Photonic Lanterns
... SMFs was inserted into a low index glass capillary tube which was then fused and tapered down to form an all solid MMF at the other end (Fig. 1(b)). As reported previously in [5], another interesting approach for the realization of these multimode to single-mode transitions is by using a multicore f ...
... SMFs was inserted into a low index glass capillary tube which was then fused and tapered down to form an all solid MMF at the other end (Fig. 1(b)). As reported previously in [5], another interesting approach for the realization of these multimode to single-mode transitions is by using a multicore f ...
Nature template - PC Word 97
... While undulator radiation is widely used in synchrotron radiation sources to generate high-brilliance (photon flux per frequency bandwidth per unit phase space volume) ultraviolet and X-ray beams, a boost in intensity by many orders of magnitude is achieved in an FEL due to the interaction of the el ...
... While undulator radiation is widely used in synchrotron radiation sources to generate high-brilliance (photon flux per frequency bandwidth per unit phase space volume) ultraviolet and X-ray beams, a boost in intensity by many orders of magnitude is achieved in an FEL due to the interaction of the el ...
Remote Entanglement of Trapped Atomic Ions
... singlehandedly. I’d therefore like to first thank all those who worked directly with me on my experiments. When I first joined Chris Monroe’s group back in the Summer of 2002, Chris gave me an empty optical table and pretty much said, “have at it.” Russ Miller, an undergraduate with a year of experi ...
... singlehandedly. I’d therefore like to first thank all those who worked directly with me on my experiments. When I first joined Chris Monroe’s group back in the Summer of 2002, Chris gave me an empty optical table and pretty much said, “have at it.” Russ Miller, an undergraduate with a year of experi ...
OPTIMISATION OF PHOTONIC CRYSTAL WAVEGUIDE BASED OPTICAL FILTER
... This thesis is comprised of 4 more chapters that follow, where in chapter 2 an overview of what photonic crystal is about and discussion about its basic physical properties, including the 2D structure is given. This has been done so that one can get a fundamental idea about photonic crystals which w ...
... This thesis is comprised of 4 more chapters that follow, where in chapter 2 an overview of what photonic crystal is about and discussion about its basic physical properties, including the 2D structure is given. This has been done so that one can get a fundamental idea about photonic crystals which w ...
Get PDF - OSA Publishing
... integrated photonic devices. The study of nonlinear photonic crystals made of a Kerr nonlinear material [2, 3], has revealed that such structures can support self-trapped localized modes of the electromagnetic field in the form of optical gap solitons [4] with the energies inside the photonic gaps o ...
... integrated photonic devices. The study of nonlinear photonic crystals made of a Kerr nonlinear material [2, 3], has revealed that such structures can support self-trapped localized modes of the electromagnetic field in the form of optical gap solitons [4] with the energies inside the photonic gaps o ...
document
... The cluster of atoms can be seen as a bright ball of light due to the reemission of photons. ...
... The cluster of atoms can be seen as a bright ball of light due to the reemission of photons. ...
Ultra-low power parametric frequency conversion in a silicon
... increased by ~15 dB when both the pump and the signal wavelengths are tuned to resonances of the ring as compared to when the signal is off-resonance. This verifies that frequency conversion is occurring in the ring. Conversion is observed over a span greater than 30 nm and is limited by the tunable ...
... increased by ~15 dB when both the pump and the signal wavelengths are tuned to resonances of the ring as compared to when the signal is off-resonance. This verifies that frequency conversion is occurring in the ring. Conversion is observed over a span greater than 30 nm and is limited by the tunable ...
Guiding light with conformal transformations
... minimized the anisotropy needed in the optical constants, which meant that the cloak could be approximated by an isotropic dielectric material, (although still spatially varying), with negligible degradation in performance. This design was subsequently demonstrated at microwave frequencies [14], and ...
... minimized the anisotropy needed in the optical constants, which meant that the cloak could be approximated by an isotropic dielectric material, (although still spatially varying), with negligible degradation in performance. This design was subsequently demonstrated at microwave frequencies [14], and ...
Beam manipulation: prisms vs. mirrors
... Designers of beam manipulation and imaging systems often encounter the need to fold their optical layout into a more compact form, or to redirect light to the next component. In either case, the choice inevitably arises between mirrors, or alternatively, prisms. Solutions may often be found either w ...
... Designers of beam manipulation and imaging systems often encounter the need to fold their optical layout into a more compact form, or to redirect light to the next component. In either case, the choice inevitably arises between mirrors, or alternatively, prisms. Solutions may often be found either w ...
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.