Single Airborne Dust Particles using Plasmonic Metal Films with Hole Arrays.
An airborne dust particle is trapped in the hole of a plasmonic metal film with a patterned array of holes (mesh) by pumping air through the mesh. Both scatter-free infrared spectra and scanning electron images are obtained on the same individual airborne dust particle, showing the feasibility of multiple, nondestructive experiments on a single, subwavelength particle. Ultimately, this may help to elucidate the effect of shape, orientation, and crystallinity on IR dust particle spectra.
Department of Chemistry, The Ohio State University, 100 West 18th Avenue, Columbus, Ohio 43210-1173, United States.
Marvin A
MA
Malone
Department of Chemistry, The Ohio State University, 100 West 18th Avenue, Columbus, Ohio 43210-1173, United States.
Matthew
M
McCormack
Department of Chemistry, The Ohio State University, 100 West 18th Avenue, Columbus, Ohio 43210-1173, United States.
James V
JV
Coe
airborne dust; metal films with hole arrays; plasmonic mesh; scatter-free infrared spectra; subwavelength particles