Raman spectroscopy using non-invasive near-infrared (NIR) laser light has b
ecome a powerful tool for the microscopic analysis of organic and biologica
l materials. A Raman tweezers microscope (RTM) was developed by combining N
IR Raman spectroscopy with the laser trapping technique, which enables us t
o expand the scope of single particle studies. Recent results obtained usin
g the RTM for single droplets and polymer spheres in a micrometer range are
reported. (C) 2001 Elsevier Science B.V. All rights reserved.