Micro-Raman spectrometer

Raman spectrum of synthetic coesite (488nm, 50mW, 10s)

machine specifications:

• Laser source: 488, 532, 783 nm laser available
• Monochrometer: Acton SpectraPro 500i (f=500mm)
• Detector: PyLoN 400BRX 1340x400 pixels LN₂-cooled CCD (Princeton Instruments)
• Optics: 180deg scattering geometry, Raman edge filter (488, 532, 488 nm) for Raleigh rejection, and Ondax Raman notch filters (488 nm)
• conforcal design, polarized Raman measurement, Mitsutoyo's 10x, 20x, 50x, 100x objective lenses
• Spacial resolution: down to 1 micron (depends on objective lens)

applications:

• Studies of local structure of solutions, crystals, glasses and melts at various conditions
• Studies of vibrational properties of materials
• Identification of phases in experimental run products and natural rocks
• Identification of small inclusions of diamond, coesite, etc in the ultrahigh pressure metamorphic rocks
• Analysis of fluid inclusions in the natural rocks
• In-situ high temperature study using heating stages
• In-situ high pressure study using diamond anvil cell (DAC)
• Pressure determination of DAC by means of ruby fluorescence

Further information: English/日本語

person(s) whom users should contact: Masami Kanzaki