Optical Traps

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Optical trapping often is used to evaluate nanometer-size systems by introducing up to hundreds of milliwatts of laser power into the focus. The resulting power intensity can raise local temperatures and induce unwanted physical, chemical, or biological reactions in the system of interest. 

Syoji Ito and Hiroshi Miyasaka, together with a team at Osaka University in Japan, have applied fluorescence correlation spectroscopy to investigate the relationship between temperature rise and incident laser power under optical trapping conditions.


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