The open archive for STFC research publications

Full Record Details

Persistent URL http://purl.org/net/epubs/work/11019447
Record Status Checked
Record Id 11019447
Title Laser heating of sulfuric acid droplets held in air by laser Raman tweezers
Abstract An optical trap is used to hold a droplet of concentrated sulfuric acid in the focus of Ar-ion laser (lambda = 514.5 nm). The temperature and concentration of sulfuric acid in the droplet is calculated from the shifts and intensities of the Stokes-shifted Raman bands around 1000 rel.cm(-1). Aqueous sulfuric acid droplets can thus be used as a 'thermometer' for optically trapped droplets in air. It is demonstrated that the laser power can be kept low enough to prevent significant laser heating of the trapped droplet and that high laser powers (in excess of 16 mW) can result in heating of 5-10 degrees C.
Organisation CLF , STFC
Funding Information
Related Research Object(s):
Licence Information:
Language English (EN)
Type Details URI(s) Local file(s) Year
Journal Article RSC Adv 3, no. 42 (2013): 19448-19454. doi:10.1039/c3ra44018d 2013