Sentences with phrase «nanometre wavelength»

When switched on by 450 nanometre wavelength light waves, on the other hand, the structures reorientate such that the bacteria cells can dock on once again.

Not exact matches

This is because their wavelength of 1064 nanometres means they are absorbed by the leaves and other organic matter such as oil, but not by metal, so energy from the lasers is reflected off the rails.

The key discovery consists in the observation that the composite thin film — barely 110 nanometres thick — absorbs a broader portion of the solar spectrum compared to the wavelengths absorbed in the thin films made of the two individual materials.

Q18 The spectrum of light from our sun peaks at a wavelength of approximately 500 nanometres.

A triple - layer coating of these materials — barely 200 nanometres thick — captures different wavelengths of light.

A spiral track of microscopic pits in the disc is read by a finely focused laser emitting infrared light at a wavelength of 780 nanometres.

Natural chromophores have a maximum absorption of around 560 nanometres, but one of the team's 11 modified chromophores was able to absorb red light with a wavelength of around 644 nm — tantalisingly close to infrared, which starts at about 750 nm (Science, doi.org/jxn).

Pulses with a wavelength near 597 nanometres, which have precisely the energy needed to make an antiproton jump between orbits, were followed almost immediately by an annihilation signal.

But not all the sunlight would be absorbed by this electrode: light with a wavelength longer than 600 nanometres isn't absorbed by the rust - coloured water in the top cell so would pass through to strike the lower electrode, powering the production of hydrogen.

The night - time emission of green light, with a wavelength of 557.7 nanometres, was detected in the Earth's upper atmosphere more than a century ago.

They are confident they can extend the tunable range to wavelengths from 650 to 1100 nanometres, which can pass through living tissue, and have devised a laser which could cost around # 10 000.

At present, lenses and mirrors can not focus light into a beam much smaller than the light's wavelength — 500 nanometres for blue - green lasers.

This is the case in Stupp's polymer, so a beam of infrared laser light (with wavelength 1068 nanometres) shone through it will emerge in the green part of the spectrum with a wavelength of 534 nanometres.

At the tip, the spot of light emitted is 50 nanometres across, a tenth of the blue - green light's wavelength.

In 1873, German physicist Ernst Abbe deduced that conventional optical microscopes can not distinguish objects that are closer together than about 200 nanometres — roughly half the shortest wavelength of visible light.

X-rays have very short wavelengths of only about 1 to 0.01 nanometres (nm), compared to 400 to 800 nm for visible light.

Then 75 billionths of a second later, a second pulse excites the niobium ions to produce a pulse of X-rays with a wavelength of 20.6 nanometres.

These LEDs generate long - wavelength infrared, of up to 1000 nanometres, which is invisible to the human eye.

The wavelength range in which a given semiconductor can emit light — also known as its bandwidth — is typically limited in the range of just tens of nanometres.

If laser light with a wavelength 1064 nanometres — which is in the infrared region of the spectrum — is shone on a crystal of the material, some of the light emerges as green light with a wavelength of precisely 532 nanometres.

The proof - of - concept device, which has been presented today, 3 May, in IOP Publishing's journal Semiconductor Science and Technology, takes advantage of the latest nano - scale materials and processes to emit green and red light separated by a wavelength of 97 nanometres — a significantly larger bandwidth than a traditional semiconductor.

The bonding properties of the saccharide coating can now be switched using this method: if the researchers irradiate their system with light with a wavelength of 365 nanometres, considerably fewer pathogenic bacteria cells can adhere to the synthetic surface.

In each test, the researchers used a blue laser light with a wavelength of 458 nanometres to create photoluminescence.

They detected a spectral line emitted by neutral helium gas at a wavelength of 1083 nanometres.

Pure blue, in the middle, has a wavelength of 470 nanometres.

Human eyes perceive blue when observing light with a wavelength between 450 and 495 nanometres.