نتایج جستجو برای: optically pumped magnetometer

تعداد نتایج: 27711  

ترکاشوند, مصطفی, فرهبد, امیر حسین, هاشمی زاده, سید علی,

The experimental study of passively Q-switched, LED-pumped Ce:Nd:YAG laser is reported. The active medium is a 3 mm diameter laser rod with 60 mm length; it is optically pumped with four segments of blue LEDs at 460 nm, with each segment consisting of 32 single LEDs. The 14 cm length optical resonator with 2 dielectric mirrors and the reflectivity of 99 and 93 percent at 1064 nm produced more t...

Journal: :IEEE Transactions on Instrumentation and Measurement 1991

Journal: :Chinese Optics Letters 2021

Optically pumped magnetometers (OPMs) have developed rapidly in the bio-magnetic measurement field, which requires lasers with stable frequency and intensity for high sensitivity. Herein we stabilize a vertical-cavity surface-emitting laser (VCSEL) without any additional setup except parts of an OPM. The linewidth absorption spectrum as reference is broadened to 40 GHz owing pressure broadening...

2017
R. Vilaseca

Research over over the last eight years shows that lasers are among the most ver­ satile physical systems for studying the dynamic behaviour of nonlinear dissipa­ tive systems where motion never beco­ mes stable or periodic. The wide variety of laser classes, the ease with which several laser parameters can be changed and the rapidity of the internal relaxation proces­ ses have allowed the obse...

Journal: :IEEE Journal of Quantum Electronics 1987

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