Spectroscopy-11-01-2005

Spectroscopy

Savitzky–Golay Smoothing and Differentiation Filter of Even Length: A Gram Polynomial Approach

November 01, 2005

Articles

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In various fields such as signal processing, imaging processing, analytical chemistry, and spectroscopic analysis, smoothing and differentiation is important and necessary. With a matrix approach, the Savitzky–Golay smoothing and differentiation filter was extended recently to even length. In this article, a more general approach is proposed for convenient computation.

Tutorial — Mass Analyzers: An Overview of Several Designs and Their Applications, Part I

November 01, 2005

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This tutorial illustrates the technical principles and typical applications of the most common mass analyzers used in bioanalytical laboratories today, as well as novel techniques and mass analyzer designs. Examples are based upon the authors' research in small molecule applications.

Continuous Wave Optical Parametric Oscillators Break New Spectral Ground

November 01, 2005

Articles

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New mid-infrared spectroscopic sources, based upon advances in fiber lasers and in nonlinear frequency conversion, are now enabling high-resolution laser spectroscopy in the 2–4 μm wavelength region and beyond. With this in mind, the authors discuss continuous wave (CW) optical parametric oscillators (OPOs) in particular.