Engineers have miniaturized dual-frequency combs by putting two frequency comb generators on a single millimeter-sized silicon-based chip. This could lead to low-cost, portable sensing and ...

Dual-comb spectroscopy performed in the mid-infrared—where molecules have their strongest rotovibrational absorption lines—offers the promise of high spectral resolution broadband spectroscopy with ...

The Korea Research Institute of Standards and Science has successfully developed a length measurement system that achieves a level of precision approaching the theoretical limit allowed by quantum ...

With the advancement of laser technology, ultrashort pulsating lasers give a new technological technique for highly precise spectroscopic measurement. To precisely monitor wavelengths, the optical ...

A frequency comb is a spectrum of evenly spaced, phase-coherent laser lines, that acts like a ruler to measure the frequency of light with extreme precision. The dual-comb technique does not suffer ...

Dual-comb spectroscopy (DCS) has rapidly become a cornerstone of precision molecular detection, offering unparalleled resolution, broad spectral coverage, and fast acquisition speed. From fundamental ...

An improvement to a Nobel Prize-winning technology called a frequency comb enables it to measure light pulse arrival times with greater sensitivity than was previously possible -- potentially ...

Optical frequency combs could provide a high-tech solution for measuring the gaseous emissions of livestock “in the field”, potentially supporting precision agriculture and helping to reduce ...

“This is the first time a dual comb has been generated on a single chip using a single laser,” says Lipson, Higgins Professor of Electrical Engineering. A compact, integrated, silicon-based chip used ...