While gases are normally made from atoms or molecules, it is also possible to create a gas made from particles of light called photons.
A gas made of particles of light, or photons, becomes easier to compress the more you squash it. This strange property could prove useful in making highly sensitive sensors.
While gases are normally made from atoms or molecules, it is possible to create a gas of photons by trapping them with lasers. But a gas made this way doesn’t have a uniform density – researchers say it isn’t homogeneous, or pure – making it difficult to study properly.at the University of Bonn, Germany, and his colleagues have made a homogeneous photon gas for the first time by trapping photons between two nanoscale mirrors.
Surprisingly, the team found the gas could be compressed with no resistance, becoming easier to compress with more force. A normal gas becomes harder to compress the more you squeeze it because the molecules, forced closer together, repel each other., which allows the photons to act as both particles and waves. “These photons behave as smeared-out waves that eventually start to overlap, and then these particles become indistinguishable,” says Schmitt.
As well as investigating fundamental states of matter, Schmitt says this photon gas could be used to make highly sensitive sensors for measuring forces. “[It] would allow you to have the tiniest forces leading to an appreciable volume change that you could actually measure,” says Schmitt.
日本 最新ニュース, 日本 見出し
Similar News:他のニュース ソースから収集した、これに似たニュース記事を読むこともできます。
Report: Former A’s All-Star Chapman signs new deal, but it’s nothing like Olson’s mega contractDespite a similar track record of success, Matt Chapman’s extension with the Toronto Blue Jays looks nothing like the mega-deal Olson secured in Atlanta.
続きを読む »
Google Photos makes it easier to import and organize your pics | EngadgetIts new features include a new section that makes it easier to import and digitize old photos and videos..
続きを読む »
AT&T CEO John Stankey’s compensation rose 18% last year to $24.8 millionIt’s still less than his predecessor made during his final year as CEO.
続きを読む »
Driving on E: Why you shouldn't wait to fuel up your carAs gas prices spike, a lot of us may be tempted to drive with that fuel warning light on as long as we can.
続きを読む »
Newsom makes offer on gas rebate: $400 per registered vehicleUnder Newsom’s proposal, unveiled Wednesday, California would send registered vehicle owners $400 debit cards, limited to two rebates per person.
続きを読む »