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Displaying 48926 - 48950 of 74178

Kilohertz Linewidth From Frequency-Stabilized Mid-Infrared Quantum Cascade Lasers

December 1, 1999
Author(s)
R M. Williams, J F. Kelly, J S. Hartman, S W. Sharpe, M S. Taubman, J L. Hall, F Capasso, D L. Sivco, J N. Bailargeon, Yoshi Ohno
Frequency stabilization of mid-IR quantum cascade (AC) lasers to the kilohertz level has been accomplished by use of electronic servo techniques. With this acive feedback, an 8.5- m QC distributed-feedback laser is locked to the side of a rovibrational

Microsecond time-scale discrimination among polycytidylic acid, polyadenylic acid, and polyuridylic acid as homopolymers or as segments within single RNA molecules

December 1, 1999
Author(s)
M Akeson, D Branton, John J. Kasianowicz, E Brandin, D W. Deamer
Single molecules of DNA or RNA can be detected as they are driven through a single alpha-hemolysin channel by an applied electric field. During translocation, nucleotides within the polynucleotide must pass through the channel pore in sequential single
Displaying 48926 - 48950 of 74178