Whispering-gallery-mode (WGM) microcavities are very important in both fundamental
science and practical applications, among which on-chip second-order nonlinear …

Whispering-gallery-mode resonators can dramatically enhance the light-matter interaction,
benefitting nonlinear optics in many ways. Here, we demonstrate effective four-wave mixing …

The whispering-gallery-mode microcavities are important in fundamental science and
practical applications, which also play an essential role in integrated photonic devices. Here …

We demonstrate cascaded Stimulated Raman Scattering (SRS), Second-Harmonic
Generation (SHG), and Sum-Frequency Generation (SFG) in integrated on-chip whispering …

Whispering-gallery-mode (WGM) microresonators can dramatically boost the interaction
between light and matter, making them an ideal platform for studying nonlinear optics …

High-quality micro-resonators on thin-film lithium niobate (TFLN) have emerged as an ideal
platform for on-chip nonlinear optical applications due to their strong light confinement and …

The lithium niobate integrated photonic platform has recently shown great promise in
nonlinear optics on a chip scale. Here, we report second-harmonic generation in a high-Q …

Whispering-gallery-mode microresonators, one of the most important components of
photonic integrated circuits, have the ability to dramatically boost light–matter interactions. In …

We reveal a unique broadband natural quasi-phase-matching (QPM) mechanism underlying
an observation of highly efficient second-and third-order harmonic generation at multiple …

Microresonators of ultrahigh quality (Q) factors represent a crucial type of photonic devices
aiming at ultra-high spectral resolution, ultra-high sensitivity to the environmental …