Project Number: 8042-42000-020-20
Start Date: Jul 01, 2011
End Date: Jun 30, 2016
Develop optical method to create laser-line illumination from a 785nm laser source. Construct Raman spectrograph with electron-multiplying charge-coupled device camera. Incorporate line laser and detector into a portable instrument for macro-scale Raman imaging of samples up to 10x20 cm in size. Develop computer programs for real-time data acquisition, data analysis, and classification. Perform system calibration/validation. Investigate contaminant and adulterant detection for food samples such as authentication of dry milk powder or other food ingredients, and detection of pesticide residues on fruits and leafy green vegetables.