Laser frequency combs are light sources that produce evenly spaced, sharp lines across the spectrum, resembling the teeth of a comb. They serve as precise rulers for measuring time and frequency, and ...

Optical frequency combs constitute a transformative class of light sources that emit a spectrum of discrete, equally spaced lines spanning hundreds of terahertz. Generated most commonly by mode-locked ...

Recent advances in femtosecond optical vortices (FOVs)—characterized by helical wavefronts and high peak power—have enabled breakthroughs in attosecond vortex generation and 3D chiral microfabrication ...

Since 1999 and 2000, there has been a remarkable convergence of the fields of ultrafast optics, opti cal frequency metrology, and precision laser spectroscopy — a convergence that our lab was ...

In the world of modern optics, frequency combs are invaluable tools. These devices act as rulers for measuring light, enabling breakthroughs in telecommunications, environmental monitoring, and even ...

Cambridge, MA – Optical frequency combs are specially designed lasers that act like rulers to accurately and rapidly measure specific frequencies of light. They can be used to detect and identify ...

Dual-comb spectroscopy employs two optical frequency combs with slightly offset repetition rates to perform rapid, high-resolution measurements across broad spectral ranges without moving parts. By ...

A new, miniature laser source developed by applied physicists in the Harvard John A. Paulson School of Engineering and Applied Sciences (SEAS) and the Technical University of Vienna (TU Wien) could ...

The trick to creating a better quantum sensor? Just give it a little squeeze. For the first time ever, scientists have used a technique called “quantum squeezing” to improve the gas sensing ...

New silicon nitride microresonator cuts timing jitter in soliton microcombs, boosting precision for lidar, quantum metrology, and ultrafast communications. (Nanowerk News) Laser frequency combs are ...