Lasing without inversion (LWI), or lasing without population inversion, is a technique used for light amplification by stimulated emission without the...

technique, known as lasing without inversion, allows optical amplification to take place without producing a population inversion between the two states...

context of Fermi gases. Polariton condensation is sometimes called “lasing without inversion”. Polaritons are bosonic quasiparticles which can be thought of...

fluorescence suppressed Raman spectroscopy. Lasing without maintaining the medium excited into a population inversion was demonstrated in 1992 in sodium gas...

to: Legal Writing Institute, an American non-profit organization Lasing without inversion, a laser technique Living Water International, a faith-based non-profit...

amplification without requiring a population inversion. The effect was the precursor of a class of effects known as Lasers Without Inversion, or the LWI...

effects, such as electromagnetically induced transparency (EIT), lasing without inversion (LWI), stimulated raman adiabatic passage (STIRAP) and nonlinear...

to produce a population inversion. Feedback of the ASE by the laser's optical cavity may produce laser operation if the lasing threshold is reached. Excess...

that uses an organic dye as the lasing medium, usually as a liquid solution. Compared to gases and most solid state lasing media, a dye can usually be used...

titled "Light Amplifiers Employing Collisions to Produce Population Inversions" (subsequently amended as a continuation in part and finally issued as...

lasers. An FP laser will lase at multiple cavity modes within the gain bandwidth of the lasing medium. The number of lasing modes in an FP laser is usually...

layers than conventional Raman, can be used to discover counterfeit drugs without opening their packaging, and to non-invasively study biological tissue...

propagation is limited to directions within a small angle of an axis. Without loss of generality let us take that direction to be the +z direction in...

spectroscopy, from electromagnetically induced transparency and lasing without inversion to nonlinear optics at maximal coherence. 2000 Alexander Prokhorov...

created sound waves in the rod before the lasing was complete, ruining the focus of the laser. A new lasing medium would be required. Livermore ordered...

intracavity beam is produced. If the cavity is unstable, the beam size will grow without limit, eventually growing larger than the size of the cavity mirrors and...

28, 1997 and expired January 28, 2014. A similar process was patented without being commercialized by R. F. Housholder in 1979. As SLS requires the use...

clean surfaces, remove paint or coating, or prepare surfaces for painting without damaging the underlying surface. High power lasers clean a large spot with...

content team, content team (July 23, 2019). "LASEK: A Magic Helping You Do Without Eyeglasses". sinahealthtour.com. Archived from the original on July 25...

Bragg reflectors. An early demonstration of polaritonic lasing and a comparison to conventional lasing was achieved in 2003 by H. Deng et al. at Stanford University...

be configured to emit photons either perpendicular or horizontal to the lasing medium layers depending on end use. Direct diode infrared semiconductor...

neodymium-doped yttrium lithium fluoride (Nd:YLF)), which lases deeper in the infrared at 1064 nm. This lasing action is due to an electronic transition in the...

Solid-state organic lasers Laser dye photostability Laser crystals Lasing without population inversion Electromagnetically induced transparency Optics communications...

ultraviolet and x-rays means that X-ray free electron lasers (XFEL) need to work without a resonant cavity. Consequently, in an X-ray FEL (XFEL) the beam is produced...

surrounding tissues] were found with the use of LLLT than in treatments without it.” An ongoing area of research is the application of LLLT for increasing...

its directional precision, a laser precisely cuts and cauterizes tissues without damaging neighboring cells. It's the safest technique and most precise...

passes through a transparent crystal material that emits a terahertz pulse without any applied voltages. It is a nonlinear-optical process, where an appropriate...

generation. Hence, the lasing transition with production of only one particle – photon – must be resonant. This means that the lasing transition must be allowed...

emission Continuous wave Laser ablation Laser linewidth Lasing threshold Population inversion Ultrashort pulse Laser optics Beam expander Beam homogenizer...

enlarging of an image; such enlargement can be realized with passive elements, without gain medium. There is no established terminology about gain and absorption...