TY - GEN
T1 - Fluorescent probes for shock compression spectroscopy of microstructured materials
AU - Christensen, James M.
AU - Banishev, Alexandr A.
AU - Dlott, Dana D.
N1 - Funding Information:
The research described in this study is based on work supported by the Defense Threat Reduction Agency under Award No. HDTRA1-12-1-0011, the US Army Research Office under Award No. W911NF-13-1-0217, and the US Office of Naval Research under Award No. N00014-12-1-0828.
PY - 2017/1/13
Y1 - 2017/1/13
N2 - We are developing fluorescent probes to obtain dynamic two-dimensional pressure maps of shocked microstructured materials. We have fabricated silica nano- or micro-spheres doped with rhodamine 6G dye (R6G) which fluoresce strongly, and which may be dispersed throughout a microstructured sample. Alternatively we can grow thin skin layers of dye-doped silica on the surface of particles. The emissive microspheres were embedded in poly-methyl methacrylate (PMMA) and were excited by a quasi-continuous laser. When the samples were shocked to 3-8.4 GPa using laser-driven flyer plates, the emission redshifted and lost intensity. When encapsulating the dye in silica, the emission became brighter and the intensity-loss response became fast enough to monitor nanosecond shock effects. Preliminary data are reported showing the intensity loss in a shocked microstructured medium, an artificial sand, consisting of dye-coated silica microspheres.
AB - We are developing fluorescent probes to obtain dynamic two-dimensional pressure maps of shocked microstructured materials. We have fabricated silica nano- or micro-spheres doped with rhodamine 6G dye (R6G) which fluoresce strongly, and which may be dispersed throughout a microstructured sample. Alternatively we can grow thin skin layers of dye-doped silica on the surface of particles. The emissive microspheres were embedded in poly-methyl methacrylate (PMMA) and were excited by a quasi-continuous laser. When the samples were shocked to 3-8.4 GPa using laser-driven flyer plates, the emission redshifted and lost intensity. When encapsulating the dye in silica, the emission became brighter and the intensity-loss response became fast enough to monitor nanosecond shock effects. Preliminary data are reported showing the intensity loss in a shocked microstructured medium, an artificial sand, consisting of dye-coated silica microspheres.
UR - http://www.scopus.com/inward/record.url?scp=85017033487&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85017033487&partnerID=8YFLogxK
U2 - 10.1063/1.4971685
DO - 10.1063/1.4971685
M3 - Conference contribution
AN - SCOPUS:85017033487
T3 - AIP Conference Proceedings
BT - Shock Compression of Condensed Matter - 2015
A2 - Ravelo, Ramon
A2 - Sewell, Thomas
A2 - Chau, Ricky
A2 - Germann, Timothy
A2 - Oleynik, Ivan I.
A2 - Peiris, Suhithi
PB - American Institute of Physics Inc.
T2 - 19th Biennial American Physical Society Conference on Shock Compression of Condensed Matter, SCCM 2015
Y2 - 14 June 2015 through 19 June 2015
ER -