Hollow Bessel-like beam as an optical guide for a stream of microscopic particles

Niko Eckerskorn; Li Li; Richard A. Kirian; Jochen Küpper; Daniel P. DePonte; Wieslaw Krolikowski; Woei M. Lee; Henry N. Chapman; Andrei V. Rode

doi:10.1364/OE.21.030492

Hollow Bessel-like beam as an optical guide for a stream of microscopic particles

Niko Eckerskorn, Li Li, Richard A. Kirian, Jochen Küpper, Daniel P. DePonte, Wieslaw Krolikowski, Woei M. Lee, Henry N. Chapman, Andrei V. Rode

Research output: Contribution to journal › Article › peer-review

35 Scopus citations

Abstract

Current aerosol sample injection methods for coherent x-ray morphology suffer from excessive sample consumption due to the dispersion of the aerosol. To remedy this we propose here a high aspect ratio optical funnel by using a hollow Bessel-like beam with variable divergence, which may reduce sample consumption significantly. We present estimated optical forces exerted on the particles in the transverse plane, depending on various experimental conditions. We show that light pressure imposed by a funnel formed with 4.2 W continuous wave laser is sufficient to divert a stream of 2 μm polystyrene particles travelling ∼50 m/s by ∼1.5 × 10³ rad.

Original language	English (US)
Pages (from-to)	30492-30499
Number of pages	8
Journal	Optics Express
Volume	21
Issue number	25
DOIs	https://doi.org/10.1364/OE.21.030492
State	Published - Dec 16 2013
Externally published	Yes

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics

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title = "Hollow Bessel-like beam as an optical guide for a stream of microscopic particles",

abstract = "Current aerosol sample injection methods for coherent x-ray morphology suffer from excessive sample consumption due to the dispersion of the aerosol. To remedy this we propose here a high aspect ratio optical funnel by using a hollow Bessel-like beam with variable divergence, which may reduce sample consumption significantly. We present estimated optical forces exerted on the particles in the transverse plane, depending on various experimental conditions. We show that light pressure imposed by a funnel formed with 4.2 W continuous wave laser is sufficient to divert a stream of 2 μm polystyrene particles travelling ∼50 m/s by ∼1.5 × 103 rad.",

author = "Niko Eckerskorn and Li Li and Kirian, {Richard A.} and Jochen K{\"u}pper and DePonte, {Daniel P.} and Wieslaw Krolikowski and Lee, {Woei M.} and Chapman, {Henry N.} and Rode, {Andrei V.}",

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T1 - Hollow Bessel-like beam as an optical guide for a stream of microscopic particles

AU - Eckerskorn, Niko

AU - Li, Li

AU - Kirian, Richard A.

AU - Küpper, Jochen

AU - DePonte, Daniel P.

AU - Krolikowski, Wieslaw

AU - Lee, Woei M.

AU - Chapman, Henry N.

AU - Rode, Andrei V.

PY - 2013/12/16

Y1 - 2013/12/16

N2 - Current aerosol sample injection methods for coherent x-ray morphology suffer from excessive sample consumption due to the dispersion of the aerosol. To remedy this we propose here a high aspect ratio optical funnel by using a hollow Bessel-like beam with variable divergence, which may reduce sample consumption significantly. We present estimated optical forces exerted on the particles in the transverse plane, depending on various experimental conditions. We show that light pressure imposed by a funnel formed with 4.2 W continuous wave laser is sufficient to divert a stream of 2 μm polystyrene particles travelling ∼50 m/s by ∼1.5 × 103 rad.

AB - Current aerosol sample injection methods for coherent x-ray morphology suffer from excessive sample consumption due to the dispersion of the aerosol. To remedy this we propose here a high aspect ratio optical funnel by using a hollow Bessel-like beam with variable divergence, which may reduce sample consumption significantly. We present estimated optical forces exerted on the particles in the transverse plane, depending on various experimental conditions. We show that light pressure imposed by a funnel formed with 4.2 W continuous wave laser is sufficient to divert a stream of 2 μm polystyrene particles travelling ∼50 m/s by ∼1.5 × 103 rad.

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Hollow Bessel-like beam as an optical guide for a stream of microscopic particles

Abstract

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