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Now showing items 31-35 of 35
Superluminal propagation via coherent manipulation of the Raman gain process
(American Physical Society, 2004-08-12)
We present a method of manipulating the Raman process by using a coherent control field which leads to splitting of the Raman gain peak into a doublet and anomalous dispersion in the region between the gain peaks. We show ...
Quantum disentanglement eraser: A cavity QED implementation
(American Physical Society, 2004-07-29)
A possible experimental scheme of the Garisto-Hardy disentanglement eraser based on a cavity QED system is presented. This scheme can be used for a delayed choice quantum eraser. It also allows us to acquire single-qubit ...
Planar THz quasioptics
(AIP Publishing, 2004-08-09)
Two-dimensional (2D) quasioptical elements are demonstrated as guiding structures in the THz frequency regime. A planar polyethylene lens is incorporated in a parallel metal plate structure and is shown to focus guided THz ...
Genome-wide screen identifies a single B-defensin gene cluster in the chicken: Implications for the origin and evolution of mammalian defensins
(BioMed Central, 2004-08-13)
Background: Defensins comprise a large family of cationic antimicrobial peptides that are characterized by the presence of a conserved cysteine-rich defensin motif. Based on the spacing pattern of cysteines, these defensins ...
Digital signal processor-based real-time optical Doppler tomography system
(SPIE, the international society for optics and photonics, 2004-05-01)
We present a real-time data-processing and display unit, based on a custom-designed digital signal processor (DSP) module for imaging tissue structure and Doppler blood flow. The DSP module is incorporated into a conventional ...