The Diagnostic Development Group at the Laboratory for Laser Energetics has endeavored to build a stand-alone, remotely operated streak camera with comprehensive autofocus and self-calibration capability. Designated as the Rochester Optical Streak System (ROSS), it is a generic streak camera platform, capable of accepting a variety of streak tubes. The system performance is limited by the insta...

microscope using calculated potential distributions and Monte Carlo simulations Augustus K. W. Chee, Ronald F. Broom, Colin J. Humphreys, and Eric G. T. Bosch Department of Materials Science and Metallurgy, University of Cambridge, Pembroke Street, Cambridge CB2 3QZ, United Kingdom Department of Engineering, Electrical Engineering Division, Centre for Advanced Photonics and Electronics, Univers...

In phase-contrast light and electron microscopy, one exploits the wave properties of photons and electrons respectively. The principles of imaging with waves are the realm of “Fourier Optics”. As a very first experiment (“Gedankenexperiment”), let us think back to days when we – as children – would focus the (parallel) light waves of the (far away) sun on a piece of paper in order to set it ali...

The nonreciprocal propagation of electromagnetic waves in ionized gaseous media is discussed, and experimental observations are reported in this paper. The classical Faraday experiment in the optics of anisotropic media has suggested an analogous phenomenon at microwave frequencies. The anisotropic behavior of the free electron gas which is immersed in a magnetic field and subjected to an incid...

platinum „IV...: Total cross section as a function of incident electron energy W. F. van Dorp, J. D. Wnuk, J. M. Gorham, D. H. Fairbrother, T. E. Madey, and C. W. Hagen Department of Physics and Astronomy, Laboratory of Surface Modification, Rutgers, The State University of New Jersey, Piscataway, New Jersey 08854-8019, USA Charged Particle Optics Group, Faculty of Applied Sciences, Delft Unive...

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In order to measure reliable electron densities of fusion plasmas by using Thomson scattering system, both accurate absolute calibration and long-term stability in the system are required. Even if slight misalignment of some optics occurs, it may cause large errors in measured densities. We propose a new method to obtain correction factors to the errors originated from misalignment by using ste...

We report on a giant Faraday effect in an electron plasma in n-InSb probed via polarization-resolved terahertz (THz) time-domain spectroscopy. Polarization rotation angles and ellipticities reach as large as π/2 and 1, respectively, over a wide frequency range (0.3-2.5 THz) at magnetic fields of a few Tesla. The experimental results together with theoretical simulations show its promising abili...

The advent of long-wavelength coherent sources, such as free-electron lasers, optical parametric amplifiers, and Terahertz antennas, has created a new class of opportunities to study small-energy phenomena in solids in the time domain and/or high-intensity regimes. Long-wavelength light can couple with a wide variety of electronic and vibrational excitations in solids. This paper reviews our re...

are maintained. If the etching depth is equal to an integral number of half-wavelengths, uniformly high reflectivity across the active L. Fan, M.C. Wu, H.C. Lee and P. Grodzinski . mesa is achieved. The top electrodes which simultaneously pump the phase-shifted and non-phase-shifted region are then deposited by evaporation and lift-off processes. Fig. 2 shows the scanning electron micrograph (S...