By shining laser light onto hydrogen or antihydrogen and observing which wavelengths are absorbed, the energy levels of the two can be compared in detail.
They say that in the spring, they hope to train a laser on the antihydrogen to make a preliminary measurement of the atom's spectrum so that it can be compared to regular hydrogen.
他们在春天说，他们希望产生一束反氢激光制造出原子光谱的初步测量器以便它能与常态的氢相比较。
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The experimental study on an electron-beam-initiated hydrogen fluoride laser with SPG-200 pulsed power generator is introduced.