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关键字：intensity

  • Simulation study on an improved frequency-doubled triangular-sha... ... . The basic principle is to make the expression of optical intensity approximately equal to the Fourier expansion of idea triangular-shaped waveform. A detailed expression of the final optical intensity is given by theory and then verified by simulation. ...
  • Influence of dynamic parameters on interacting efficiency betwee... We simulate the integrated effects of atmospheric aberration, atmospheric turbulence, thermal blooming, random jitter of laser's intensity and phase, speed of wind, direction of wind, absorption of air, kinetic cooling of CO2 and N2, speed of target, ...
  • Piezoelectric strain coefficient measurement based on elasto-opt... ... approximation. Results show that there is a quadratic polynomial relationship between the arccosine reciprocal value of light intensity outputted from polarization analyzer and the reciprocal value of applied voltage for the PZT. Using this formula, the ...
  • Off-axis Fresnel numbers in laser systems ... C1+C2. The Rayleigh-Sommerfeld nonparaxial diffraction formula states that a simple analytical formula for the nonparaxial intensity distribution after a circular aperture can be obtained. Theoretical derivations and numerical calculations reveal that the ...
  • The all-diode-pumped laser system POLARIS-an experimentalist’s t... ... of 5×1012 for the ASE, which is achieved using a so-called double chirped-pulse amplification scheme and cross-polarized wave generation pulse cleaning. By tightly focusing, the peak intensity exceeds 3.5×1020 W cm-2. These parameters predestine POL
  • Theoretical analysis of a quasi-Bessel beam for laser ablation ... . In this paper, the characterizations of QBBs formed by the ideal axicon and oblate-tip axicon are described. Strong on-axis intensity oscillations occur due to interference between the QBB and the refracted beam by the oblate tip. Using the axicon for ...
  • A staggered dual Mott insulator in a 3D optical lattice ... spatial separation of 133 nm. Furthermore, we calculate the tunneling and intra- and interspecies interactions of rubidium and ytterbium atoms as a function of light intensity, and find that the mixture of quantum degenerate gases in optical lattices can
  • Research of bright pupil effect based on Chinese human eye model ... ° field of view, the spot diagram of emergent light is also presented. With the pupil diameters of 3–8 mm, the intensity distributions formed by emergent light are calculated. The optical model of bright pupil effect based on Chinese human eye provides a ...
  • Fiber chromatic dispersion measurement with improved measurement... ... optical fibers is proposed based on the use of chirped intensity-modulated signals. Unlike the conventional method, the proposed method ... of optical fibers caused by the residual chirp of intensity modulation, which not only eliminates the chirp error but ...
  • Recent progress in attenuation counterpropagating optical phase-... ... in advanced radar front-ends. Such applications require a large dynamic range that is beyond the reach of conventional intensity modulation–direct detection fiber-optic links. A coherent fiber-optic link employing an optical phase-locked loop (OPLL) ...