Question
In: Physics
What is Raman Spectroscopy? what are its applications? what are the advances in this field? with...
What is Raman Spectroscopy? what are its applications? what are the advances in this field? with references.
Solutions
Expert Solution
Raman spectroscopy is a spectroscopic technique used to observe vibrational, rotational, and other low-frequency modes in a system. Raman spectroscopy is commonly used in chemistry to provide a structural fingerprint by which molecules can be identified.
Raman spectroscopy is used in many varied fields – in fact, any application where non-destructive, microscopic, chemical analysis and imaging is required. Whether the goal is qualitative or quantitative data, Raman analysis can provide key information easily and quickly. It can be used to rapidly characterize the chemical composition and structure of a sample, whether solid, liquid, gas, gel, slurry or powder.
Pharmaceuticals and Cosmetics
Compound distribution in tablets
Blend uniformity
High throughput screening
API concentration
Powder content and purity
Raw material verification
Polymorphic forms
Crystallinity
Contaminant identification
Combinatorial chemistry
In vivo analysis and skin depth profiling
Geology and Mineralogy
Gemstone and mineral identification
Fluid inclusions
Mineral and phase distribution in rock sections
Phase transitions
Mineral behavior under extreme conditions
Carbon Materials
Single walled carbon nanotubes (SWCNTs)
Purity of carbon nanotubes (CNTs)
Electrical properties of carbon nanotubes (CNTs)
sp2 and sp3 structure in carbon materials
Hard disk drives
Diamond like carbon (DLC) coating properties
Defect/disorder analysis in carbon materials
Diamond quality and provenance
Semiconductors
Characterisation of intrinsic stress/strain
Purity
Alloy composition
Contamination identification
Superlattice structure
Defect analysis
Hetero-structures
Doping effects
Photoluminescence micro-analysis
Life Sciences
Bio-compatibility
DNA/RNA analysis
Drug/cell interactions
Photodynamic therapy (PDT)
Metabolic accretions
Disease diagnosis
Single cell analysis
Cell sorting
Characterisation of bio-molecules
Bone structure
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