TY - GEN
T1 - Photothermal laser material interactions - From the sledgehammer to nano-GPS
AU - Hobley, Jonathan
AU - Paramelle, David
AU - Free, Paul
AU - Fernig, David G.
AU - Kajimoto, Shinji
AU - Gorelik, Sergey
PY - 2012
Y1 - 2012
N2 - In this chapter we will summarize the main photothermal, photoacoustic and photomechanical effects of coupling a laser beam into a material from the absorption of the laser light to the deactivation of vibrationally and electronically excited states. Some methods to estimate the resulting temperature rise will be discussed and the resulting pressure increase in the heated area explained. The relaxation of both pressure and thermal transients will be explored and several methods described, such as pump-probe spectroscopy and imaging techniques, which can be used to investigate the dynamics of the relaxation pathways. We will explain how photothermal effects can manifest as optical effects. Finally, we will describe how we can harness photothermally induced optical changes to provide a new methodology in bioimaging involving indestructible 5-10 nm noble metal nanoparticles that can be observed using photothermal tracking microscopy for unprecedented periods of time in live cell imaging.
AB - In this chapter we will summarize the main photothermal, photoacoustic and photomechanical effects of coupling a laser beam into a material from the absorption of the laser light to the deactivation of vibrationally and electronically excited states. Some methods to estimate the resulting temperature rise will be discussed and the resulting pressure increase in the heated area explained. The relaxation of both pressure and thermal transients will be explored and several methods described, such as pump-probe spectroscopy and imaging techniques, which can be used to investigate the dynamics of the relaxation pathways. We will explain how photothermal effects can manifest as optical effects. Finally, we will describe how we can harness photothermally induced optical changes to provide a new methodology in bioimaging involving indestructible 5-10 nm noble metal nanoparticles that can be observed using photothermal tracking microscopy for unprecedented periods of time in live cell imaging.
UR - http://www.scopus.com/inward/record.url?scp=84856246116&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84856246116&partnerID=8YFLogxK
U2 - 10.1007/978-3-642-25547-2_8
DO - 10.1007/978-3-642-25547-2_8
M3 - Conference contribution
AN - SCOPUS:84856246116
SN - 9783642255465
T3 - Advances in Intelligent and Soft Computing
SP - 85
EP - 111
BT - Advances in Bio-Imaging
A2 - Lomenie, Nicolas
A2 - Racoceanu, Daniel
A2 - Gouaillard, Alexandre
ER -