Diode Laser Induced Fluorescence for Gas-Phase Diagnostics
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Iain S. Burns
Abstract
We highlight the capabilities and potential of diode laser induced fluorescence for measurements in gas-phase reacting flows. Many applications of diode lasers in practical sensing are based on absorption spectroscopy. Fluorescence-based diagnostics possess similar advantages in terms of practicality and implementation-cost but additionally are capable of achieving excellent spatial resolution. Diode laser fluorescence instruments have been employed for high-sensitivity trace gas monitoring in applications ranging from plasma physics to atmospheric chemistry. This article begins by describing the UV-visible diode laser technology used to perform fluorescence. The principles of diode laser induced fluorescence are then reviewed and a comparison is made with absorption spectroscopy. Examples are given of concentration measurements of both atomic and molecular trace gases. Recent work on using diode laser induced atomic fluorescence for precision measurements of flame temperature is also reviewed. We conclude by a discussion of future opportunities for diode laser fluorescence spectroscopy drawing attention to interesting potential target species as well as novel application areas, such as monitoring of synthesis processes for nanomaterials.
© by Oldenbourg Wissenschaftsverlag, Glasgow, G1 1XJ, Germany
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- On the Temperature Dependence of the Thermal Electron Attachment to SF6, SF5Cl, and POCl3
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Articles in the same Issue
- From flames to functional materials — The multiple facets of diagnostic techniques in Physical Chemistry
- High-Temperature Measurements of the Rate Constants for Reactions of OH with a Series of Large Normal Alkanes: n-Pentane, n-Heptane, and n-Nonane
- Experimental and Numerical Investigations of Ferrocene-Doped Propene Flames
- Non-Equilibrium Kinetic Studies of Plasma-Assisted Combustion using Laser-Based Diagnostics
- Coke Formation in Steam Reforming of Natural Gas over Rhodium/Alumina Catalysts: An Atomic Force Microscopy Study using the Oscillating Friction Mode
- Gas-Temperature Imaging in a Microwave-Plasma Nanoparticle-Synthesis Reactor Using Multi-Line NO-LIF Thermometry
- Identification of Tetrahydrofuran Reaction Pathways in Premixed Flames
- Competing Channels in the Propene + OH Reaction: Experiment and Validated Modeling over a Broad Temperature and Pressure Range
- The Effect of Carbon–Carbon Double Bonds on the Combustion Chemistry of Small Fatty Acid Esters
- PLIF Thermometry Based on Measurements of Absolute Concentrations of the OH Radical
- Diode Laser Induced Fluorescence for Gas-Phase Diagnostics
- Response of Bacillus thuringiensis Al Hakam Endospores to Gas Dynamic Heating in a Shock Tube
- Process Control of CVD Deposition of Nanocrystalline Diamond Films by Plasma Diagnostics
- Numerical Analysis of Thermoacoustic Instabilities Using LES and Computational Aeroacoustics
- On the Temperature Dependence of the Thermal Electron Attachment to SF6, SF5Cl, and POCl3
- Single Acetone Droplets at Supercritical Pressure: Droplet Generation and Characterization of PLIFP
- Low Energy Electron Point Source Microscopy of Two-Dimensional Carbon Nanostructures
- High Resolution IR Spectroscopy of the C–H Stretch Bands of Benzene Monomer and Dimer in Helium Nanodroplets
- Dispersed Fluorescence Spectra of 1H- and 1D-Indazole
