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Journals

Optical Pulse Synthesis From Two Separate Femtosecond Lasers

Author(s)
R K. Shelton, L -. Ma, H C. Kapteyn, M M. Murnane, J L. Hall, Jun Ye
Two independent mode-locked femtosecond lasers are tightly synchronized and phase locked. The rms timing jitter between the lasers is 4.3 fs within a 160 Hz

Stable and Robust Polymer Nanotubes Stretched From Polymersomes

Author(s)
Joseph E. Reiner, J M. Wells, Rani B. Kishore, Candace Pfefferkorn, Kristian Helmerson
We create long polymer nanotubes by directly pulling on the membrane of polymersomes using either optical tweezers or a micropipette. The polymersomes are

Multi-Pole Representation of the Dielectric Matrix

Author(s)
J A. Soininen, J J. Rehr, Eric L. Shirley
A good approximation for the electron self-energy or the electron quasiparticle properties is needed for an accurate calculation of x-ray absorption spectra

The Spectrum of Singly Ionized Potassium, K II

Author(s)
K Pettersen, J O. Ekberg, I Martinson, Joseph Reader
Using 10.7 m and 3-m normal-incidence vacuum ultraviolet spectrographs, we investigated the spectrum of singly ionized potassium in the regions 495 612 and 1247

A New Determination of G

Author(s)
J P. Schwarz, J E. Faller, T M. Niebauer, F Klopping, D S. Robertson, G Sasagawa
A short test run of the apparatus was conducted in February 1997 and gave promising results. A difference signal of about 80 υGal was observed, with reasonable

Towards Metrological Traceability for DNA Fragment Ratios in GM Quantitation. Part A The Effect of DNA Extraction Methods on the Quantitative Determination of Bt176 Corn by Real-Time PCR

Author(s)
Ph Corbisier, W Boothaerts, S Giorio, Heinz Schimmel, M J. Burns, A Baoutina, K R. Emslie, S Furui, Y Kurosawa, Marcia J. Holden, H H. Kim, Y M. Lee, M Kawaharasake, D. W. Sin, J. Wang
An international CCQM-P60 pilot study involving 8 national metrological institutes was organized to investigate if the quantification of genetically modified
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