نتایج جستجو برای: talbot effect
تعداد نتایج: 1642315 فیلتر نتایج به سال:
Investigation on the plasmon Talbot effect of finite-sized periodic arrays of metallic nanoapertures
We present an in-depth and systematical investigation on the plasmon Talbot effect of finite-sized two-dimensional (2D) periodic metallic nanoaperture arrays. The nanoaperture shapes, fill factor, lattice distribution, array size, film thickness, material property and polarization state of the incident light are considered, and the inherent influencing rules are summarized via the three-dimensi...
The temporal Talbot effect refers to the periodic revivals of a pulse train propagating in dispersive medium and is analog spatial with group-velocity dispersion time replacing diffraction space. Because typically large lengths, this has been observed date only single-mode fibers, rather than freely fields bulk media. Here we demonstrate for first time, best our knowledge, free space by employi...
A new self-consistency condition in pulsed lasers with strong intracavity dispersion imposes dispersion modes with specific cavity-length dependent pulse rates, utilizing pulse-train self-imaging properties of a temporal Talbot effect. We give an experimental demonstration of such a laser operation, using a long fiber cavity. We also demonstrate temporal Talbot imaging of a train of short pulse...
Talbot imaging is a well-known effect that causes sinusoidal patterns to be reimaged by diffraction with characteristic period that varies inversely with both wavelength and the square of the spatial frequency. This effect is treated using the Fresnel diffraction integral for fields with sinusoidal ripples in amplitude or phase. The periodic nature is demonstrated and explained, and a sinusoida...
In the present work a computer simulation to obtain the self-imaging position (Talbot effect), of a product of scaled cosenoidal functions, is developed. Also, for such resulting functions is shown that they have a fractal behavior, through the calculation of the fractal dimension. The self-images of each cosenoidal component are obtained as well as the self-images of the product, and it is sho...
چکیده ندارد.
An interesting feature of light fields is a phase anomaly, which occurs on the optical axis when light is converging as in a focal spot. Since in Talbot images the light is periodically confined in both transverse and axial directions, it remains an open question whether at all and to which extent the phase in the Talbot images sustains an analogous phase anomaly. Here, we investigate experimen...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید