1.3.6 Electromagnetic radiation Name Symbol Definition SI
... is the amount (of substance) concentration, and l is the path length. Most tabulations give the specific optical rotatory power, denoted [α]. The wavelength of light used λ (frequently the sodium D line) and the Celsius temperature θ are conventionally written as a subscript and superscript to the s ...
... is the amount (of substance) concentration, and l is the path length. Most tabulations give the specific optical rotatory power, denoted [α]. The wavelength of light used λ (frequently the sodium D line) and the Celsius temperature θ are conventionally written as a subscript and superscript to the s ...
LASER Introduction: • The word laser stands for `Light Amplification
... End Mirrors: End mirrors are used for forming the resonant cavity, which can be adjusted to a high degree of parallelism. At one end the mirror is fully silvered and acts as perfect reflector while at another end, it is partially silvered and acts as partial reflector. These mirrors form Fabry-Per ...
... End Mirrors: End mirrors are used for forming the resonant cavity, which can be adjusted to a high degree of parallelism. At one end the mirror is fully silvered and acts as perfect reflector while at another end, it is partially silvered and acts as partial reflector. These mirrors form Fabry-Per ...
Stopped-light quantum electrodynamics (QED)
... the cavity QED paradigm, where photons are spatially confined by a high-finesse cavity (e.g. a pair of mirrors). An atom inside the cavity could then interact with the same photon multiple times, as the latter bounces back and forth between cavity walls before eventually escaping into free space. Th ...
... the cavity QED paradigm, where photons are spatially confined by a high-finesse cavity (e.g. a pair of mirrors). An atom inside the cavity could then interact with the same photon multiple times, as the latter bounces back and forth between cavity walls before eventually escaping into free space. Th ...
Lecture 13: Heisenberg and Uncertainty
... Role of an Observer in Quantum Mechanics The observer is not objective and passive The act of observation changes the physical system irrevocably ...
... Role of an Observer in Quantum Mechanics The observer is not objective and passive The act of observation changes the physical system irrevocably ...
100G EPON Laser Safety Issues
... Compliance with European Directives such as the Low Voltage, Medical Devices, Machinery or even the General Product Safety Directives require that laser products comply with EN 60825-1 (laser products) and, if applicable, EN 60825-2 (fiber optic laser products) in addition to other requirements of t ...
... Compliance with European Directives such as the Low Voltage, Medical Devices, Machinery or even the General Product Safety Directives require that laser products comply with EN 60825-1 (laser products) and, if applicable, EN 60825-2 (fiber optic laser products) in addition to other requirements of t ...
Future remote characterization of a magnesium optical lattice clock
... laser system @ IQ and the 10 m prototype interferometer @ AEI is shown. The systems could benefit from each other by complementary stabilization. Clock laser systems would improve in higher frequency regimes due to typically long interferometer arms of gravitational wave detectors compared to clock ...
... laser system @ IQ and the 10 m prototype interferometer @ AEI is shown. The systems could benefit from each other by complementary stabilization. Clock laser systems would improve in higher frequency regimes due to typically long interferometer arms of gravitational wave detectors compared to clock ...
Criteria for Optical Systems: Optical Path Difference • Optical Path
... has 5x1021 photons: force of 6.25x10-6 N/m2 • Proposed for Solar Light Sails in space (get that force/sq m of sail) small acceleration but very large velocity over time. • Russian Cosmos 1 solar sail Failed to reach 500 km orbit June 2005 ...
... has 5x1021 photons: force of 6.25x10-6 N/m2 • Proposed for Solar Light Sails in space (get that force/sq m of sail) small acceleration but very large velocity over time. • Russian Cosmos 1 solar sail Failed to reach 500 km orbit June 2005 ...
Optical Gain Experiment Manual
... The Variable stripe length Method which has been demonstrated by Shaklee and Leheny in 1971 is a direct measurement of the optical gain. A sample from the active material is pumped by a homogeneous line of a laser beam emitted from high power pulsed laser. The emitted light from the edge of the samp ...
... The Variable stripe length Method which has been demonstrated by Shaklee and Leheny in 1971 is a direct measurement of the optical gain. A sample from the active material is pumped by a homogeneous line of a laser beam emitted from high power pulsed laser. The emitted light from the edge of the samp ...
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.