Standoff Detection using a Spatial Heterodyne Raman Spectrometer
Demonstrated that the technique works in the visible, and provides high resolution (6 cm-1) Raman spectra with a large spectral range. Much higher resolution is possible. ? Demonstrated the wide-area capability without loss of resolution and minimal loss of intensity. ? Demonstrated with pulsed laser and gated detection for ambient light discrimination. ? Demonstrated standoff capability with and without a telescope. ? Pointed out some key issues that still need to be addressed including stability of optical mounts, quality of optics, anti-Stokes overlap, and the need for excellent bandpass filtering.
Best of the Week: Hawaii’s Hidden Geology, Waters Announces Software Update
May 9th 2025Top articles published this week include an announcement from Waters Corporation, a news story about the hidden geology of the Big Island of Hawaii, the latest “IR Spectral Interpretation” column, which focuses on analyzing carbonyl compounds, and wearable spectroscopy sensors.
New AI Model Accelerates Infrared Imaging for Protein Analysis, Study Reveals
May 7th 2025A new study led by Ayanjeet Ghosh of the University of Alabama presents a transformative approach to analyzing infrared (IR) imaging data, with promising implications for neurodegenerative disease research.
Wearable fNIRS Sensor Tracks Cognitive Fatigue in Real Time
May 7th 2025Researchers have developed a wireless, wearable brain-monitoring device using functional near-infrared spectroscopy (fNIRS) to detect cognitive fatigue in real time. The miniaturized system enables mobile brain activity tracking, with potential applications in driving, military, and high-stress work environments.
