Spectroscopic Applications of Terahertz Quantum-Cascade Lasers

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Detalles Bibliográficos
Clasificación:Libro Electrónico
Autor principal: Alam, Tasmim
Formato: Electrónico eBook
Idioma:Inglés
Publicado: Göttingen : Cuvillier Verlag, 2020.
Colección:Innovationen mit Mikrowellen und Licht. Forschungsberichte aus dem Ferdinand-Braun-Institut, Leibniz-Institut für Höchstfrequenztechnik.
Temas:
Terahertz spectroscopy.
Lasers.
Spectroscope.
Spectroscopie térahertz.
Spectroscopes.
lasers (optical instruments)
Lasers
Spectroscope
Terahertz spectroscopy
Acceso en línea:Texto completo
Tabla de Contenidos:
  • Intro
  • Abstract
  • Zusammenfassung
  • List of Abbreviations
  • Symbols
  • Chapter 1 Introduction
  • 1.1 Terahertz radiation
  • 1.2 Applications of THz radiation
  • 1.3 Organization of thesis
  • Chapter 2THz sources, detectors, and components
  • 2.1 THz sources
  • 2.2 THz detectors
  • 2.3 THz optical components
  • Chapter 3 Fundamentals of terahertzquantum-cascade lasers and laserabsorption spectroscopy
  • 3.1 Historical overview of QCL
  • 3.2 Active region of QCL
  • 3.3 Active region designs
  • 3.4 Waveguides
  • 3.5 Temperature performance of THz QCLs
  • Chapter 4Experimental techniques
  • 4.1 Cooling system
  • 4.2 Power measurement of THz QCLs
  • 4.3 Light-current-voltage characterization
  • 4.4 Beam characterization
  • 4.5 Fourier transform spectroscopy
  • 4.6 High-resolution molecular spectroscopy with a THzQCL
  • Chapter 5 Doppler free spectroscopy with a THzQCL
  • 5.1 Theoretical background
  • 5.2 Experimental setup for QCL characterization andsaturated absorption spectroscopy
  • 5.3 Results
  • 5.4 Experimental setup for Lamb-dip spectroscopy
  • 5.5 Results
  • 5.6 Doppler-free spectroscopy inside a mechanicalcryocooler
  • 5.7 Conclusion
  • Chapter 6 Molecular spectroscopy bylight-induced frequency tuning of THzQCLs
  • 6.1 Theoretical background
  • 6.2 Experimental setup
  • 6.3 Results
  • 6.4 Illumination in different regions of the QCL
  • 6.5 Comparison of light-induced, current andtemperature tuning effects
  • 6.6 Frequency tuning by continuously variable naturaldensity filter
  • 6.7 Future prospects
  • Chapter 7 Frequency and output powerstabilization of a THz QCL usingnear-infrared illumination
  • 7.1 Experimental setup
  • 7.2 Frequency tuning measurements
  • 7.3 Frequency modulation spectroscopy

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