Optical injector of particles for X-ray diffractive imaging

Richard Kirian, Niko Eckerskorn, Andrei V. Rode, Jochen Kupper, Daniel P. Deponte, Henry N. Chapman

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Motivated by the need for new single particle sample delivery methods to be used with our coherent diffractive imaging program [1-4] we have developed an optical pipeline [5] to produce a highly collimated stream of particles in either gaseous or vacuum environments. We present first results of our efforts to guide particles with micron-size precision in gaseous and vacuum environments using a first order quasi-Bessel beam operating either independently or collinear with a particle laden gas stream produced by an aerodynamic lens. The centimeter long, low divergence, optical pipeline is formed by a first order Laguerre-Gaussian beam imaged trough an axicon. When used in conjunction with an aerodynamic lens the optical forces assist the migration of particles to the centerline of the gas flow. This produces a higher particle number density and therefore an easier target to hit when probing with a Free Electron Laser (FEL) or other pulsed source. We present estimated optical forces exerted on the particles and the stiffness of trapping in the transverse plane, both depending on the particle size, optical reflectance, laser power, and background-gas pressure.

Original languageEnglish (US)
Title of host publication2013 Conference on Lasers and Electro-Optics Europe and International Quantum Electronics Conference, CLEO/Europe-IQEC 2013
PublisherIEEE Computer Society
DOIs
StatePublished - 2013
Externally publishedYes
Event2013 Conference on Lasers and Electro-Optics Europe and International Quantum Electronics Conference, CLEO/Europe-IQEC 2013 - Munich, Germany
Duration: May 12 2013May 16 2013

Other

Other2013 Conference on Lasers and Electro-Optics Europe and International Quantum Electronics Conference, CLEO/Europe-IQEC 2013
CountryGermany
CityMunich
Period5/12/135/16/13

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ASJC Scopus subject areas

  • Electrical and Electronic Engineering

Cite this

Kirian, R., Eckerskorn, N., Rode, A. V., Kupper, J., Deponte, D. P., & Chapman, H. N. (2013). Optical injector of particles for X-ray diffractive imaging. In 2013 Conference on Lasers and Electro-Optics Europe and International Quantum Electronics Conference, CLEO/Europe-IQEC 2013 [6801521] IEEE Computer Society. https://doi.org/10.1109/CLEOE-IQEC.2013.6801521