The semiconductor, called a plasmon, can focus light the size of a single protein in a space that is smaller than half its wavelength while maintaining laser-like qualities that allow it to not dissipate over time.
Together with nine students who were awarded degrees in May, the total of 24 CNSE students who received graduate degrees during 2009 represents the largest number of graduates since the first class was admitted at CNSE in September 2004.
University of Wisconsin-Madison researchers have achieved a nanoscale laser structure they anticipate will produce semiconductor lasers in the next two years that are more than twice as efficient as current continuous-wave lasers emitting in the mid-infrared.
Wissenschaftler der Kieler Universitaet haben in Zusammenarbeit mit dem Berliner Max-Planck-Institut fuer Infektionsbiologie herausgefunden, wie kleine regulatorische RNAs in Methan-produzierenden Einzellern funktionieren.
Researchers at Burnham Institute for Medical Research at University of California, Santa Barbara have identified a peptide (a chain of amino acids) that specifically recognizes and penetrates cancerous tumors but not normal tissues.
MIT researchers have developed a new way to tune the frequency of lasers that operate in the terahertz spectrum. The result is an important step toward airport scanners that could tell whether a vial in a closed suitcase contains aspirin, methamphetamines or an explosive.
Very often in science, the unexpected discovery turns out to be the most significant. Rice University Professor Junichiro Kono and his team weren't looking for a breakthrough in the transmission of terahertz signals, but there it was: a plasmonic material that would, with adjustments to its temperature and/or magnetic field, either stop a terahertz beam cold or let it pass completely.
When are we sufficiently protected from danger? Does the state ensure that risks are kept to a minimum? The question about how far state risk prevention can go and the degree of safety that state measures can, may and must offer is raised not only in the field of consumer health protection.