Assertion: laser | /r/CapableOf | need for magneto-optical trapping
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Source sentences:
text: The lasers needed for the magneto-optical trapping of rubidium-85: (a) & (b) show the absorption (red detuned to the dotted line) and spontaneous emission cycle, (c) & (d) are forbidden transitions, (e) shows that if a cooling laser excites an atom to the=3 state, it is allowed to decay to the "dark" lower hyperfine,=2 state, which would stop the cooling process, if it were not for the repumper laser (f).