Researchers describe using a novel method combining cryogenic technology and direct laser light to cool the nonlinear polyatomic molecule calcium monomethoxide (CaOCH3) to just above absolute zero.

Red light stop: The experiment uses multiple frequencies of light to cool the CaOH atoms to a fraction of a degree above absolute zero. (Courtesy: John Doyle) Physicists in the US have created ...

Ultrashort pulse interactions with atoms and materials encompass the study of electromagnetic pulses with durations on the femtosecond to attosecond scale, which provide an unparalleled window into ...

Three’s company: researchers at Harvard University have trapped individual triatomic molecules. (Courtesy: iStock/Emilija Randjelovic) Individual polyatomic molecules have been trapped in arrays of ...