Optical detection and ionization of donors in specific electronic and nuclear spin States.
نویسندگان
چکیده
We resolve the remarkably sharp bound exciton transitions of highly enriched 28Si using a single-frequency laser and photoluminescence excitation spectroscopy, as well as photocurrent spectroscopy. Well-resolved doublets in the spectrum of the 31P donor reflect the hyperfine coupling of the electronic and nuclear donor spins. The optical detection of the nuclear spin state, and selective pumping and ionization of donors in specific electronic and nuclear spin states, suggests a number of new possibilities which could be useful for the realization of silicon-based quantum computers.
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ورودعنوان ژورنال:
- Physical review letters
دوره 97 22 شماره
صفحات -
تاریخ انتشار 2006