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Experimental Techniques

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Light-Induced Processes in Optically-Tweezed Aerosol Droplets

Part of the book series: Springer Theses ((Springer Theses))

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Abstract

In these studies optical tweezers were used to isolate and manipulate individual aqueous aerosol droplets containing a range of inorganic and organic solutes. Raman and fluorescence spectroscopy were used to characterise the trapped particles as a means of studying aerosol optical and kinetic properties. In the technique of aerosol optical tweezing a laser is focussed using a microscope objective to form an optical trap within a sealed chamber. Two traps can be created in order to simultaneously manipulate a pair of droplets. Aerosol droplets are delivered to the trap from a flow generated by a medical nebuliser. Droplets from 2 to 20 μm in diameter can be trapped for a period of up to a few days.

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Notes

  1. 1.

    See Sect. 2.2.1.2 for a fuller explanation.

  2. 2.

    The Q of cavity modes will be discussed in more detail in Sect. 5.3.4.2.

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Authors and Affiliations

  1. Department of Chemistry, University of British Columbia, Main Mall 2036, Vancouver, BC, V6T 1Z1, Canada

    Kerry J. Knox

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  1. Kerry J. Knox
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Knox, K.J. (2011). Experimental Techniques. In: Light-Induced Processes in Optically-Tweezed Aerosol Droplets. Springer Theses. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-16348-7_3

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