less light enters the objective and the illumination becomes weaker. This can be a useful way of adjusting laser intensity and also improves the uniformity of the illumination, as the center of the beam is the most uniform. Intensity can also be adjusted by interposing neutral density filters in...
Ruff, D.E. Pritchard: Diffraction of atoms by light: The near-resonant Kapitza-Dirac effect. Phys. Rev. Lett. 59, 827 (1986) Article ADS Google Scholar O. Carnal, J. Mlynek: Young’s double-slit experiment with atoms: A simple atom interferometer. Phys. Rev. Lett. 66, 2689 (1991...
Fig. 3.Micromachining of femtosecond laser interference via various interference approaches. (a1), (b1), Optical systems for interference via coaxial beams split by a spatial light modulator (SLM) and Michelson interferometer split by a splitting lens, respectively. (a2), (b2) Simulation of the ...
摘要: The following topics are discussed: nonlinear interaction of light with matter, laser operation and design, fluctuations in lasers and matter near pointsof instability, and quantum communications theory.关键词: engineering lasers design operation instability optical properties physical properties 420...
Light alloy valorization by excimer laser surface nitriding The excimer laser nitriding process reported is developed to enhance mechanical properties of aluminum alloys. An excimer laser beam is focused onto the al... E Sicard,C Andreazza-Vignolle,C Boulmer-Leborgne,... - 《Proceedings of Spie ...
Bigo, "Transmission of 256 wavelength-division and polarization-division multiplexed channels at 42.7 Gb/s (10.2 Tb/s capacity) over 3 × 100 km of TeraLight fiber," in Optical Fiber Conference (OFC), 2002. "Press Release: NRO GeoLITE Satellite Successfully Launched". {http://cartome.org/...
Transparent hard materials, including diamond, sapphire, and glass, are a special group of materials that allow light to pass through without energy loss from scattering or absorption. Excellent properties, such as high hardness, high chemical stability, and wide-band transparency, make these transpar...
[6,7,8,9]. To study femtosecond dynamics with element sensitivity using a resonant pump-resonant probe approach [10] or a nonlinear wave-mixing scheme [11], the light source has to meet even more stringent requirements. Ideally, a FEL should produce tunable, multicolor, near transform-...
A fiber laser etcher uses the light beam as the medium, which features with good heat dissipation, high power, and fast speed. It uses an air-cooled laser diode as a pump source, which enables pulsed and continuous engraving, and is easy to use. However, do you know how many parts &...
The same procedure was applied in the contralateral quadrant with a placebo light. A visual analogue scale was used to assess pain 5min, 6h, 24h, 48h, and 72h after placement of the separators. Maximum pain occurred 6–24h after placement of the elastic separators. Pain intensity was ...