title: Terahertz thermometry of gold nanospheres in water.
abstract: The photo-thermal effects of plasmonic nanoparticles are promising for cancer therapies. These treatments would greatly benefit from real-time, multi-scale temperature mapping by non-invasive means. Here we show that intense terahertz time domain spectroscopy can be used as a non-contact and high-resolution thermometer of water solutions. Using this technique, we measure the temperature change, triggered by femtosecond amplified laser pulses, of a solution of gold nanospheres in water. Extensions of this ultra-fast and non-invasive technique could open the door to real-time micro-thermometry of single cells without fluorescent labels.
authors.forename: Fabio
authors.initials: F
authors.lastname: Novelli
authors.forename: James W M
authors.initials: JW
authors.lastname: Chon
authors.forename: Jeffrey A
authors.initials: JA
authors.lastname: Davis