Correlation Effects in Two-Electron Model Atoms in Intense Laser
... for study. However, as Grobe et al. have shown [13], there are several more or less equally sensible and closely compatible definitions of the degree of electron correlation that are, in principle, open to calculation. The difficulty in taking this route has been obtaining wave functions that are ac ...
... for study. However, as Grobe et al. have shown [13], there are several more or less equally sensible and closely compatible definitions of the degree of electron correlation that are, in principle, open to calculation. The difficulty in taking this route has been obtaining wave functions that are ac ...
Indexing terms/Keywords
... Nd:Y3Al5O12 ). It is a rod of a length of 30 mm and 2 mm diameter as shown in Figure 2.11d. Note that during operation, the active medium is equivalent to a thermal lens. (ix) PD1 and PD2 are used to detect the optical signals by measuring their currents which are converted to voltages with a load r ...
... Nd:Y3Al5O12 ). It is a rod of a length of 30 mm and 2 mm diameter as shown in Figure 2.11d. Note that during operation, the active medium is equivalent to a thermal lens. (ix) PD1 and PD2 are used to detect the optical signals by measuring their currents which are converted to voltages with a load r ...
Splitting of Micro-Cavity Degenerate Modes in Rotating Ph
... We feel, however, that before turning to the theoretical study, a brief description of the differences between our work and the classical analysis of Sagnac effect is in order. The simplest and most familiar example of an optical resonator with degenerate modes is the closed loop or ring structure mad ...
... We feel, however, that before turning to the theoretical study, a brief description of the differences between our work and the classical analysis of Sagnac effect is in order. The simplest and most familiar example of an optical resonator with degenerate modes is the closed loop or ring structure mad ...
Chapter 2 Femtosecond Laser Pulses - diss.fu
... because focusing the beam increases the focal ”power” of this ”lens”. The increase of the focusing stops when the diameter of the beam is small enough and the linear diffraction is large enough to balance the Kerr effect. Consider now a seed beam with a Gaussian profile propagating through a nonline ...
... because focusing the beam increases the focal ”power” of this ”lens”. The increase of the focusing stops when the diameter of the beam is small enough and the linear diffraction is large enough to balance the Kerr effect. Consider now a seed beam with a Gaussian profile propagating through a nonline ...
Optics and Quantum Electronics - Research Laboratory of Electronics
... mirrors developed in our group, provide high reflectivity and well controlled dispersion over 400 nm in the case of single mirrors or even over one octave using specially matched mirror pairs. These components are a prerequisite for miniaturized ultrabroadband femtosecond lasers necessary for biomed ...
... mirrors developed in our group, provide high reflectivity and well controlled dispersion over 400 nm in the case of single mirrors or even over one octave using specially matched mirror pairs. These components are a prerequisite for miniaturized ultrabroadband femtosecond lasers necessary for biomed ...
Depth of field and improved resolution of slit-scan flow systems
... of optical resolution under the real experimental conditions used as well as a description how to overcome experimental limitations are missing. Often, resolution values are estimated under the assumption of ideal Gaussian beam propagation. These estimates suffer from a discrepancy to practical impl ...
... of optical resolution under the real experimental conditions used as well as a description how to overcome experimental limitations are missing. Often, resolution values are estimated under the assumption of ideal Gaussian beam propagation. These estimates suffer from a discrepancy to practical impl ...
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.