Achieving optical imaging beyond the diffraction limit imposed by a single finite aperture remains an important objective in astronomy, remote ...

Schematic of the planar device for producing dark- field speckle patterns. (Image from USTC). Credit: Douguo Zhang et al. Researchers from the University of Science and Technology of China (USTC) have ...

Sum-frequency generation (SFG) is a powerful vibrational spectroscopy that can selectively probe molecular structures at surfaces and interfaces, but its spatial resolution has been limited to the ...

Researchers built a silver-grooved chip that channels laser energy into nanometer-spaced peaks, beating the diffraction limit and aiding light-matter studies. (Nanowerk News) Physics is full of pesky ...

Scientists achieve optical measurements at atomic scales using quantum electron tunneling, surpassing conventional microscopy limits by nearly 100,000 times with standard lasers. (Nanowerk News) From ...