Pulsed Quasi-monochromatic x-ray source for radiography
... this spectral range. Laser energy of the single beam now increased to 20 J per laser pulse and then was converted into a two arm laser system with 10 J energy in each arm. One beam with 10 J/300 - 800 ps was focused in 80-100 µm diameter (focussed intensity ~ 1014 W/cm2) on a gold target to generate ...
... this spectral range. Laser energy of the single beam now increased to 20 J per laser pulse and then was converted into a two arm laser system with 10 J energy in each arm. One beam with 10 J/300 - 800 ps was focused in 80-100 µm diameter (focussed intensity ~ 1014 W/cm2) on a gold target to generate ...
Effects of atmospheric turbulence on remote optimal control
... Atmospheric applications of ultrashort and ultraintense lasers have recently emerged as a novel and very active field of research. On one side, the use of filamentation in air as coherent white light source for Light Detection and Ranging of atmospheric species has been proven as an attractive metho ...
... Atmospheric applications of ultrashort and ultraintense lasers have recently emerged as a novel and very active field of research. On one side, the use of filamentation in air as coherent white light source for Light Detection and Ranging of atmospheric species has been proven as an attractive metho ...
Measuring the Real Point Spread Function of High Numerical
... nanometer colloidal gold beads mounted beneath a #1.5 coverslip of nominal thickness (0.17 mm) acted as point scatterers in this case. The coverslip was in turn mounted on a microscope slide and a gap between them was filled with immersion oil so as to eliminate reflection from the back surface of t ...
... nanometer colloidal gold beads mounted beneath a #1.5 coverslip of nominal thickness (0.17 mm) acted as point scatterers in this case. The coverslip was in turn mounted on a microscope slide and a gap between them was filled with immersion oil so as to eliminate reflection from the back surface of t ...
A Novel Pulse Measurement System by Using Laser Triangulation and a CMOS Image Sensor
... devices used in the above-mentioned studies could either interfere with the measurement results because of making contact with the body, or were more costly because of having additional sensors for probing multiple points. An optical non-contacting technology, which is based on optical triangulation ...
... devices used in the above-mentioned studies could either interfere with the measurement results because of making contact with the body, or were more costly because of having additional sensors for probing multiple points. An optical non-contacting technology, which is based on optical triangulation ...
Light emission despite doubly-forbidden radiative
... GaP, 50 meV at the C point, and about 46 meV at L and X valleys.18 Hence, the second lower energy peak is from a phonon-assisted transition and the first peak is identified as the no-phonon (NP) peak. Note that the wider QWs have relatively weaker NP peaks. The actual transition energies for NP peak ...
... GaP, 50 meV at the C point, and about 46 meV at L and X valleys.18 Hence, the second lower energy peak is from a phonon-assisted transition and the first peak is identified as the no-phonon (NP) peak. Note that the wider QWs have relatively weaker NP peaks. The actual transition energies for NP peak ...
Adaptive secondary mirrors
... • If sodium layer is illuminated with a single frequency laser tuned to the peak of the D2 line only a few per cent (of order 10 MHz/1GHz) of the atoms travel in a direction to interact at all with the radiation field. • These atoms interact strongly with the radiation until they collide or change d ...
... • If sodium layer is illuminated with a single frequency laser tuned to the peak of the D2 line only a few per cent (of order 10 MHz/1GHz) of the atoms travel in a direction to interact at all with the radiation field. • These atoms interact strongly with the radiation until they collide or change d ...
Slide 1
... For ideal plane wave (100% coherent), (phase) is constant, independent of r (position) and t (time). But in reality, = (r, t) At any z-value z0, if the phase difference between subbeam A and A’ is small, namely (A’)-(A)<<2, we can then consider as constant, and the two beam can interfere ...
... For ideal plane wave (100% coherent), (phase) is constant, independent of r (position) and t (time). But in reality, = (r, t) At any z-value z0, if the phase difference between subbeam A and A’ is small, namely (A’)-(A)<<2, we can then consider as constant, and the two beam can interfere ...
Constant Resolution Omnidirectional Cameras
... a way that certain world-to-image geometric properties are preserved - which we will refer to as linear projection properties. The choice of the properties that should be preserved by the catadioptric imaging system is naturally related to the specific application at hand: e.g. tracking and visual n ...
... a way that certain world-to-image geometric properties are preserved - which we will refer to as linear projection properties. The choice of the properties that should be preserved by the catadioptric imaging system is naturally related to the specific application at hand: e.g. tracking and visual n ...
Summary of the Invention. The aim of scanning jet
... a topological figure, that considerably complicates and elongates all process. As it follows from said above, there is a number of problems for sequential ways of a nanolithography, which should be solved to make possible the creation of the serial apparatus. In this invention conjugation of wide kn ...
... a topological figure, that considerably complicates and elongates all process. As it follows from said above, there is a number of problems for sequential ways of a nanolithography, which should be solved to make possible the creation of the serial apparatus. In this invention conjugation of wide kn ...
Low-coherence heterodyne photon correlation spectroscopy
... was accomplished by filling the sample cell with the colloidal suspension to be studied. ...
... was accomplished by filling the sample cell with the colloidal suspension to be studied. ...
Integrated Optics
... combined into a single device. The ultimate aim is to create miniature optical circuits similar to the silicon chips that have revolutionized the electronics industry. The advantage of the optical approach however is that data can be processed at much higher speeds. • “Integrated optics is a technol ...
... combined into a single device. The ultimate aim is to create miniature optical circuits similar to the silicon chips that have revolutionized the electronics industry. The advantage of the optical approach however is that data can be processed at much higher speeds. • “Integrated optics is a technol ...
Optically Enhanced Magnetic Resonance
... Apart from magnetic resonance, the interaction of matter with laser light is the second most important ingredient for the experiments that will be discussed below. In laser spectroscopy, light induces transitions between different electronic states. Many of the differences between laser spectroscopy ...
... Apart from magnetic resonance, the interaction of matter with laser light is the second most important ingredient for the experiments that will be discussed below. In laser spectroscopy, light induces transitions between different electronic states. Many of the differences between laser spectroscopy ...
optical coherence tomography
... Tomography is based on the reconstruction of cross-sectional images of an object from its projections. While the basic mathematics was described as early as 1917 by J. Radon,1 the implementation of this principle in medical imaging took a rather long time and led to a great number of configurations, ...
... Tomography is based on the reconstruction of cross-sectional images of an object from its projections. While the basic mathematics was described as early as 1917 by J. Radon,1 the implementation of this principle in medical imaging took a rather long time and led to a great number of configurations, ...