151 research outputs found
Optical tweezers with enhanced efficiency based on laser-structured substrates
We present an optical nanotrapping setup that exhibits enhanced efficiency,
based on localized plasmonic fields around sharp metallic features. The
substrates consist of laser-structured silicon wafers with quasi-ordered
microspikes on the surface, coated with a thin silver layer. The resulting
optical traps show orders of magnitude enhancement of the trapping force and
the effective quality factor
Geometrical effect characterization of femtosecond-laser manufactured glass microfluidic chips based on optical manipulation of submicroparticles
Role of wavelength and pulse duration in laser ablation: implications to beam delivery, surface modifications, and diagnostic techniques
The Practical Management of Head Injuries. By John M. Potter. 2nd edition. London: Lloyd-Luke. 1964. Pp. 92. Price 15 s
Headache and Other Head Pain. By Harold G. Wolff. Second Edition. New York: New York Oxford University Press. 1963. Pp. 773. Price £6.
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