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

36 Citations (Scopus)

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
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
Publication status	Published - 16 Dec 2013

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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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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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DO - 10.1364/OE.21.030492

M3 - Article

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VL - 21

SP - 30492

EP - 30499

JO - Optics Express

JF - Optics Express

IS - 25

ER -

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

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