We show that it is unreliable to determine the coupling condition of optical resonances by analyzing the extinction ratio change with wavelengths. We propose and demonstrate the unambiguous discrimina...

A two-mode squeezed microresonator-based frequency comb is demonstrated with CMOS-compatible silicon nitride integrated photonic circuits. Seventy quantum modes, in a span of 1.3 THz, are generated in...

The European X-ray Free Electron Laser facility produces extremely intense and short X-ray pulses. A diamond sensor proposed for non-invasive diagnostics of hard X-rays enables pulse-resolve...

We have advanced the heterogeneous silicon nitride photonic platform, enabling operation at the 780 nm wavelength range for rubidium sensors and other applications while remaining operable at high tem...

We report a quasi-continuously operating air waveguide, generated by high-repetition-rate patterned filamentation of femtosecond laser pulses. For repetition rates higher than the air therma...

We report an on-chip high-speed visible-band electro-optic modulator that can operate over the full visible spectrum of 400–700 nm, with a record low ${V_\pi} \cdot L$ ...

Small-sized, ultra-low phase noise photonic microwave oscillators at 10, 20, 30, and 40 GHz are demonstrated using electro-optical frequency division. At 40 GHz, a record-low, to our knowledge, phase ...

We demonstrate all-optical sympathetic cooling of a laser-trapped microsphere to sub-Kelvin temperatures, mediated by optical binding to a feedback-cooled adjacent particle. Our study opens prospects ...

Ultrafast X-ray spectroscopies require flexible X-ray properties together with high temporal and spectral resolution. Here, we demonstrate simultaneous sub-20 fs and sub-eV resolutions for pump/probe ...

We report, to our knowledge, the first dual-polarization thin-film lithium niobate coherent modulator for next-generation optical links with sub-1-V driving voltage and 110-GHz bandwidth, enabling a r...

A free-space coupled superconducting nanowire single-photon detector with high efficiency at 1550 nm, sub-0.1 Hz dark count rate, and sub-15 ps timing jitter is demonstrated....

A passive add-on greatly multiplies the sweep rate of any mechanical scanner while also enhancing throughput, enabling a single linear scanner to produce ultrafast 1D or 2D laser scans for general app...

On-chip direct coupling of dielectric waveguides to Si substrate-integrated photodetectors has been realized within a top-down approach. A first-run 44% external quantum efficiency at 850 nm is shown ...

We demonstrate electrically pumped, heterogeneously integrated lasers on thin-film lithium niobate, featuring electro-optic wavelength tunability....

We realized subsurface fluorescence LiDAR with a large format single-photon avalanche diode array capable of localizing and quantifying concentration of fluorescent molecules in heavily scattering med...

We demonstrate a CMOS-foundry-based ${\rm{S}}{{\rm{i}}_3}{{\rm{N}}_4}$ S i 3 ...

We present a theoretical proof that the “quantum enhancement” of two-photon absorption, thought to be a means to improve molecular spectroscopy and imaging, is tightly bounded by the physics of photon...

Silver gratings supporting surface plasmons at 532 nm catalyze the formation of light-emitting solid carbon from ${\rm CO}_2$ C O 2 gas, revealing a low-ener...

Conventionally, time-dependent systems add energy to electromagnetic waves by parametric amplification. Here we identify a distinct, alternative mechanism—compression of lines of force....

We report a 1310 nm heterogeneous quantum-dot distributed feedback laser on silicon with high efficiency and modulation capability and demonstrate isolator-free external modulation at 25 Gb/s using a ...