Laser spectroscopy of gas confined in nanoporous materials

TL;DR

This paper demonstrates that high-resolution laser spectroscopy can effectively probe surface interactions and confinement effects of gases in nanoporous materials, revealing unique lineshapes and signal enhancements that challenge existing theories.

Contribution

It introduces the application of laser spectroscopy to nano-cavities, highlighting new phenomena and opening avenues for analyzing porous materials and confined gas interactions.

Findings

Observation of strong line broadening due to confinement

Detection of unfamiliar lineshapes in nano-cavities

Signal enhancement from multiple photon scattering

Abstract

We show that high-resolution laser spectroscopy can probe surface interactions of gas confined in nano-cavities of porous materials. We report on strong line broadening and unfamiliar lineshapes due to tight confinement, as well as signal enhancement due to multiple photon scattering. This new domain of laser spectroscopy constitute a challenge for the theory of collisions and spectroscopic lineshapes, and open for new ways of analyzing porous materials and processes taking place therein.