2010
DOI: 10.1016/j.optcom.2010.07.030
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Intensity control of the focal spot by vectorial beam shaping

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Cited by 24 publications
(11 citation statements)
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“…Ideally, a flat-top beam [101,[103][104][105][106][107][108][109][110][111][112][113][114][115][116]] is a light beam possessing an intensity transverse profile mostly flat in the central part and sharply decaying at its edges, at variance with the Gaussian profile of the fundamental TEM 00 mode. Flat-top beams are useful in a wide variety of laser applications where one needs a uniform intensity over a fixed area, such as in optical processing [101,117], laser-driven acceleration of particles [118,119], optical trapping [120] or gravitational-waves detectors [121].…”
Section: A Super-gaussian Conical Refraction Beammentioning
confidence: 99%
“…Ideally, a flat-top beam [101,[103][104][105][106][107][108][109][110][111][112][113][114][115][116]] is a light beam possessing an intensity transverse profile mostly flat in the central part and sharply decaying at its edges, at variance with the Gaussian profile of the fundamental TEM 00 mode. Flat-top beams are useful in a wide variety of laser applications where one needs a uniform intensity over a fixed area, such as in optical processing [101,117], laser-driven acceleration of particles [118,119], optical trapping [120] or gravitational-waves detectors [121].…”
Section: A Super-gaussian Conical Refraction Beammentioning
confidence: 99%
“…Since η mi < 1 [15], a small amount of energy leakage may still occur outside S C . Because of that, the exact focused electric fields were also calculated by Debye-Wolf integration using Chirp Z-Transform [19] after enforcing a hard limit at the edge of the entrance pupil. The prescribed focal intensity functions for the needle, tube and bubble were…”
Section: The Inverse Problemmentioning
confidence: 99%
“…The Debye-Wolf diffraction theory 1 is commonly used for the direct calculation of the focused field, as well as for inverse problems. [2][3][4] As an alternative to the Debye-Wolf theory, the vector multipole theory of Sheppard and Török 5 can also be used to calculate the focused field of a high NA lens. It is based on rigorous solutions of the free-space vector Helmholtz equation, hence the focused field is expanded in terms of well-understood functions with a relatively simple analytical form.…”
Section: Introductionmentioning
confidence: 99%