Micro-structuring techniques in lithium niobate crystals can lead to unprecedented performance in integrated Mach-Zehnder modulators, including ultra-low voltage and large bandwidth operation. (Picture: D. Janner et al., pp. 301-313, in this issue) Back Cover Picture Azimuthal emission pattern of a
Contents: Laser & Photon. Rev.: 3(1-2)/2009
- Publisher
- John Wiley and Sons
- Year
- 2009
- Tongue
- English
- Weight
- 410 KB
- Volume
- 3
- Category
- Article
- ISSN
- 1863-8880
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β¦ Synopsis
A train of optical pulses are injected into a quantum dot semiconductor optical waveguide, where the velocity is slowed down and the pulsewidth is reduced. (Picture: J. MΓΈrk et al., in this issue) Back Cover Picture Anchoring proteins to surfaces for single-molecule optical-trapping experiments. Biotinylated-BSA, bovine serum albumin (grey) with an attached biotin molecule, can be adsorbed to glass. When the biotin (red dot) is correctly positioned, it is bound by streptavidin (green). Since streptavidin has four binding sites, it can also bind to the biotinylated helicase. Polyethylene glycol (PEG) (yellow) is covalently linked to a cover glass. A fraction of the PEG molecules are terminated in biotin which allows for a controlled density of streptavidin and thus the helicase.
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