupling into and out of the metasurface slab respectively. Once the parameter distribution of the metasurface slab is known, the field inside the metasurface can be solved based on equation (3) and the Floquet-Bloch boundary condition at the two sides of one supercell[37-39]. Here w ...
... acoustic energy coupling into and out of the metasurface slab respectively. Once the parameter distribution of the metasurface slab is known, the field inside the metasurface can be solved based on equation (3) and the Floquet-Bloch boundary condition at the two sides of one supercell[37-39]. Here w ...
Extreme pulse-front tilt from an etalon
... [15]. By the above Fourier-transform result, the huge angular dispersion of etalons implies that their output pulse front must be very tilted—by as much as 100 times that due to a diffraction grating. Indeed, that can be seen by simple light-travel-time considerations: the part of the pulse that mak ...
... [15]. By the above Fourier-transform result, the huge angular dispersion of etalons implies that their output pulse front must be very tilted—by as much as 100 times that due to a diffraction grating. Indeed, that can be seen by simple light-travel-time considerations: the part of the pulse that mak ...
The effect of gamma radiation on fibre Bragg
... French physicist Paul Villard is credited with discovering gamma rays in 1900. Gamma rays are a form of electromagnetic radiation. He recognized they were different than x-rays in that they had a much larger penetrating depth also they were not affected by electrical or magnetic fields. The major di ...
... French physicist Paul Villard is credited with discovering gamma rays in 1900. Gamma rays are a form of electromagnetic radiation. He recognized they were different than x-rays in that they had a much larger penetrating depth also they were not affected by electrical or magnetic fields. The major di ...
Diffraction grating
In optics, a diffraction grating is an optical component with a periodic structure, which splits and diffracts light into several beams travelling in different directions. The emerging coloration is a form of structural coloration. The directions of these beams depend on the spacing of the grating and the wavelength of the light so that the grating acts as the dispersive element. Because of this, gratings are commonly used in monochromators and spectrometers.For practical applications, gratings generally have ridges or rulings on their surface rather than dark lines. Such gratings can be either transmissive or reflective. Gratings which modulate the phase rather than the amplitude of the incident light are also produced, frequently using holography.The principles of diffraction gratings were discovered by James Gregory, about a year after Newton's prism experiments, initially with items such as bird feathers. The first man-made diffraction grating was made around 1785 by Philadelphia inventor David Rittenhouse, who strung hairs between two finely threaded screws. This was similar to notable German physicist Joseph von Fraunhofer's wire diffraction grating in 1821.Diffraction can create ""rainbow"" colors when illuminated by a wide spectrum (e.g., continuous) light source. The sparkling effects from the closely spaced narrow tracks on optical storage disks such as CD's or DVDs are an example, while the similar rainbow effects caused by thin layers of oil (or gasoline, etc.) on water are not caused by a grating, but rather by interference effects in reflections from the closely spaced transmissive layers (see Examples, below). A grating has parallel lines, while a CD has a spiral of finely-spaced data tracks. Diffraction colors also appear when one looks at a bright point source through a translucent fine-pitch umbrella-fabric covering. Decorative patterned plastic films based on reflective grating patches are very inexpensive, and are commonplace.