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Towards VCSEL-based integrated optical traps for biomedical applications

Towards VCSEL-based integrated optical traps for biomedical applications

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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.

Inspec keywords: biological techniques; microlenses; radiation pressure; surface emitting lasers

Other keywords: biomedical applications; 9 mW; 10 micron; manipulation systems; photoresist microlenses; near-infrared emission; integrated optical traps; miniaturize optical trapping; VCSEL

Subjects: Micro-optical devices and technology; Laser resonators and cavities; Semiconductor lasers; Biophysical instrumentation and techniques; Medical physics and biomedical engineering; Micro-optical devices and technology; Laser resonators and cavities

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