Results 1 - 10 of 704

6640) Superresolution; (110.1220) Apertures; (110.4850) Optical Transfer Functions; (180.1790) Confocal Microscopy; (180.2520) Fluorescence Microscopy

by Brynmor J Davis , William C Karl , Anna K Swan , M Selimünlü , Bennett B Goldberg
"... Abstract: The use of pupil-plane filters in microscopes has been proposed as a method of producing superresolution. Here it is shown that pupil-plane filters cannot increase the support of the transfer function for a large class of optical systems, implying that resolution cannot be improved solely ..."
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Abstract: The use of pupil-plane filters in microscopes has been proposed as a method of producing superresolution. Here it is shown that pupil-plane filters cannot increase the support of the transfer function for a large class of optical systems, implying that resolution cannot be improved

Profiling with Optical Transition Radiation

by D. W. Rule, R. B. Fiorito - Proceedings of 1993 Particle Accelerator Conference , 1993
"... One of the simplest applications of optical transition radiation (OTR) to accelerator beam diagnostics is beam profiling. We compare the limits of resolution of beam profiles made using OTR and profiles made using synchrotron radiation. We will discuss the physical basis for the limiting resolution ..."
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One of the simplest applications of optical transition radiation (OTR) to accelerator beam diagnostics is beam profiling. We compare the limits of resolution of beam profiles made using OTR and profiles made using synchrotron radiation. We will discuss the physical basis for the limiting resolution

Principles of nano-optics

by Lukas Novotny, Bert Hecht , 2006
"... .. it was almost worth the climb (B.B. Goldberg) ii PREFACE Why should we care about nano-optics? For the same reason as we care for optics! The foundations of many fields of the contemporary sciences have been established using optical experiments. To give an example, think of quantum mechanics. Bl ..."
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. Blackbody radiation, hydrogen lines, or the photoelectric effect were key experiments that nurtured the quantum idea. Today, optical spectroscopy is a powerful means to identify the atomic and chemical structure of different materials. The power of optics is based on the simple fact that the energy of light

BEAM EMITTANCE DETERMINATION USING OPTICAL TRANSITION RADIATION

by R. Chehab M Taurigna, G Bienvenu , 1139
"... Optical transition radiation produced by an electron beam, with an energy scaling from 80 keV to 20 MeV, on alu-minium and silver foils, has been observed in backward direction. Count rates of photons were measured for three orders of magnitude of the electron energy. Emittance has been determined a ..."
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Optical transition radiation produced by an electron beam, with an energy scaling from 80 keV to 20 MeV, on alu-minium and silver foils, has been observed in backward direction. Count rates of photons were measured for three orders of magnitude of the electron energy. Emittance has been determined

MULTI OPTICAL TRANSITION RADIATION SYSTEM FOR ATF2 ∗

by J. Alabau-gonzalvo, C. Blanch Gutierrez, J. V. Civera
"... In this paper we describe the design, installation and first calibration tests of a Multi Optical Transition Radiation System in the beam diagnostic section of the Extraction (EXT) line of ATF2, close to the multi wire scanner system. This system will be a valuable tool for measuring beam sizes and ..."
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In this paper we describe the design, installation and first calibration tests of a Multi Optical Transition Radiation System in the beam diagnostic section of the Extraction (EXT) line of ATF2, close to the multi wire scanner system. This system will be a valuable tool for measuring beam sizes

OPTICAL TRANSITION RADIATION IN PRESENCE OF ACOUSTIC WAVES

by A. R. Mkrtchyan, V. V. Parazian, A. A. Saharian , 2011
"... ar ..."
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FOCUSING OF OPTICAL TRANSITION AND DIFFRACTION RADIATION BY A SPHERICAL TARGET

by L. G. Sukhikh, G. A. Naumenko, A. P. Potylitsyn, J. Urakawa, A. S. Aryshev, S. Boogert, P. V. Karataev
"... For the first time the focusing effect of optical transition and diffraction radiation generated by electrons with the energy of 1.28 GeV has been observed experimentally. A comparison of angular distribution of detected radiation was made for flat and spherical targets. It was shown, that applicati ..."
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For the first time the focusing effect of optical transition and diffraction radiation generated by electrons with the energy of 1.28 GeV has been observed experimentally. A comparison of angular distribution of detected radiation was made for flat and spherical targets. It was shown

Resolution of Transverse Electron Beam Measurements Using Optical Transition Radiation

by Rasmus Ischebeck, Franz-josef Decker, Mark Hogan, Richard H. Iverson, Patrick Krejcik, Melissa Lincoln, Robert H. Siemann, Chris E. Clayton, Chengkun Huang, Los Angeles , 2005
"... In the plasma wakefield acceleration experiment E-167, optical transition radiation is used to measure the transverse profile of the electron bunches before and after the plasma acceleration. The distribution of the electric field from a single electron does not give a point-like distribution on the ..."
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In the plasma wakefield acceleration experiment E-167, optical transition radiation is used to measure the transverse profile of the electron bunches before and after the plasma acceleration. The distribution of the electric field from a single electron does not give a point-like distribution

OPTICAL TRANSITION RADIATION MONITOR FOR HIGH INTENSITY PROTON BEAM AT THE J-PARC

by M. Takasaki, K. Tanaka, Y. Yamanoi, H. Watanabe
"... The OTR (Optical Transition Radiation) is a powerful tool to observe 2-dimensional information of beam profile at the high intensity beam line because the OTR intensity only depends on the screen reflectivity so that we can minimize a beam loss. However, it is necessary to overcome large background ..."
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The OTR (Optical Transition Radiation) is a powerful tool to observe 2-dimensional information of beam profile at the high intensity beam line because the OTR intensity only depends on the screen reflectivity so that we can minimize a beam loss. However, it is necessary to overcome large background

OPTICAL TRANSITION RADIATION MEASUREMENTS ON THE BEIJING FREE-ELECTRON LASER*

by Li Quanfeng A, Wu Pin, Gao Jianjiang, Wu Gang
"... The measurement system have been developed for use with the Beijing free-electron laser (BFEL), based on the techniques of optical transition radiation (OTR). The 32-channel OTR detector forms part of a high-resolution (0.02%) electron spectrometer. Design parts of the spectrometer are presented, an ..."
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The measurement system have been developed for use with the Beijing free-electron laser (BFEL), based on the techniques of optical transition radiation (OTR). The 32-channel OTR detector forms part of a high-resolution (0.02%) electron spectrometer. Design parts of the spectrometer are presented
Results 1 - 10 of 704