8 Light of wavelength 590 nm is incident normally on a surface, as illustrated in Fig.8.1.light surface↓wavelength 590 nm Fig.8.1The power of the light is 3.2mW. The light is completely absorbed by the surface.(a)Calculate the number of photons incident on the surface in 1.0s.number =...
1319nm laser at two ends, generating frequency-doubling light with the wavelength 660nm through KTP crystals, and forming laser light with the wavelengths 660nm and 1319nm; at the right path, the pump light passes through a 808nm output mirror and the 808nm laser light is directly outputted...
The H-alpha spectral line has a wavelength of 656 nm in the laboratory. Light of this wavelength is incident at a diffraction grating. The first order maximum is produced at an angle of 36.0^(° ) .The same spectral line from a receding star is observed with the same diffraction grating...
Ultraviolet light of wavelength 350 nm and intensity 1.00 W/m2 is directed at a potassium surface.The maximum kinetic energy of the photoelectrons is()
The present invention relates to a powder which comprises, in addition to a polymer to an absorber, the use of this powder for layerwise production of moldings by means of a laser having a wavelength between 100 and 3000 nm, and moldings with this method, prepared from this powder. The mo...
百度试题 结果1 题目 Ultraviolet light of wavelength 350 nm and intensity 1.00 W/m2 is directed at a potassium surface. The maximum kinetic energy of the photoelectrons is ( ) 相关知识点: 试题来源: 解析 3.5 eV 反馈 收藏
The 660 nm LED light source delivered in a sequential pulsing mode was used as it is a deep penetrating well-absorbed wavelength that falls into the absorption peaks of cytochrome c oxidase, the chromophore thought to be responsible for LED effects (Karu and Kolyakov, 2005; Karu et al., ...
A 1064 nm, 1085 nm Dual-Wavelength Nd:YVO4 Laser Using Fabry–Perot Filters as Output Couplers J. Chen, G. X. Cai, Z. P. Cai, and J. M. Dawes, “A 1064 nm, 1085 nm dual-wavelength Nd:YVO4 laser using Fabry–Perot filters as output couplers,” IEEE Photon. Technol....
NMLONG-WAVELENGTHHIGH-POWERDISSIPATIVEthulium-dopedfiberLASERWedemonstratea2080nmlong-wavelengthmode-lockedthulium(Tm)-dopedfiberlaseroperatinginthedissipativesolitonresonance(DSR)regime.Thecompactall-fiberdumbbell-shapedlaserissimplyconstructedbya50/50fiberloopmirror(FLM);a10/90FLM;andapieceoflarge-gainTm-doped...
Norminal Wavelength 900-1310nm 450-750nm 450-650nm 1300-1800nm Efficiency(avo pol) ≥70% at 1310nm ≥870% at 633nm ≥88% at 532nm ≥90% at 1550nm Spatial Frequency 250±0.5lines/mm 1250±0.5lines/mm 1700±0.5lines/mm 600±0.5lines/mm ...