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Thesis

Quantum cascade laser spectroscopy: from trace gas detection to nonlinear optics

Abstract:

Quantum cascade lasers (QCLs) are high power, narrow linewidth mid-IR lasers that are increasingly popular for trace gas sensing and nonlinear spectroscopy. This thesis demonstrates QCL based spectroscopic techniques for multi-species detection, nonlinear optics and trace gas detection, highlighting the versatility of these lasers. Firstly, a Fabry-Perot QCL (FP-QCL) operating at 5.3 μm was used to perform multi-mode absorption spectroscopy (MUMAS) for sensing of NO and H2O. The lase...

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Department:
Physical & Theoretical Chem

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Role:
Supervisor
Type of award:
DPhil
Level of award:
Doctoral
Awarding institution:
University of Oxford

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