光泵磁共振實驗研究
摘要：光泵磁共振實驗是指把實驗樣品置於光頻和射頻電磁場的共同作用下，使之發生共振。在探測磁共振時，不直接探測樣品對射頻量子的發射或吸收，而是探測樣品對光量子的`發射或吸收，即採用光探測的方法。由於光量子的能量比射頻量子的能量高7-8個數量級，所以這種方法既儲存了磁共振的高解析度又提高了探測訊號的靈敏度。本文運用光泵磁共振實驗裝置進行實驗，先測定了朗得因子g的值及實驗時地磁場的大小；然後將光泵磁共振儀改裝成微弱磁場的測量儀器，並測定了其測量的範圍；最後，測得了共振訊號的線寬。
關鍵詞：共振；同位素； 塞曼分裂；光抽運； 激發
The Research of Optical Pumping Magnetic Resonance Experiment
Abstract: The optical pumping magnetic resonance experiment is putting the experimental samples under the action by the optical frequency and radio-frequency electromagnetic field together and making them resonate. We detect the radiation or absorption about the optical quanta of the samples not about the radio-frequency quanta, when detecting the magnetic resonance. This is just the way of detection with light. This method not only keeps the high-definition but also improves the degree of sensitivity when detecting the signal, for the energy of the optical quanta is higher 7-8 orders of magnitude than that of radio-frequency quanta. In the paper, with optical pumping magnetic resonance instrument, firstly, the value of the landẻ g-favtor and the magnitude of the earth magnetic is measured; secondly, the optical pumping magnetic resonance instrument is changed into the weak magnetic signal measurement device, the range of its measurement is tested; finally, the line breadth of the resonance signal is measured.
Keywords: Resonance; Isotopic; Zeeman splitting; Optical pumping; Excited
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