Thermal Images at the Nanoscale
Optics & Photonics Focus
Volume 5 Story 1 - 7/4/2009

Thermal nanoimage

By illuminating with a laser a surface where gold nanorods are unevenly placed, sharp temperature gradients can be created on microscopic scales. Here such gradients are measured on a 30x30 microns area. The temperature varies between 24(black) and 31 (yellow). Inset: microscope image of the same area where the nanorod density can be seen.
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Thermal nanoimage. By illuminating with a laser a surface where gold nanorods are unevenly placed, sharp temperature gradients can be created on microscopic scales. Here such gradients are measured on a 30x30 microns area. The temperature varies between 24(black) and 31 (yellow). Inset: microscope image of the same area where the nanorod density can be seen.