A misalignment-tolerant multi-pass optical cavity boosts weak Raman signals, doubling path length and enabling stable, ...

Understanding complex biological and biomedical systems is greatly aided by 3D imaging, which provides much more detailed information than traditional two-dimensional methods. However, live cell and ...

Visualization of glucose molecule "fingerprint information". (a) SNOM-TERS platform based on fiber vector light field; Background-free tip nanofocusing light source (b) and its electric field ...