title: Wide area coverage Raman spectroscopy for reliable quantitative analysis and its applications.
abstract: This review summarizes recent studies to improve sample representation in Raman measurement by covering a large area of a sample in spectral collection. Three different schemes have been mainly investigated to fulfill the goal: (1) averaging of Raman spectra collected at many different locations on a sample, (2) rotation of a sample during spectral collection and (3) simultaneous wide area illumination (WAI) for spectral collection. The use of a wide area illumination scheme, simultaneously illuminating a laser over a large area for spectral acquisition without any further assistance such as sample rotation, has increased in diverse fields. Applications employing the WAI scheme in pharmaceutical, polymer/chemical/petrochemical and other areas are described in this review.
authors: Department of Chemistry, College of Natural Sciences, Hanyang University, Seoul, 133-791, Korea.
authors: Kayeong
authors: K
authors: Shin
authors: Hoeil
authors: H
authors: Chung