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We demonstrate free-space coupling to microtoroids using one objective to excite and collect scattered resonant light. We achieve Q-factors > 108 and perform sensing with an SNR > 26 dB.
We developed a geometric approach to identify highly anisotropic materials. This leads to the discovery of giant anisotropy of As2S3, enabling the record-small quarter-wave plate.
A time-domain excitation strategy for stimulated Raman scattering was achieved by manipulating vibrational wave packet interference. The new method enables simultaneous sub-mM level sensitivity and natural-linewidth-limit Raman spectra.
We have introduced Te-based all-2D heterojunctions as optically controlled terahertz modulators to significantly promote the device performances and elaborated their charge dynamics driven by substrate effect through first-principles calculations.
We explore an open trajectory linking two infinite points having the same asymptotic eigenmodes, demonstrating that this platform enables high-efficiency chiral transmission, with each eigenmode localized in a single waveguide.
We theoretically demonstrate a novel Stimulated Raman Scattering spectroscopy with hyper spectral resolution and high-speed spectral acquisition using offset-phase controlled fs-pulse bursts.
A holographic camera for acquiring high-fidelity holograms of real 3D scenes based on a liquid camera and an end-to-end physical model-driven network is proposed.
We have theoretically and experimentally proven the potential of multi-junction VCSELs to achieve high electro-optical conversion efficiency, providing insights for the further development and application of high efficiency semiconductor lasers.