Glasgow, Scotland, August 6, 2004--Jobin Yvon IBH has demonstrated subnanosecond pulsed operation of light-emitting diodes (LEDs) at 280 nm and 340 nm. These new wavelengths are important for biosensor and protein research, drug discovery, and a range of analytical applications based on time-resolved fluorescence. Jobin Yvon IBH is well-known for its line of pico- and nanosecond pulsed LED systems; its previously shortest-wavelength UV LED emits at 370 nm.
The 280-nm LED (part of the company's nanoLED product line) is of particular interest, because it matches the absorption maxima of the naturally fluorescent amino acids tryptophan and tyrosine. Tryptophan fluorescence is widely used as a probe of protein structure and dynamics. The 340-nm LED overlaps the commonly used 337-nm nitrogen line, and has potential to replace nitrogen lasers in many applications.
NanoLEDs are miniature turnkey light sources that generate short optical pulses from less than 100 ps up to 1 ns. All NanoLED sources are interchangeable and, with the addition of these new wavelengths, now provide plug-and-play operation from 280 to 1300 nm.
For technical information, contact Adam Gilmore, an applications scientist at Jobin Yvon Inc., at [email protected], or visit www.ibh.co.uk.