title: Adaptable infrared surface plasmon resonance spectroscopy accessory.
abstract: A second generation prototype enabling surface plasmon resonance spectroscopic measurements in the infrared (IR) range is described. The new design (v2) uses the optical train (optics and detector) within conventional FT-IR spectrometers by confining dimensions of the accessory to space available within the sample compartment of the spectrometer. The v2 accessory builds upon knowledge gained from a previous version that was based on a modified commercial variable angle spectroscopic accessory and addresses observed limitations of the original design-improved temporal stability and measurement acquisition speed, crucial to biomolecular binding studies, as well as optical flexibility, a requirement for investigations of novel plasmon-supporting materials. Different aspects of the accessory, including temporal stability, mechanical resilience, and sensitivity to changes in refractive index of a sample were evaluated and presented in this contribution.
authors.affiliation: Department of Chemistry and Biochemistry, University of Delaware, 002 Lammot Dupont Laboratory, Newark, Delaware 19716, USA.
authors.forename: Nicola
authors.initials: N
authors.lastname: Menegazzo
authors.forename: Laurel L
authors.initials: LL
authors.lastname: Kegel
authors.forename: Yoon-Chang
authors.initials: YC
authors.lastname: Kim
authors.forename: Derrick L
authors.initials: DL
authors.lastname: Allen
authors.forename: Karl S
authors.initials: KS
authors.lastname: Booksh