The Fabry-Pérot Interferometer
... Slightly divergent monochromatic light enters the two glass plates in Fig. 2. Their four surfaces are very plane, the inner ones are parallel to each other and highly reflecting. To guide reflections from the outer faces away, the glass plates are wedged at 0.5◦ . The interference of light from the ...
... Slightly divergent monochromatic light enters the two glass plates in Fig. 2. Their four surfaces are very plane, the inner ones are parallel to each other and highly reflecting. To guide reflections from the outer faces away, the glass plates are wedged at 0.5◦ . The interference of light from the ...
Inexpensive optical tweezers for undergraduate laboratories
... The basic operation of optical tweezers can be explained by the momentum transfer associated with redirection of light at a dielectric interface. Since light carries momentum that is proportional to its energy and in the direction of propagation, the reflection and refraction of light at the interfa ...
... The basic operation of optical tweezers can be explained by the momentum transfer associated with redirection of light at a dielectric interface. Since light carries momentum that is proportional to its energy and in the direction of propagation, the reflection and refraction of light at the interfa ...
Particles in a gas may be viewed as wavepackets with an extent of
... two counterpropagating laser beams), experience a force derived from the spatial gradient of their light shifts (see below).When δ>>γd, spontaneous emission may occur less frequently than stimulated emission. The force arising from stimulated emission is known as the dipole force and derives from th ...
... two counterpropagating laser beams), experience a force derived from the spatial gradient of their light shifts (see below).When δ>>γd, spontaneous emission may occur less frequently than stimulated emission. The force arising from stimulated emission is known as the dipole force and derives from th ...
Optical pumping of a lithium atomic beam for atom interferometry
... to achieve optical pumping and to characterize the internal state distribution. This is why, the optical pumping of atomic beams developed a lot with the progress of tunable lasers and, especially laser diodes. We will not discuss here optical pumping of cold atom clouds because these experiments us ...
... to achieve optical pumping and to characterize the internal state distribution. This is why, the optical pumping of atomic beams developed a lot with the progress of tunable lasers and, especially laser diodes. We will not discuss here optical pumping of cold atom clouds because these experiments us ...
Dark solitons in mode-locked lasers Mark J. Ablowitz , Theodoros P. Horikis
... lasers has become an indispensable tool in many research activities. Advances in optical frequency standards have resulted in the development of precise frequency measurement capability in the visible and nearinfrared spectral regions. Although the potential for using ML lasers in optical frequency ...
... lasers has become an indispensable tool in many research activities. Advances in optical frequency standards have resulted in the development of precise frequency measurement capability in the visible and nearinfrared spectral regions. Although the potential for using ML lasers in optical frequency ...
Paper
... respectively. Recently, Bose-Einstein condensates illuminated by an off-resonant laser beam (“dressed condensates”) were used to realize phase-coherent amplification of matter waves [1,2]. The amplification process involved the scattering of a condensate atom and a laser photon into an atom in a rec ...
... respectively. Recently, Bose-Einstein condensates illuminated by an off-resonant laser beam (“dressed condensates”) were used to realize phase-coherent amplification of matter waves [1,2]. The amplification process involved the scattering of a condensate atom and a laser photon into an atom in a rec ...
High-speed optical frequency-domain imaging
... detection of disease [4-8]. The relatively slow imaging speed (approximately 2 kHz A-line rate) of time-domain OCT systems, however, has precluded its use for screening of large tissue volumes, which is required for a wide variety of medical applications. Imaging speed has a fundamental significance ...
... detection of disease [4-8]. The relatively slow imaging speed (approximately 2 kHz A-line rate) of time-domain OCT systems, however, has precluded its use for screening of large tissue volumes, which is required for a wide variety of medical applications. Imaging speed has a fundamental significance ...
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.