Measurement of the hyperfine structure and isotope shifts of the 3s{sup 2}3p{sup 2} {sup 3}P{sub 2}{yields}3s3p{sup 3} {sup 3}D{sub 3}{sup o} transition in silicon

Journal Article · Fri Oct 15 04:00:00 EDT 2010 · Physical Review. A

DOI:https://doi.org/10.1103/PHYSREVA.82.042515· OSTI ID:21450768

Lee, S A; Fairbank, Jr, W M ^[1]

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1. Department of Physics, Colorado State University Fort Collins, Colorado 80523 (United States)

The hyperfine structure and isotope shifts of the 3s{sup 2}3p{sup 2} {sup 3}P{sub 2}{yields}3s3p{sup 3} {sup 3}D{sub 3}{sup o} transition in silicon have been measured. The transition at 221.7 nm was studied by-laser induced fluorescence in an atomic Si beam. For {sup 29}Si, the hyperfine A constant for the 3s{sup 2}3p{sup 2} {sup 3}P{sub 2} level was determined to be -160.1{+-}1.3 MHz (1{sigma} error), and the A constant for the 3s3p{sup 3} {sup 3}D{sub 3}{sup o} level is -532.9{+-}0.6 MHz. The isotope shifts (relative to the abundant isotope {sup 28}Si) of the transition were determined to be 1753.3{+-}1.1 MHz for {sup 29}Si and 3359.9{+-}0.6 MHz for {sup 30}Si. This is an improvement by about two orders of magnitude over a previous isotope shift measurement. From these results we are able to predict the hyperfine structure and isotope shift of the radioactive {sup 31}Si atom, which is of interest in building a scalable quantum computer.

• OSTI ID: 21450768
• Journal Information: Physical Review. A, Journal Name: Physical Review. A Journal Issue: 4 Vol. 82; ISSN 1050-2947; ISSN PLRAAN
• Country of Publication: United States
• Language: English

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