Optical imaging of epileptiform and functional activity in human cerebral cortex

Article Abstract:

Optical imaging of the cerebral cortex can produce maps that will greatly assist research on epilepsy and the cortical processes related to sensation, language and cognition. The new imaging technique, characterized by the use of one intrinsic reflection signal, was successfully tested during stimulation-prompted epileptiform afterdischarges and cognitively evoked functional activity in five epileptic patients.

Usage, Epilepsy, Cerebral cortex, Images, Optical, Optical images

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Single-molecule optical switching of terrylene in p-terphenyl

Article Abstract:

The possibility of developing ultra-high-density data storage techniques has been increased with the successful and controlled manipulation of single atoms and molecules. A method of light-induced reversible, reproducible, switching of single molecules of the aromatic hydrocarbon terrylene embedded in p-terphenyl is described.

Research, Computer storage devices, Nuclear excitation, High-density storage

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Optical clocks coming of age

Article Abstract:

Issues are presented concerning the use of optical absorptions in the ultraviolet or infrared spectra for the construction of highly accurate single ion clocks. The choice of ion for optical clocks is discussed.

Design and construction, Atomic clocks

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