ppt 3.7MB - Weizmann Institute of Science
... • Progress in single photon manipulation via atomic memory • Shaping single photon pulses via Raman scattering and EIT simultaneous control over timing, shapes,direction and photon number outlook: new techniques for long distance quantum communication ...
... • Progress in single photon manipulation via atomic memory • Shaping single photon pulses via Raman scattering and EIT simultaneous control over timing, shapes,direction and photon number outlook: new techniques for long distance quantum communication ...
Millikan Oil Drop Apparatus
... Square Law to be verified with reasonable accuracy. However, for more accurate and thorough investigations, we strongly recommend the following (see the ordering information for recommended equipment): ...
... Square Law to be verified with reasonable accuracy. However, for more accurate and thorough investigations, we strongly recommend the following (see the ordering information for recommended equipment): ...
Full text
... Quantum Cascade Lasers (QCLs) have been the focus of much investigation over the past decade because of their many desirable properties. They can be operated in both continuous and pulsed mode with higher performance than traditional semiconductor lasers at the same wavelength. Pulsed operation can ...
... Quantum Cascade Lasers (QCLs) have been the focus of much investigation over the past decade because of their many desirable properties. They can be operated in both continuous and pulsed mode with higher performance than traditional semiconductor lasers at the same wavelength. Pulsed operation can ...
Single particles quantum cryptography
... the times she will register on both of her detectors and know that her base was wrong therefore she will not sent anything to Bob (to Bob it would occur as random deleting), and Eve will reduce the error she is causing. ...
... the times she will register on both of her detectors and know that her base was wrong therefore she will not sent anything to Bob (to Bob it would occur as random deleting), and Eve will reduce the error she is causing. ...
1 Introduction 2 Theory of Optical Trapping
... medium), placed in an intensity gradient (Figure 1). A ray that travels through the bead is refracted twice due to the change in index of refraction at the interfaces. The change in direction of the ray is accompanied by a corresponding change in momentum of the ray, and with an opposite change of m ...
... medium), placed in an intensity gradient (Figure 1). A ray that travels through the bead is refracted twice due to the change in index of refraction at the interfaces. The change in direction of the ray is accompanied by a corresponding change in momentum of the ray, and with an opposite change of m ...
Quantum optics with gamma radiation
... A prime condition for gain with stimulated emission is population inversion, or explicitly, the number of excited state nuclei from which lasing has to occur, exceeds the number of ground state nuclei. This condition requires that one must be able to perform a nuclear isomeric separation in order to ...
... A prime condition for gain with stimulated emission is population inversion, or explicitly, the number of excited state nuclei from which lasing has to occur, exceeds the number of ground state nuclei. This condition requires that one must be able to perform a nuclear isomeric separation in order to ...
Wave Particle Unity and a Physically Realist Interpretation of Light
... wave and centered at the location of scattering. The second process involves light which is not scattered being 'pushed aside' (the Renninger (5) effect) creating a shadow in the given direction and increasing the density (and hence also the chances of absorption) from other locations. I will not de ...
... wave and centered at the location of scattering. The second process involves light which is not scattered being 'pushed aside' (the Renninger (5) effect) creating a shadow in the given direction and increasing the density (and hence also the chances of absorption) from other locations. I will not de ...
Attosecond lighthouse driven by sub-two
... distribution of beamlets (vertical axis) plotted for different values of CEP (horizontal axis). To obtain the figure, the spectrum was integrated from 45 to 50 eV (color code) at each spatial position. The data is shown for N2 as a function of the CEP phase which was scanned at ∼6 mrad per step (shot ...
... distribution of beamlets (vertical axis) plotted for different values of CEP (horizontal axis). To obtain the figure, the spectrum was integrated from 45 to 50 eV (color code) at each spatial position. The data is shown for N2 as a function of the CEP phase which was scanned at ∼6 mrad per step (shot ...
Low-coherence heterodyne photon correlation spectroscopy
... fluid, making the polystyrene spheres neutrally buoyant. The volume fractions utilized ranged from 0.001% to 0.01% yielding from one-third to three scattering mean-free-path lengths across our 1 cm sample cell. We find that the number of scattering path lengths across the sample cell (L, where i ...
... fluid, making the polystyrene spheres neutrally buoyant. The volume fractions utilized ranged from 0.001% to 0.01% yielding from one-third to three scattering mean-free-path lengths across our 1 cm sample cell. We find that the number of scattering path lengths across the sample cell (L, where i ...
Photonic laser thruster
A photonic laser thruster is an amplified laser thruster that generates thrust directly from the laser photon momentum, rather than laser-heating propellant. The concept of single-bounce laser-pushed lightsails that utilize the photon momentum was first developed in the 1960s, however, its conversion of laser power to thrust is highly inefficient, thus has been considered impractical. Over 50 years, there had been numerous theoretical and experimental efforts to increase the conversion efficiency by recycling photons, bouncing them repetitively between two reflective mirrors in an empty optical cavity, without success. In December 2006, Young Bae successfully solved this problem and demonstrated the conversion efficiency enhancement by a factor of 100 and a photon thrust of 35 micronewtons by putting the laser energizing media between the two mirrors as in typical lasers, and the photonic laser thruster was born. In August 2015, the photonic laser thruster was demonstrated to increase the conversion efficiency enhancement by a factor over 1,000 and to achieve a photon thrust of 3.5 millinewtons at Y.K. Bae Corporation. In addition, Propelling, slowing and stopping of a small satellite, 1U CubeSat, in simulated zero-gravity were demonstrated. The photonic laser thruster was initially developed for use in nanometer precision spacecraft formation, for forming ultralarge space telescopes and radars. The photonic laser thruster is currently developed for high-precision and high-speed maneuver of small spacecraft, such as formation flying, orbit adjustments, drag compensation, and rendezvous and docking. The photonic laser thruster can be used for beaming thrust from a conventional heavy resource vehicle to a more expensive & lightweight mission vehicle, similar to tankers in aerial refueling.The practical usage of the photonic laser thruster for main space propulsion would require extremely high laser powers and overcoming technological challenges in achieving the laser power and fabricating the required optics. Photonic laser thrusters have a very high specific impulse, and can permit spacecraft reach much higher speeds than with conventional rockets, which are limited by the Tsiolkovsky rocket equation. If the photonic laser thruster is scalable for the use in such main space propulsion, multiple photonic laser thrusters can be used to construct a 'photonic railway' that has been proposed as a potential permanent transport infrastructure for interplanetary or interstellar commutes, allowing the transport craft themselves to carry very little fuel.