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Towards VCSEL-based integrated optical traps for biomedical applications

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4 Author(s)
Kroner, A. ; Optoelectronics Dept., Univ. of Ulm, Germany ; Kardosh, I. ; Rinaldi, F. ; Michalzik, R.

A new concept to miniaturise optical trapping and manipulation systems is presented. Integrated optical traps based on top-emitting vertical-cavity surface-emitting lasers (VCSELs) with near-infrared emission in combination with photoresist microlenses were fabricated, characterised and demonstrated. Elevation and trapping of 10 μm-sized polystyrene particles in water is achieved at optical output powers as small as 9 mW.

Published in:

Electronics Letters  (Volume:42 ,  Issue: 2 )