An LED excites NV centers directly on a diamond-integrated chip, replacing bulky lasers to cut size, cost, and improve portability.
A GaN LED bonded to NV diamond replaces bulky laser optics, shrinking quantum sensing to mm³-scale chips with lower cost and better portability.
Separate fluorescence and reference light sensing enables common-mode rejection and digital filtering to improve ODMR magnetic field accuracy.
Optical NV-center magnetometry maps stray fields in ultra-scaled magnetic nanowires to quantify nano-defects without perturbing the sample.
Optical transmission dip minimization speeds zero-field resonance search and improves ambient magnetic field measurement accuracy.
Sector-shaped slices with quantum dots focus light onto a color center, replacing mechanical scanners for compact, high-sensitivity magnetic sensing.
A single low-power laser combines pumping and probing to generate atomic spin orientation and detect oscillating magnetic fields.
Pump-probe optical sensing captures magnetic stray field maps across many pixels at once, avoiding slow scanning while keeping sub-nanotesla sensitivity.
A branched excitation-light reference enables common-mode rejection and digital filtering to reduce noise in ODMR fluorescence signals.
A defined spacer and plate-based sensor hold drops securely, enabling NMR analysis of samples below 100 µl.
Bandpass filtering and demodulation remove rotor contributions from OPM measurements for magnetic beacon detection on smaller UAVs.
This case integrates the diamond, laser, photodetector, and bias-field structures into a circuit board for compact sensing.
A magnetometer applies distinct bias magnetic fields to separate sensitivity regions within a single cell to enable multi-channel detection using one probe light path.
Optical excitation of diamond nitrogen-vacancy centers enables precise gas identification without consuming sample material or requiring high temperatures.
An integrated optically pumped magnetometer array illuminates vapor cells with light sources and mirrors to detect magnetic fields.
Replacing trichlorosilanes with mono- or dichlorosilanes reduces residual chlorine atoms, extending alkali metal spin coherence lifetime.
Feedback loops stabilize NV center resonance frequencies to remove disturbance noise impact during physical state measurement.
Modulating light power spectrum at precession resonance frequency reduces drift and heading errors in magnetometer magnetic field measurements.
Low pass filters in a feedback circuit reject high-frequency noise while compensating for ambient interference, enabling wearable magnetoencephalography.
Compensatory magnetic fields reduce orthogonal primary field interference in atomic magnetometers, enhancing signal contrast for non-destructive testing.
Dynamic actuation aligns the sensor head with irregular sample surfaces, resolving trade-offs between measurement precision and geometric adaptability.
Total internal reflection extends the optical path within a bulk diamond, increasing nitrogen vacancy center interaction and enhancing measurement sensitivity.
A pump beam control system pulse-width modulates frequency to stabilize alkali metal vapor polarization in sensor cells.
Active shield coils cancel ambient magnetic noise, enabling natural head movement during biomagnetic measurement.
Nested feedback loops control magnetic field actuators to cancel ambient interference for wearable magnetoencephalography sensors.
Elevating the gas cell temperature increases spin-exchange collision rates, enabling SERF magnetometers to operate without bulky magnetic shielding.
A diamond nitrogen vacancy center apparatus performs quantum operations using microwave pulses and light irradiation to detect physical phenomena.
Dual atomic magnetometer segments measurement into alternating pumping and probing stages to eliminate time gaps between cycles.
A zero-field paramagnetic resonance magnetometer applies a strong bias field along the pump beam to broaden and strengthen the atomic resonance signal.