• Amplified spontaneous emission (ASE) or superluminescence is light, produced by spontaneous emission, that has been optically amplified by the process...
    6 KB (770 words) - 22:33, 4 December 2023
  • Self-amplified spontaneous emission (SASE) is a process within a free-electron laser (FEL) by which a laser beam is created from a high-energy electron...
    3 KB (363 words) - 05:21, 23 March 2024
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    substantial amplification. In most lasers, lasing begins with spontaneous emission into the lasing mode. This initial light is then amplified by stimulated...
    113 KB (12,648 words) - 23:01, 21 October 2024
  • Thumbnail for Optical amplifier
    amplified by stimulated emission. The initial spontaneous emission is therefore amplified in the same manner as the signals, hence the term Amplified...
    39 KB (5,213 words) - 14:49, 1 October 2024
  • Thumbnail for Free-electron laser
    intense pulses from the X-ray laser lies in the principle of self-amplified spontaneous emission (SASE), which leads to microbunching. Initially all electrons...
    40 KB (4,753 words) - 03:52, 28 August 2024
  • Thumbnail for Sound amplification by stimulated emission of radiation
    Sound amplification by stimulated emission of radiation (SASER) refers to a device that emits acoustic radiation. It focuses sound waves in a way that...
    55 KB (7,513 words) - 23:36, 26 October 2024
  • in forward direction, becomes optically active and generates amplified spontaneous emission over a wide range of wavelengths. The peak wavelength and the...
    23 KB (3,153 words) - 18:37, 24 October 2024
  • Thumbnail for Raman spectroscopy
    while the rest of the collected light is dispersed onto a detector. Spontaneous Raman scattering is typically very weak; as a result, for many years...
    84 KB (9,856 words) - 23:04, 30 October 2024
  • Thumbnail for Stimulated emission
    identical to the photons of the incident wave. This is in contrast to spontaneous emission, which occurs at a characteristic rate for each of the atoms/oscillators...
    21 KB (3,246 words) - 16:27, 23 October 2024
  • between photons emitted from a group of excited atoms; in other words, spontaneous emission is incoherent. In the absence of other processes, the number of atoms...
    21 KB (3,062 words) - 13:43, 26 July 2024
  • stamped envelope, used for expediting a reply via mail Self-amplified spontaneous emission, a process by which a laser beam is created Snow and Avalanche...
    732 bytes (129 words) - 12:38, 23 April 2024
  • Thumbnail for Optical cavity
    mirrors is larger than in any other cavity design. This prevents amplified spontaneous emission and is important for designing high power amplifiers with good...
    18 KB (2,331 words) - 23:01, 12 October 2024
  • Thumbnail for Active laser medium
    {ep}}~} are the same for stimulated emission, and   1 τ   {\displaystyle ~{\frac {1}{\tau }}~} is rate of the spontaneous decay of the upper level. Then,...
    9 KB (1,589 words) - 07:57, 3 December 2023
  • Thumbnail for Excimer laser
    excited compound can release its excess energy by undergoing spontaneous or stimulated emission, resulting in a strongly repulsive ground state molecule which...
    21 KB (2,724 words) - 20:09, 25 August 2024
  • Thumbnail for Laser science
    for the absorption, spontaneous emission, and stimulated emission of electromagnetic radiation. The existence of stimulated emission was confirmed in 1928...
    5 KB (549 words) - 08:10, 3 October 2024
  • Thumbnail for Spectroscopy
    portion. Emission spectroscopy: Emission indicates that radiative energy is released by the material. A material's blackbody spectrum is a spontaneous emission...
    42 KB (4,615 words) - 23:18, 18 October 2024
  • pass through the gain medium. The emitted radiation, based on amplified spontaneous emission, has relatively low spatial coherence. The line is mostly Doppler...
    10 KB (1,076 words) - 09:42, 28 February 2024
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    in the form of an emitted photon is generated. This is spontaneous emission. Stimulated emission can be produced when the process is continued and further...
    52 KB (6,458 words) - 10:19, 27 September 2024
  • of population might support some form of coherent emission analogous to amplified spontaneous emission (ASE) in laser physics. If the physical dimensions...
    15 KB (1,973 words) - 15:15, 28 December 2023
  • gain medium increases as the medium is pumped. Due to losses from spontaneous emission and other processes, after a certain time the stored energy will...
    12 KB (1,715 words) - 20:21, 21 April 2024
  • avalanche photodiode APM – additive-pulse mode locking ASE – amplified spontaneous emission ATD – above-threshold dissociation ATI – above-threshold ionization...
    5 KB (494 words) - 12:56, 27 October 2023
  • Thumbnail for Titanium-sapphire laser
    the beam, thus increasing beam quality and cutting off some amplified spontaneous emission and to completely deplete the inversion in the gain medium....
    13 KB (1,504 words) - 01:50, 24 May 2024
  • Thumbnail for Optical parametric amplifier
    per mm for BBO compared to Ti:Sa and, more importantly, lower amplified spontaneous emission allows for higher overall gain. Interlacing compressors and...
    10 KB (1,268 words) - 10:39, 17 August 2024
  • Thumbnail for Doppler cooling
    is the temperature associated with the momentum gained from the spontaneous emission of a photon. The Doppler limit has been verified with a gas of metastable...
    19 KB (2,463 words) - 19:47, 7 August 2023
  • Thumbnail for Laser construction
    medium, produced by spontaneous emission, is reflected by the mirrors back into the medium, where it may be amplified by stimulated emission. The light may...
    6 KB (767 words) - 04:12, 25 October 2024
  • safely introduced to the gain medium and amplified by a factor of a million or more. Finally, the amplified laser pulse is recompressed back to the original...
    18 KB (2,157 words) - 18:08, 15 July 2024
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    Ruby Ti-sapphire X-ray laser Laser physics Active laser medium Amplified spontaneous emission Continuous wave Laser ablation Laser linewidth Lasing threshold...
    47 KB (6,956 words) - 12:32, 18 September 2024
  • higher energy level by the absorption of laser light followed by spontaneous emission of light. It was first reported by Zare and coworkers in 1968. LIF...
    6 KB (721 words) - 17:05, 14 September 2023
  • wavelength range centered at 800 nm). The second factor to determine a laser's emission frequencies is the optical cavity (or resonant cavity) of the laser. In...
    27 KB (3,842 words) - 01:08, 14 July 2024
  • Thumbnail for Compact disc
    Ruby Ti-sapphire X-ray laser Laser physics Active laser medium Amplified spontaneous emission Continuous wave Laser ablation Laser linewidth Lasing threshold...
    44 KB (8,646 words) - 18:37, 21 October 2024