@inproceedings{4bd550c3f08f4824aeeb8cd08dfbbc3d,
title = "Dual-beam laser traps in biology and medicine: When one beam is not enough",
abstract = "Optical traps are nowadays quite ubiquitous in biophysical and biological studies. The term is often used synonymously with optical tweezers, one particular incarnation of optical traps. However, there is another kind of optical trap consisting of two non-focused, counter-propagating laser beams. This dual-beam trap predates optical tweezers by almost two decades and currently experiences a renaissance. The advantages of dual-beam traps include lower intensities on the trapped object, decoupling from imaging optics, and the possibility to trap cells and cell clusters up to 100 microns in diameter. When used for deforming cells this trap is referred to as an optical stretcher. I will review several applications of such traps in biology and medicine for the detection of cancer cells, sorting stem cells, testing light guiding properties of retinal cells and the controlled rotation of cells for single cell tomography.",
keywords = "Cell mechanics, Optical cell rotator, Optical stretcher, Optical trap, Optical tweezers, Retina optics, Tomography",
author = "Graeme Whyte and Franziska Lautenschl{\"a}ger and Moritz Kreysing and Lars Boyde and Andrew Ekpenyong and Ulysse Delabre and Kevin Chalut and Kristian Franze and Jochen Guck",
year = "2010",
month = aug,
day = "27",
doi = "10.1117/12.862928",
language = "English",
isbn = "9780819482587",
series = "Proceedings of SPIE",
publisher = "SPIE",
booktitle = "Optical Trapping and Optical Micromanipulation VII",
address = "United States",
note = "SPIE NanoScience + Engineering 2010 ; Conference date: 01-08-2010 Through 05-08-2010",
}
