Useful Links
Physics
Applied and Interdisciplinary Physics
Spectroscopy
1. Fundamentals of Spectroscopy
2. General Spectroscopic Instrumentation and Concepts
3. Atomic Spectroscopy
4. Molecular Spectroscopy
5. Magnetic Resonance Spectroscopy
6. Other Spectroscopic Methods
7. Applications and Data Analysis
General Spectroscopic Instrumentation and Concepts
Components of a Spectrometer
Radiation Source
Continuous Sources
Tungsten Lamps
Deuterium Lamps
Xenon Arc Lamps
Line Sources
Hollow Cathode Lamps
Gas Discharge Lamps
Laser Sources
Coherent Radiation
Monochromatic Output
Source Stability
Power Fluctuations
Wavelength Drift
Wavelength Selector
Filters
Absorption Filters
Interference Filters
Bandpass Characteristics
Monochromators
Prisms
Dispersion Principle
Material Properties
Gratings
Diffraction Principle
Blazed Gratings
Holographic Gratings
Resolution and Dispersion
Sample Holder
Cuvettes
Quartz Cuvettes
Glass Cuvettes
Plastic Cuvettes
Path Length Considerations
Gas Cells
Variable Path Length Cells
High-Pressure Cells
Liquid Cells
Flow Cells
Temperature-Controlled Cells
Solid Sample Holders
Transmission Holders
Reflection Holders
Detector
Photomultiplier Tubes
Photocathode Materials
Dynode Chain
Dark Current
Photodiodes
Silicon Photodiodes
InGaAs Photodiodes
Response Characteristics
Charge-Coupled Devices
Array Detectors
Quantum Efficiency
Thermal Detectors
Bolometers
Pyroelectric Detectors
Signal Processing
Amplification
Low-Noise Amplifiers
Lock-in Amplifiers
Analog-to-Digital Conversion
Resolution
Sampling Rate
Data Display and Storage
Real-Time Display
Data Logging
Key Performance Metrics
Spectral Resolution
Factors Affecting Resolution
Slit Width
Grating Characteristics
Optical Design
Signal-to-Noise Ratio
Sources of Noise
Shot Noise
Thermal Noise
Flicker Noise
Methods to Improve Signal-to-Noise Ratio
Signal Averaging
Modulation Techniques
Cooling Detectors
Sensitivity and Detection Limit
Sensitivity Definition
Detection Limit Definition
Limit of Quantification
Factors Affecting Sensitivity
Source Intensity
Detector Efficiency
Optical Throughput
Spectral Representation
Types of Spectra
Absorption Spectrum
Emission Spectrum
Excitation Spectrum
Action Spectrum
Transmittance and Absorbance
Transmittance Definition
Absorbance Definition
Relationship Between Transmittance and Absorbance
Beer-Lambert Law
Mathematical Formulation
Molar Absorptivity
Path Length Dependence
Concentration Dependence
Limitations and Deviations
Chemical Deviations
Instrumental Deviations
Stray Light Effects
Linewidth and Broadening Mechanisms
Natural Broadening
Lifetime Broadening
Uncertainty Principle
Doppler Broadening
Temperature Dependence
Molecular Mass Dependence
Pressure Broadening
Collision Frequency
Lorentzian Line Shape
Instrumental Broadening
Slit Function
Convolution Effects
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1. Fundamentals of Spectroscopy
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3. Atomic Spectroscopy