نتایج جستجو برای: optically pumped magnetometer
تعداد نتایج: 27711 فیلتر نتایج به سال:
We present a theoretical description of the Voigt and Faraday effect based optically pumped magnetometers using Floquet expansion. Our analysis describes spin-operator dynamics first- $\stackrel{\ifmmode \hat{}\else \^{}\fi{}}{F}(t)$ second-order ${\stackrel{\ifmmode \^{}\fi{}}{F}}^{2}(t)$ moments takes into account different pumping profiles decoherence effects. find that results are consisten...
We demonstrate an optical magnetometer based on a microfabricated Rb vapor cell in a micromachined silicon sensor head. The alkali atom density in the vapor cell is increased by heating the cell with light brought to the sensor through an optical fiber, and absorbed by colored filters attached to the cell windows. A second fiber-optically coupled beam optically pumps and interrogates the atoms....
A simple analog locking circuit was shown to stabilize the beat signal between a 2.408 THz quantum cascade laser and a CH(2)DOH THz CO(2) optically pumped molecular laser to 3-4 kHz (FWHM). This is approximately a tenth of the observed long-term (t approximately sec) linewidth of the optically pumped laser showing that the feedback loop corrects for much of the mechanical and acoustic-induced f...
2014 A semiclassical density matrix treatment is developed for the parallel near-resonant interaction of three waves in a four-level atomic or molecular system. Explicit solutions are developed and contain implicit AC Stark-shift and splitting information. The role of splitting and AC Stark-shifts is discussed for a system of two competing emitted waves starting from a common optically pumped l...
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