title: Dispersion filter for spectral and spatial resolution of pure rotational Raman scattering.
abstract: A new filtering technique for Raman spectroscopy utilizes atomic vapor to suppress strong elastic and Rayleigh scattering while simultaneously resolving individual rotational Raman lines. Filtered images capture high-resolution spectral information in one dimension and spatial resolution in the other dimension. The filter is based on resonance enhanced dispersion, where the index of refraction varies dramatically. In a simple prism geometry the vapor disperses incident radiation according to frequency. A mercury-vapor-based dispersion filter has been fabricated, modeled, and demonstrated to capture pure rotational Raman scattering from CO(2).
authors: N D
authors: ND
authors: Finkelstein
authors: A P
authors: AP
authors: Yalin
authors: W R
authors: WR
authors: Lempert
authors: R B
authors: RB
authors: Miles