How it works: the top frequency comb is passed through a sample of interest and then into a beamsplitter. The bottom frequency comb operates at a slightly different pulse repetition frequency and is ...

Top: In the new comb system, two pump lasers shape each tooth, producing a frequency comb that could theoretically be sharper than a comb produced by a single laser. Bottom: The interaction between ...

Comb jellyfish are even more unique than scientists previously expected, as new research shows they have a nervous system unlike anything scientists have ever encountered. The uniqueness here is due ...

Thin-disk single-cavity dual-comb lasers (TDSCs) offer a promising alternative to traditional dual-comb systems, simplifying the setup and enabling power scaling. Their shared resonator components ...

From monitoring concentrations of greenhouse gases to detecting COVID in the breath, laser systems known as frequency combs can identify specific molecules as simple as carbon dioxide and as complex ...

A recent article in Advanced Photonics Research presents a mid-infrared dual-comb spectroscopy (DCS) system that eliminates the need for external photodetectors. The researchers developed a ...

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Researchers have developed a device that can detect the presence of specific molecules in a sample every 20 nanoseconds, or billionths of a second. With this new capability, researchers can ...