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We analytically derive the energy-bandwidth limit for electro-optic modulators based on intra-cavity index modulation, and propose a dual cavity modulator using coupling modulation to simultaneously achieve high bandwidth (80 GHz) and ultra-low energy-per-bit (0.26 aJ).
We demonstrate monolithic fabrication of 3-D photonic structures on flexible substrates. Strain-optical coupling behavior of the flexible devices is quantified through in-situ optical measurements and is successfully accounted for using nanomechanical finite element analysis.
We propose a mid-infrared spectroscopic technique capable of detecting a single small molecule without using cryogenically cooled detectors. Such record sensitivity is attained by leveraging dramatically amplified photothermal effects in a pump-probe doubly resonant cavity.
We report the fabrication and characterization of high-index-contrast AssSe3 chalcogenide glass waveguides on silicon. Guided mode optical transmission are measured at 5.27 ?m mid-infrared wavelength with low optical loss.
We propose a mid-infrared spectroscopic technique capable of detecting a single small molecule without using cryogenically cooled detectors. Such record sensitivity is attained by leveraging dramatically amplified photothermal effects in a pump-probe doubly resonant cavity.
MoS 2 nanorods were successfully synthesized via hydrothermal method by adding sillicontungstic acid as an additive. The products were characterized by X-ray powder diffraction (XRD), X-ray photoelectron spectrum (XPS) and field-emission scanning electron microscopy (FESEM). XRD pattern result indicated that the as-prepared sample can be indexed to a mixture of hexagonal and rhombohedral phase...
Based on the basic principles of the micrometeorology of atmospheric boundary layers and vegetation canopy, a numerical model of the interaction between forest ecosystems and atmospheric boundary layers was developed. The model is used to simulate the diurnal variations of heat balance in forest ecosystems, canopy temperatures, ground surface temperatures, as well as the profiles of temporal and spatial...
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