Room Temperature Plasmon Laser (IMAGE)

University of California - Berkeley

Room Temperature Plasmon Laser

Caption

UC Berkeley researchers have developed a plasmon laser that can generate sub-diffraction light at room temperature. On the left is a schematic showing a cadmium sulfide (CdS) square atop a silver (Ag) substrate separated by a 5 nanometer gap of magnesium fluoride (MgF2). The cadmium sulfide square measures 45 nanometers thick and 1 micrometer long. The most intense electric fields of the device reside in the magnesium fluorid gap. On the right is a scanning electron microscope image of the plasmon laser.

Credit

Renmin Ma and Rupert Oulton, UC Berkeley

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