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It has been half a century since the photons have been portended to supplant electrons in information transmission, storage, and processing. While spectacular successes have been achieved in optical communications and these advances are slowly working their way into the chip-scale optical interconnects, optical memories have not displaced magnetic storage and are now losing ground to the all-electronic...
We recently demonstrated orders of magnitude enhancement of two-photon absorption (2PA) in direct gap semiconductors due to intermediate state resonance enhancement for photons of very different energies. It can be expected that further enhancement of nondegenerate 2PA will be observed in quantum wells (QWs), since the intraband matrix elements do not vanish near the band center, as they do in the...
We demonstrate the design, fabrication and characterization of plasmonic enhanced silicon photo-detector for infrared light. Theoretical model, experimental results and comparison between different geometric configurations will be presented and discussed.
This paper described the first results demonstrating the Super-Ring tuning concept applied to a 40 microresonator based TTD device, operating with the Balanced SCISSOR scheme. Tunable delay up to 515ps of a 20GHz BW RF photonic signal was shown, using only two drive voltages, with SFDR over 110dB.Hz2/3 for delays up to 300ps.
Laser cooling of solids based on anti-Stokes photoluminescence was proposed in 1929 [1]. Indeed, through the light emission based on phonon-assisted anti-Stokes photoluminescence, the average photon energy emitted is larger than that for the absorbed pump photons. The difference between the emitted and absorbed photon energies is made up by the energy of each removed phonon. Since phonons represent...
We demonstrate a linearized ring assisted Mach-Zehnder interferometer (L-RAMZI) modulator in a miniature silicon device. We measure a high degree of linearization, with a Spurious Free Dynamic Range (SFDR) of 105 dB/Hz2/3 at 1GHz.
We demonstrate a tunable-delay of 154ps of a 130GHz bandwidth RF signal using silicon microresonators. To delay such high bandwidth without distortion, we delay an equivalent signal with a much smaller bandwidth (20GHz single sideband) while preserving the original signal's phase.
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