We demonstrate for the first time, a uniform low temperature (<250 °C) process for fabricating both high-confinement thick and low-confinement thin ultra-low loss Silicon nitride waveguides.

We demonstrate ultra-sensitive photothermal microscopy with whispering gallery mode microtoroid resonators, detecting single 5 nm quantum dots with SNR > 10⁴ and achieving a minimum heat dissipation detection of 0.75 pW, which is below that from single dye molecules.

A high-brightness electrically pumped terahertz quantum cascade surface emitting laser empowered by a phase-engineered photonic crystal cavity.

We propose and demonstrate an exciton-harvesting strategy in low-dimensional halides exposed to ionizing radiation, which enhances both scintillation efficiency and charged particle discrimination capability.