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... with each other in the far field to create the spiral interference pattern, as shown in Fig. 4(c), where an l # 3 OAM beam interferes with the Gaussian reference beam to create the signature spiral pattern with three arms. Since no free-space optical component is involved here, and the two beams, ge ...
... with each other in the far field to create the spiral interference pattern, as shown in Fig. 4(c), where an l # 3 OAM beam interferes with the Gaussian reference beam to create the signature spiral pattern with three arms. Since no free-space optical component is involved here, and the two beams, ge ...
Coherent population trapping resonances at lower atomic
... absorption of the probe beam on the basis of the simple model of the nonclosed L-system (Fig. 1), where states |1ñ, |2ñ and |3ñ correspond to levels 6S1/2(F = 3), 6S1/2(F = 4) and 6P3/2(F¢ = 3) (Fig. 2) with the exception of three indicated exit magnetic sublevels 6S1/2(F = 4, m = ±4) and 6S1/2(F = ...
... absorption of the probe beam on the basis of the simple model of the nonclosed L-system (Fig. 1), where states |1ñ, |2ñ and |3ñ correspond to levels 6S1/2(F = 3), 6S1/2(F = 4) and 6P3/2(F¢ = 3) (Fig. 2) with the exception of three indicated exit magnetic sublevels 6S1/2(F = 4, m = ±4) and 6S1/2(F = ...
Three-dimensional imaging of a phase object from a single sample... Chien-Chun Chen, Huaidong Jiang, Lu Rong,
... was developed, termed “coherent diffraction imaging”, “lensless imaging” or “coherent diffraction microscopy,”1 in which the diffraction pattern of a noncrystalline specimen was first measured and then directly phased to obtain an image. The well-known phase problem was solved by oversampling the di ...
... was developed, termed “coherent diffraction imaging”, “lensless imaging” or “coherent diffraction microscopy,”1 in which the diffraction pattern of a noncrystalline specimen was first measured and then directly phased to obtain an image. The well-known phase problem was solved by oversampling the di ...
Accelerating Light Beams along Arbitrary Convex
... and x ¼ b½ekz 1, vs propagation distance z. The simulated and the measured widths are in good agreement. The peak-intensity feature for x ¼ a5 z5 is nonbroadening and even narrows, up to 30 Rayleigh lengths of propagation, at which point it abruptly starts diffracting. In the supplemental materi ...
... and x ¼ b½ekz 1, vs propagation distance z. The simulated and the measured widths are in good agreement. The peak-intensity feature for x ¼ a5 z5 is nonbroadening and even narrows, up to 30 Rayleigh lengths of propagation, at which point it abruptly starts diffracting. In the supplemental materi ...
slac memorandum - Stanford Synchrotron Radiation Lightsource
... This memo describes our review of the SLM ray traces [2,3]. There were a few cases in which scattered radiation trajectories do not encounter the required quantity of shielding. These cases, and the modifications proposed to correct them, are discussed in the results section below. Radiation Safety ...
... This memo describes our review of the SLM ray traces [2,3]. There were a few cases in which scattered radiation trajectories do not encounter the required quantity of shielding. These cases, and the modifications proposed to correct them, are discussed in the results section below. Radiation Safety ...
\ A/58
... are used to control the thermal conductivity of the recording layer 16. The upper and loWer dielectric layers 18 and 14 thus include materials such as silicon nitride, silicon oxide, Zinc sul?de-silicon dioxide, titanium oxide or carbide. The compact disc is shone With a laser light beam 26 from a l ...
... are used to control the thermal conductivity of the recording layer 16. The upper and loWer dielectric layers 18 and 14 thus include materials such as silicon nitride, silicon oxide, Zinc sul?de-silicon dioxide, titanium oxide or carbide. The compact disc is shone With a laser light beam 26 from a l ...
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... orientation, which then promotes formation of self-assembled linear structures directed along the beam scanning direction. These structures are then shaped into desired patterns via continuous steering of the laser beam with intensity above a certain threshold value (Fig. 1a– c), as described in det ...
... orientation, which then promotes formation of self-assembled linear structures directed along the beam scanning direction. These structures are then shaped into desired patterns via continuous steering of the laser beam with intensity above a certain threshold value (Fig. 1a– c), as described in det ...
Laser beam profiler
A laser beam profiler captures, displays, and records the spatial intensity profile of a laser beam at a particular plane transverse to the beam propagation path. Since there are many types of lasers — ultraviolet, visible, infrared, continuous wave, pulsed, high-power, low-power — there is an assortment of instrumentation for measuring laser beam profiles. No single laser beam profiler can handle every power level, pulse duration, repetition rate, wavelength, and beam size.