A magnetic field rotates the polarization of light. Rotation proportional to magnetic field strength.
Light reflected from a magnetized surface (object) can change in polarization and intensity.
Use of lasers - Faraday Effect and SMOKE
Magnetic resonance current density imaging (MRCDI)
Current density imaging with Magnetic Resonance (MR)
Hyperpectral imaging - Wikipedia
Infrared - Wikipedia
Physiological Monitoring (Sensing) includes Remote Physiological Monitoring (Sensing) performed with non-contact remote techniques which use physiological
monitoring RADAR systems.
Chip Transceiver (Emitter and Receiver)
(Droitcour A.D. dissertation - Stanford)
Horn antenna - Katabi MIT lab "EQ-Radio"
RADAR approach combined with algorithms for emotion detection
Parabolic antenna (dish) - RADAR cardiogram at 15 ft
Remote Vital Sign Monitor (RVSM) for Olympic athletes (Atlanta Olympics1996)
Magnetoencephalography with SQUID magnetometers
Magnetoencephalography with atomic magnetometers
Optical magnetometers - SERF magnetometers
(structural) MRI - Magnetic Resonance Imaging
functional MRI (fMRI)
functional Near-Infrared Spectroscopy Imaging (fNIRS)
Magnetic Resonance: A magnetic field splits spin energetic levels and induces spin precession. Energy transitions under conditions of Magnetic Resonance.
A magnetic field induces spin polarization and a net magnetization
An RF tips the magnetization with energy absorption. During magnetization decay a signal (FID) is emitted.
MRI: Polarization enhancement techniques
MRI: Detection RF pulse design
Inducing a Steady State Magnetization providing a continuously emitted signal from the subject
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