Optical properties of small-bore hollow glass waveguides
... shows the measured beam profile of the 250-µm-bore straight waveguide. The lowest-order mode of the waveguide 1HE11 mode2 is maintained nearly perfectly because of the smooth inner surface and the high uniformity in the cross section of the waveguide. Other hollow guides that are made from plastic a ...
... shows the measured beam profile of the 250-µm-bore straight waveguide. The lowest-order mode of the waveguide 1HE11 mode2 is maintained nearly perfectly because of the smooth inner surface and the high uniformity in the cross section of the waveguide. Other hollow guides that are made from plastic a ...
Astronomy Astrophysics - Georg-August
... The Hγ line and the redshifted Hα line are heavily contaminated by other emission and/or absorption lines as had been said before. Therefore, the correlation coefficient is smaller in the wings of these lines. From now on we will consider only the Hβ, HeIλ5876, and HeIIλ4686 lines for a more detaile ...
... The Hγ line and the redshifted Hα line are heavily contaminated by other emission and/or absorption lines as had been said before. Therefore, the correlation coefficient is smaller in the wings of these lines. From now on we will consider only the Hβ, HeIλ5876, and HeIIλ4686 lines for a more detaile ...
The Strontium Optical Lattice Clock
... One of the most well-developed applications of coherent interaction with atoms is atomic frequency standards and clocks. Atomic clocks find significant roles in a number of scientific and technological settings. State-of-the-art, laser-cooled, Cs-fountain microwave clocks have demonstrated impressiv ...
... One of the most well-developed applications of coherent interaction with atoms is atomic frequency standards and clocks. Atomic clocks find significant roles in a number of scientific and technological settings. State-of-the-art, laser-cooled, Cs-fountain microwave clocks have demonstrated impressiv ...
The Strontium Optical Lattice Clock
... One of the most well-developed applications of coherent interaction with atoms is atomic frequency standards and clocks. Atomic clocks find significant roles in a number of scientific and technological settings. State-of-the-art, laser-cooled, Cs-fountain microwave clocks have demonstrated impressiv ...
... One of the most well-developed applications of coherent interaction with atoms is atomic frequency standards and clocks. Atomic clocks find significant roles in a number of scientific and technological settings. State-of-the-art, laser-cooled, Cs-fountain microwave clocks have demonstrated impressiv ...
Phase retrieval in X-ray phase-contrast imaging suitable for
... properly, the phase-contrast will consist of edge enhancement, as shown in the example in Fig. 2 where (a) is the object and (b) the simulated phase-contrast image. While the edges in (b) are clear and small structures can be detected, the quantitative relation between phase-contrast image and objec ...
... properly, the phase-contrast will consist of edge enhancement, as shown in the example in Fig. 2 where (a) is the object and (b) the simulated phase-contrast image. While the edges in (b) are clear and small structures can be detected, the quantitative relation between phase-contrast image and objec ...
Magnetic fields in Local Group dwarf irregulars⋆
... confusing background sources had to be removed. For identification of background sources, we compared our radio maps with those of the Condon (1987), NVSS1 , and FIRST2 surveys. We then applied the “subtraction” method (Chyży et al. 2003) and removed all confusing sources from the maps. For clear d ...
... confusing background sources had to be removed. For identification of background sources, we compared our radio maps with those of the Condon (1987), NVSS1 , and FIRST2 surveys. We then applied the “subtraction” method (Chyży et al. 2003) and removed all confusing sources from the maps. For clear d ...
Fast Optical Transients - Harvard-Smithsonian Center for Astrophysics
... chain, allowing for incomplete gamma-ray line is a model for the decline phase based on the instantaneous energy deposition events from the peak days prior to V-band maximum and then trapping. Dotted lines indicate the epochs of our early spectra. decline rapidly, consistent with our inferred time o ...
... chain, allowing for incomplete gamma-ray line is a model for the decline phase based on the instantaneous energy deposition events from the peak days prior to V-band maximum and then trapping. Dotted lines indicate the epochs of our early spectra. decline rapidly, consistent with our inferred time o ...
Decay and Amplification of Magnetic Fields
... enough, any arbitrarily complex magnetic field in the sun or stars will eventually end up looking dipolar. Conversely, a fluid flow acting as a dynamo in a sphere and trying to “beat” Ohmic dissipation can be expected to preferentially produce a magnetic field approximating diffusive eigenmodes of l ...
... enough, any arbitrarily complex magnetic field in the sun or stars will eventually end up looking dipolar. Conversely, a fluid flow acting as a dynamo in a sphere and trying to “beat” Ohmic dissipation can be expected to preferentially produce a magnetic field approximating diffusive eigenmodes of l ...
Lithium Niobate Microphotonic Modulators
... scale. (b) Results of simulating the electromagnetic field intensity of a M = 5, N = 1, resonance for a microdisk similar to that shown in (a) with radius R ~ Ml/2pneff, where l is the resonance wavelength and neff is the effective refractive index. .................................................. ...
... scale. (b) Results of simulating the electromagnetic field intensity of a M = 5, N = 1, resonance for a microdisk similar to that shown in (a) with radius R ~ Ml/2pneff, where l is the resonance wavelength and neff is the effective refractive index. .................................................. ...
Recent advances in diffuse optical imaging
... Recently, the emphasis of research in medical imaging with diffuse light has moved away from the pursuit of high (∼ mm) spatial resolution and towards functional imaging. It is widely appreciated that diffuse optical imaging can never compete in terms of spatial resolution with anatomical imaging te ...
... Recently, the emphasis of research in medical imaging with diffuse light has moved away from the pursuit of high (∼ mm) spatial resolution and towards functional imaging. It is widely appreciated that diffuse optical imaging can never compete in terms of spatial resolution with anatomical imaging te ...
PreDesigner Manual
... These have been included to give a feel for the performance of the equivalent ‘real’ lens system [diffraction limited performance – no aberrations!]. They are shown under the doted line in the parameters list at lower left of the screen. If the NA is greater than 0.2 then you must be careful in inte ...
... These have been included to give a feel for the performance of the equivalent ‘real’ lens system [diffraction limited performance – no aberrations!]. They are shown under the doted line in the parameters list at lower left of the screen. If the NA is greater than 0.2 then you must be careful in inte ...
Fiber-based optical parametric amplifiers and their applications
... P. A. Andrekson is with Chalmers University of Technology, SE-412 96 Göteborg, Sweden and also with CENiX Inc., Allentown, PA 18106 USA. M. Westlund and P.-O. Hedekvist are with Chalmers University of Technology, SE-412 96 Göteborg, Sweden. J. Li is with Chalmers University of Technology, SE-412 96 ...
... P. A. Andrekson is with Chalmers University of Technology, SE-412 96 Göteborg, Sweden and also with CENiX Inc., Allentown, PA 18106 USA. M. Westlund and P.-O. Hedekvist are with Chalmers University of Technology, SE-412 96 Göteborg, Sweden. J. Li is with Chalmers University of Technology, SE-412 96 ...
Metal Nanoparticles for Microscopy and Spectroscopy
... 3.2 The Optical Response of Bulk Metals The optical response of metal nanostructures is primarily determined by the metal’s conduction electrons, which react collectively to external perturbations such as the applied electric field of a light wave. In this chapter, we are concerned with small particl ...
... 3.2 The Optical Response of Bulk Metals The optical response of metal nanostructures is primarily determined by the metal’s conduction electrons, which react collectively to external perturbations such as the applied electric field of a light wave. In this chapter, we are concerned with small particl ...
High Resolution Chandra Spectroscopy of Gamma Cassiopeia (B0
... of normal B and classical Be stars on the low side and of X-ray Be binaries on the high side. The X-rays are also thermal, but with an extremely high temperature of kT = 10.5– 12 keV. Several investigators have attempted to explain this property by wind or Be-disk infall onto a degenerate companion, ...
... of normal B and classical Be stars on the low side and of X-ray Be binaries on the high side. The X-rays are also thermal, but with an extremely high temperature of kT = 10.5– 12 keV. Several investigators have attempted to explain this property by wind or Be-disk infall onto a degenerate companion, ...
