Sentences with phrase «of ultraviolet laser»

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Dynamics of defects in Ce3 + doped silica affecting its performance as protective filter in ultraviolet high - power lasers

Without the use of a black light, the extent of the disease could go unnoticed and worsen over time with ultraviolet ray exposure or laser therapy.

Using an ultrafast, ultraprecise ultraviolet laser, a team of physicists and biologists at Vanderbilt University has taken an important step toward understanding the nature of these trigger signals.

The Dalian Coherent Light Source, whose completion was announced today in Beijing, has a twist that makes it unique: It is the only large laser light source in the world dedicated to the particular range of short - wavelength light called vacuum ultraviolet, which makes it «a new tool for the detection and analysis of molecules undergoing chemical reactions,» says Alec Wodtke, a physical chemist at the Max Planck Institute for Biophysical Chemistry and the University of Göttingen in Germany..

Ideally, the electron gains so much energy in the laser field that upon impact with the atom, a much shorter flash of light with very high energy is emitted — an attosecond laser pulse, with a frequency in the ultraviolet - or x-ray regime.

Eugene Tkalya of the Institute of Nuclear Physics at Moscow State University in Russia suggests making a thorium laser by firing conventional ultraviolet lasers at crystals made mostly of lithium, calcium, aluminium and fluorine, with a sprinkling of thorium.

An ultraviolet laser frees the ATP, allowing it to rush into the ion channels of the modified neurons.

The trick worked because relevant phonon peaks can be seen with much better resolution in the spectrum of nickel oxide under ultraviolet laser excitation,» Balandin added.

«Our team was able to accomplish this task by using Raman spectroscopy with an ultraviolet laser, instead of conventional visible light lasers.

Now UC Davis graduate student Zhou Lu, working with professors in the Departments of Chemistry and of Earth and Planetary Sciences, has shown that oxygen can be formed in one step by using a high energy vacuum ultraviolet laser to excite carbon dioxide.

In a series of experiments, the team fired an unspeakably brief, extremely ultraviolet laser pulse at a helium atom to start exciting its pair of electrons.

The investigation of cluster explosion dynamics under intense extreme - ultraviolet (XUV) pulses has so far been limited to large scale facilities like free - electron lasers.

Fibers treated this way can transmit stable, high - power ultraviolet laser light for long periods of time, resisting the damage usually caused by UV light.

Researchers at the National Institute of Standards and Technology (NIST) have put this hydrogen «cure» to practical use, making optical fibers that transmit stable, high - power ultraviolet laser light for hundreds of hours.

But a new study of pulsed ultraviolet lasers finds that living tissue actually helps the lasers cut more effectively.

The technique uses an ultraviolet laser controlled by a computer - aided design system to trace patterns across the surface of a photoactive polymer solution.

Scientists are using this extended comb to study the fine structure of atoms and molecules with extreme ultraviolet laser light.

To do this, they fired ultraviolet laser pulses lasting 100 to 200 attoseconds (10 - 18 seconds) at a helium atom to start exciting its pair of electrons.

The other part of the process, as explained in the paper, is using the high harmonic generation process to produce bright spatially coherent beams from a tabletop laser, spanning the range from the vacuum ultraviolet (wavelengths less than 200 nm) to the soft X-ray region of the spectrum (wavelengths less than 10 nm)

This method, which uses an ultraviolet laser developed as part of PNNL's Microbial Communities Initiative, permits spatially resolved carbon stable isotope measurements versus standard methods that produce average, bulk - type measurements.

Together with Rangaswamy Srinivasan and Samuel E. Blum, for their discovery of pulsed ultraviolet laser surgery, wherein laser light cuts and etches biological tissue by photoablation with minimal collateral damage, leading to healing without significant scarring.

Together with Rangaswamy Srinivasan and James J. Wynne, for their discovery of pulsed ultraviolet laser surgery, wherein laser light cuts and etches biological tissue by photoablation with minimal collateral damage, leading to healing without significant scarring.

The results show that the gap around the node at sufficiently low temperatures can be well described by a monotonic d - wave gap function for both samples and the... ▽ More The energy gap of optimally doped Bi2 (Sr, R) 2CuOy (R = La and Eu) was probed by angle resolved photoemission spectroscopy (ARPES) using a vacuum ultraviolet laser (photon energy 6.994 eV) or He I resonance line (21.218 eV) as photon source.

Abstract: The energy gap of optimally doped Bi2 (Sr, R) 2CuOy (R = La and Eu) was probed by angle resolved photoemission spectroscopy (ARPES) using a vacuum ultraviolet laser (photon energy 6.994 eV) or He I resonance line (21.218 eV) as photon source.