Effect of Primary Spherical Aberration on Focusing Field of Cylindrical-Vector Bessel-Gaussian Beams

Yong, 刘勇 Liu; Jiabi, 陈家璧 Chen

doi:10.3788/aos20092907.1996

光学学报

2009

DOI: 10.3788/aos20092907.1996

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Effect of Primary Spherical Aberration on Focusing Field of Cylindrical-Vector Bessel-Gaussian Beams

刘勇 Liu Yong¹,

陈家璧 Chen Jiabi²

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2011

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Longitudinally polarized subwavelength beam generated by focusing radially modulated Bessel-Gaussian beam

Yu¹,

Chen²,

Yan³

et al. 2011

Acta Phys. Sin.

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Longitudinally polarized subwavelength beams have found many applications such as particle acceleration, single molecule dipole detection, second harmonic generation imaging, longitudinally polarization confocal microscopy. We present a radially modulated Bessel-Gaussian beam model which produces longitudinally polarized beams with high purity after being focused by high numerical aperture objective. Based on the vector diffraction theory, the electric field intensity distribution, magnetic field intensity distribution and energy flux density near the focal plane are numerically simulated. The result shows that the full-width at half-maximum is as small as 0.4λ. The method does not require a physical annulus or annular phase filter and it features high energy efficiency, high resolution, thus improving application performances.

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Longitudinally polarized subwavelength beam generated by focusing radially modulated Bessel-Gaussian beam

Yu¹,

Chen²,

Yan³

et al. 2011

Acta Phys. Sin.

View full text Add to dashboard Cite

show abstract

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Effect of Primary Spherical Aberration on Focusing Field of Cylindrical-Vector Bessel-Gaussian Beams

Cited by 1 publication

References 0 publications

Longitudinally polarized subwavelength beam generated by focusing radially modulated Bessel-Gaussian beam

Longitudinally polarized subwavelength beam generated by focusing radially modulated Bessel-Gaussian beam

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