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Integrated plasmonic lens photodetector
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View: Figures


Image of FIG. 1.
FIG. 1.

SEM micrograph of the planar integrated plasmonic lens MSM PD taken with a stage tilt of approximately 45° in respect to the device normal. The incident laser beam is directed at the device with normal incidence and is centered about the device aperture.

Image of FIG. 2.
FIG. 2.

Photocurrent time response to 100 fs 830 nm laser pulse of device with integrated plasmonic lens (left panel) and device without plasmonic lens (right panel). The ordinate axis scale is identical for both devices showing increased peak response for the device with integrated lens. Both devices display identical FWHM and fall time.

Image of FIG. 3.
FIG. 3.

(Left) Photocurrent vs wavelength for a laser spot centered over the active region of both PD devices. The Ti:sapphire laser was tuned in 10 nm increments and was pulsed at 75 MHz with a pulse width of 100 fs. The reported photocurrents are time averaged. (Right) Absorption cross section vs wavelength as simulated using MEEP for both MSMs with and without corrugations.


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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Integrated plasmonic lens photodetector