rolla45

What do you mean by Bessel beam?

Please tell me a beginner's definition.
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faylin
Transverse wave amplitude distribution in which the radial variation is approximately describable in terms of truncated Bessel functions; collimation for Bessel beams is sometimes considered better than for more usual polynomial-Gaussian beams.
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claire67
Pulsed Bessel beams are of particular interest for performing frequency mixing and conversion using stimulated Raman scattering (SRS).
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