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Two-photon absorption photocurrent in p-i-n diode embedded silicon microdisk resonators
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View: Figures


Image of FIG. 1.
FIG. 1.

(a) Schematic cross-section of the p-i-n diode embedded microdisk resonator with . (b) Optical micrograph of the fabricated p-i-n diode embedded silicon microdisk resonator. The dark-gray disk is the silicon microdisk. The light-color patterns are the electrodes. (c) Schematic of the three lowest-order radial modes field intensity distributions inside the p-i-n diode.

Image of FIG. 2.
FIG. 2.

Measured optical transmission spectra for microdisks with (a) , (b) (inset: zoom-in view of the and resonances), and (c) . Measured photocurrent spectra for microdisks with (d) , (e) , and (f) .

Image of FIG. 3.
FIG. 3.

Measured mode normalized transmission spectra in microdisks with (a) and (b) upon coupled power from 10 to . Corresponding photocurrent spectra in microdisks with (c) and (d) . Peak photocurrent as a function of coupled power in microdisks with (e) and (f) upon reverse bias of 0 V (open circles), 5 V (open squares), and 10 V (solid diamonds). The lines are the data fits for the 0 V bias.

Image of FIG. 4.
FIG. 4.

Measured curves upon various coupled powers for a wavelength of red-side of the resonance wavelength in microdisk. (b) Measured generated electrical power upon 0.4-V forward-bias for four selected wavelengths in the vicinity of the resonance wavelength. Inset: the measured resonances upon and coupled powers. Symbols mark the selected wavelengths (circle: −5 pm, square: −1 pm, diamond: , and triangle: detuning).


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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Two-photon absorption photocurrent in p-i-n diode embedded silicon microdisk resonators