In the dark cavity beneath the tub, the electronic timer pulsed in silence.

Source: https://www.dailymail.co.uk/news/article-11900645/New-book-recreates-IRA-attack-Brightons-Grand-Hotel-Margaret-Thatcher-narrowly-escaped.html?ns_mchannel=rss&ns_campaign=1490&ito=1490

This innovative instrument utilizes a pulsed laser to transform a sample into a plasma state, which is subsequently examined optically across a range of wavelengths, encompassing visible light, ultraviolet (UV), and infrared (IR) spectrums.

Source: https://theclarion.ca/media-release/arbor-metals-employs-cutting-edge-libs-laser-spectrometer-for-advanced-lithium-exploration-at-the-jarnet-lithium-project/