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Acoustic spectra characteristics of atmospheric pressure plasma
Acoustic spectra characteristics of atmospheric pressure plasma

... course, the processing of the frequency-independency of output signal is possible by the electric circuit or computer software if necessary. ...
THE VARIATION O F .THE STRESS OPTICAL COEFFICIENT WITH
THE VARIATION O F .THE STRESS OPTICAL COEFFICIENT WITH

Review !x
Review !x

... ! We have coherent light incident from the left and a source of spherical wavelets at the center of each slit ! We see that the gray dashed lines represent lines along which there is constructive interference April 8, 2005 ...
OM1 - Faculty of Engineering
OM1 - Faculty of Engineering

Reflection and critical angle
Reflection and critical angle

... September 27, 2010 ...
Biomedical Imaging and Applied Optics Laboratory
Biomedical Imaging and Applied Optics Laboratory

Optical spectroscopy techniques
Optical spectroscopy techniques

www.phlam.univ
www.phlam.univ

... Regardless of pulse distortion due to spectral and gain saturation of the amplifier, the pulse was compressed after amplification, indicating that the pulse remains linearly chirped. The pulsewidth of the amplified compressed pulses was measured using a streak camera. Fig. 4 shows a streak camera tr ...
UNIVERSITAT POLITÈCNICA DE CATALUNYA
UNIVERSITAT POLITÈCNICA DE CATALUNYA

Manual for Diode Laser Spectroscopy
Manual for Diode Laser Spectroscopy

Week 10 (4/20/2006)
Week 10 (4/20/2006)

... Brightness Constancy The Aperture problem Regularization Lucas-Kanade Coarse-to-fine Parametric motion models Direct depth SSD tracking Robust flow Textured motion ...
Orbital angular momentum of light
Orbital angular momentum of light

... Gaussian beam, two Laguerre-Gaussian beams of higher order with opposite phases. This is a direct consequence of the conservation of angular momentum. Since a Gaussian beam has ` = 0, two LaguerreGaussian beams must be created with opposite `. These two beams travel at an angle with respect to the o ...
Time Domain Simulation of Optical MIMO Channels
Time Domain Simulation of Optical MIMO Channels

... particular. By using fusion or other couplers it is possible to realize a MIMO transmission system over multi-mode fibers (MMFs) as shown in [1, 2]. For a rigorous performance assessment of an optical MIMO system a model simulating the respective impulse responses is essential. However, such a model ...
Full text - Ward Ober Lab
Full text - Ward Ober Lab

... Recent technological advances have rendered widefield fluorescence microscopy as an invaluable tool to image fast dynamics of trafficking events in two dimensions (i.e., in the plane of focus). Three-dimensional trafficking events are studied by sequentially imaging different planes within the specimen by ...
Development of a New Optical Wavelength Rejection Filter
Development of a New Optical Wavelength Rejection Filter

... Typically the throughput is less than 10% for a double monochromator, even close to the grating blaze, and the throughput decreases to less than 3 % for a triple monochromator. In this report, we demonstrate the existence of a new tunable optical filter which is highly efficient and which can replac ...
Phys. Rev. Lett. 102, 223901 (2009)
Phys. Rev. Lett. 102, 223901 (2009)

Ultrafast adaptive optical near-field control
Ultrafast adaptive optical near-field control

... and the integrals are extended over the closed surface limiting the noted region j. A self-consistent solution is obtained under the constraint that the usual electromagnetic boundary conditions are satisfied, using the boundary sources ␴ j and h j as unknowns. The material properties are represente ...
"A MAP equalizer for the optical communications channel"
"A MAP equalizer for the optical communications channel"

Ultrashort light bullets described by the two-dimensional sine
Ultrashort light bullets described by the two-dimensional sine

... Summarizing, in the long-wave approximation, for a quadratic nonlinearity, half-cycle light bullets in the form of a single lump may exist; while for a cubic nonlinearity, collapse occurs. In the present work we will show that in the short-wave approximation for a cubic nonlinearity, a third physica ...
High power, continuous-wave ytterbium-doped fiber - HAL
High power, continuous-wave ytterbium-doped fiber - HAL

... cooling where the laser wavelength has to be specifically adjusted, metrology or medical treatments. There is also an increasing attention of such sources for parametric applications as for instance frequency conversion, including Raman or optical parametric amplifiers [1–3]. To this purpose, rare e ...
Changes.
Changes.

2.7 Optical Fiber Attenuation
2.7 Optical Fiber Attenuation

An Efficient Wide-Angle Beam Propagation Method Using
An Efficient Wide-Angle Beam Propagation Method Using

... higher-order approximation, we may need to perform more matrix inversions corresponding to each P [5], which further decreases the efficiency. To alleviate this issue for those waveguides with unchanging geometry in cross-section, we first simplify the tilted waveguide structures into an equivalent ...
Full-Text PDF
Full-Text PDF

... conditions, Digital Holography has expanded rapidly [1]. This technique now has applications in a large number of domains from investigation of particles in flows [2–7], to visualization of cells in biology or medicine, to phase contrast metrology, or to detection of nanoparticles without being exha ...
Optical Metrology vs SEM. Range, Accuracy, Repeatability
Optical Metrology vs SEM. Range, Accuracy, Repeatability

... We have compared Flux-Area measurements to standard optical edge-to-edge measurements and shown that Flux-Area measurements are able to accurately measure small features well below the limit of conventional techniques. However the multipoint calibration of conventional systems does serve to hide som ...
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Harold Hopkins (physicist)

Harold Horace Hopkins FRS (1918–1994) was a renowned British physicist. His Wave Theory of Aberrations, (published by Oxford University Press 1950), is central to all modern optical design and provides the mathematical analysis which enables the use of computers to create the wealth of high quality lenses available today. In addition to his theoretical work, his many inventions are in daily use throughout the world. These include zoom lenses, coherent fibre-optics and more recently the rod-lens endoscopes which 'opened the door' to modern key-hole surgery. He was the recipient of many of the world's most prestigious awards and was twice nominated for a Nobel Prize. His citation on receiving the Rumford Medal from the Royal Society in 1984 stated: ""In recognition of his many contributions to the theory and design of optical instruments, especially of a wide variety of important new medical instruments which have made a major contribution to clinical diagnosis and surgery.""
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