Previous in Forum: Eclipse, Friday 20th March 2015   Next in Forum: Distance Between Two Points By Change of Coordinates by Shifting Axes Near Or Far
Close
Close
Close
11 comments
Rate Comments: Nested
Guru

Join Date: Oct 2006
Location: 44.56024"N 15.307971E
Posts: 8277
Good Answers: 270

A Photo of Light and Wave Duality

03/03/2015 4:16 PM

A recent advance has yielded a photograph of the dual nature of light.

1 Picture worth a thousand words:

See it here:

http://www.laboratoryequipment.com/videos/2015/03/researchers-finally-see-light-both-particle-wave?et_cid=4443075&et_rid=367738269&location=top

__________________
"A man never stands so tall as when he stoops to help a child." "Never argue with a stupid person.They will drag you down to their level and beat you with experience" "To create an apple pie from scratch, first you must create a universe"
Register to Reply
Interested in this topic? By joining CR4 you can "subscribe" to
this discussion and receive notification when new comments are added.
Guru

Join Date: Mar 2007
Location: by the beach in Florida
Posts: 33392
Good Answers: 1817
#1

Re: A photo of light and wave duality

03/03/2015 4:40 PM

So it's a squiggly line that looks like a waffle....?

__________________
All living things seek to control their own destiny....this is the purpose of life
Register to Reply
Guru
Engineering Fields - Optical Engineering - Member Engineering Fields - Engineering Physics - Member Engineering Fields - Systems Engineering - Member

Join Date: Apr 2010
Location: Trantor
Posts: 5363
Good Answers: 647
#3
In reply to #1

Re: A photo of light and wave duality

03/03/2015 5:53 PM

String theory! I knew it!

__________________
Whiskey, women -- and astrophysics. Because sometimes a problem can't be solved with just whiskey and women.
Register to Reply
Guru

Join Date: Oct 2008
Posts: 42355
Good Answers: 1693
#2

Re: A photo of light and wave duality

03/03/2015 4:47 PM

That's too much of a reach for me.

Maybe later tonight after a few tequila shots, beer back.

I'm working on a bottle of Partida Elegante.

Register to Reply
Guru

Join Date: Apr 2010
Location: About 4000 miles from the center of the earth (+/-100 mi)
Posts: 9912
Good Answers: 1141
#4

Re: A Photo of Light and Wave Duality

03/03/2015 6:38 PM

"While this phenomenon shows the wave-like nature of light, it simultaneously demonstrated its particle aspect as well. As the electrons pass close to the standing wave of light, they "hit" the light's particles, the photons. As mentioned above, this affects their speed, making them move faster or slower. This change in speed appears as an exchange of energy "packets" (quanta) between electrons and photons. The very occurrence of these energy packets shows that the light on the nanowire behaves as a particle."

Yeah, but...

If light is acting like a wave with an oscillating electric and magnetic field, would not these fields affect the motion of the electrons? I'm thinkin' that this explanation maybe is not the proof.

Register to Reply
Guru

Join Date: Mar 2007
Location: by the beach in Florida
Posts: 33392
Good Answers: 1817
#5
In reply to #4

Re: A Photo of Light and Wave Duality

03/03/2015 6:55 PM

A wave is just a string of particles moving at varying speed....?

This 3D graph shows the relationship between three different velocities: v, u and U, where v is the velocity of a second observer measured by a first observer, u is the velocity of a moving particle measured by the second observer, and U is the relative velocity of the particle to the first observer. Image credit: Hill and Cox. ©2012 The Royal Society
Read more at: http://phys.org/news/2012-10-physicists-special-relativity.html#jCp

http://phys.org/news/2015-03-breakthrough-oled-technology.html#ajTabs

__________________
All living things seek to control their own destiny....this is the purpose of life
Register to Reply
Guru

Join Date: Oct 2006
Location: 44.56024"N 15.307971E
Posts: 8277
Good Answers: 270
#7
In reply to #5

Re: A Photo of Light and Wave Duality

03/03/2015 10:24 PM

A long long time ago,in a time before the current knowledge explosion,I was taught that

particles on a wave do not move very much at all,or move very slowly, as the wave

propagates at a much higher velocity,in this case, C.

The wave form we see is merely a representation of energy flow disturbing the ocean of

space time surrounding it.

The photons are not the energy itself,but packets of potential.

__________________
"A man never stands so tall as when he stoops to help a child." "Never argue with a stupid person.They will drag you down to their level and beat you with experience" "To create an apple pie from scratch, first you must create a universe"
Register to Reply
Guru
Popular Science - Evolution - New Member Popular Science - Weaponology - New Member

Join Date: May 2006
Location: The 'Space Coast', USA
Posts: 11119
Good Answers: 918
#8
In reply to #4

Re: A Photo of Light and Wave Duality

03/04/2015 8:04 AM

I have not read the linked article, but if I understand your question correctly, the wave-like nature of light from a quantum physics perspective refers to a probability wave, not a physical wave.

The duality of a photon or any other particle is that it will exist as a probability wave until a "measurement" is performed, at which point the probability wave collapses and the photon takes on the attributes of a particle.

The probability wave is nothing more than a statistical mathematical representation of the photon's velocity, position, spin, or orbital angular momentum (OAM), etc., and not the frequency of the photon.

Register to Reply
Guru

Join Date: Oct 2006
Location: 44.56024"N 15.307971E
Posts: 8277
Good Answers: 270
#9
In reply to #8

Re: A Photo of Light and Wave Duality

03/04/2015 10:16 AM

How could they phtograph a probability wave?

The link seems to say they got a photo of both particle and wave.

I don't understand all I know about this matter.

In the double slit experiment, I am sure the size of the slit and the spacing is critical at some point,as well as the shape of the slit.

What about two holes,of various shapes,sizes,and spacing?

Will this affect the outcome?

If so,in what manner?

A wave of water is really composed of molecules,(particles),yet it behaves as a wave,not a particle.

If you forced the wave of water through a sufficiently small hole, it would respond like a particle,would it not?

Perhaps the slit is "shattering" the photon into smaller packets that reform as a wave on the other side of the slit.

Since they are traveling at C,this process would be unobservable,only the results.

__________________
"A man never stands so tall as when he stoops to help a child." "Never argue with a stupid person.They will drag you down to their level and beat you with experience" "To create an apple pie from scratch, first you must create a universe"
Register to Reply
Guru
Popular Science - Evolution - New Member Popular Science - Weaponology - New Member

Join Date: May 2006
Location: The 'Space Coast', USA
Posts: 11119
Good Answers: 918
#10
In reply to #9

Re: A Photo of Light and Wave Duality

03/04/2015 10:41 AM

The wave-like function of light will behave precisely like diffraction when encountering an edge. The size and shape of the aperture will simply affect the shape or pattern of the diffraction.

Photons are a class of particle called Bosons. They are elementary particles that can not be subdivided further. At least we have not observed anything at the energy levels we are able to create in the lab. I think the Standard Model does not predict any other sub-particles for the family of bosons.

Photons are simply a mechanism to transfer energy, actually a force carrier of the electromagnetic force, so a photon can carry energy from gamma-rays down to low frequency radio waves. People tend to equate a photon to the visible spectrum of light, but it has a much wider spectrum than that.

When I get a chance I'll read the article later. Hopefully there will be a link to an actual scholarly paper as authors that write news stories like that try to dumb down the facts to something they think they can understand. Usually such reporters fail spectacularly at such ventures and that is why people get really confused after reading them.

Register to Reply
Anonymous Poster #1
#11
In reply to #10

Re: A Photo of Light and Wave Duality

03/04/2015 1:21 PM

Photons are a class of particle called Bosons. They are elementary particles that can not be subdivided further...

By the way, what means, in Greek, atom?

Register to Reply
Guru

Join Date: Apr 2010
Location: About 4000 miles from the center of the earth (+/-100 mi)
Posts: 9912
Good Answers: 1141
#6

Re: A Photo of Light and Wave Duality

03/03/2015 9:12 PM
Register to Reply
Register to Reply 11 comments
Copy to Clipboard

Users who posted comments:

Anonymous Hero (2); Anonymous Poster (1); HiTekRedNek (2); lyn (1); Rixter (2); SolarEagle (2); Usbport (1)

Previous in Forum: Eclipse, Friday 20th March 2015   Next in Forum: Distance Between Two Points By Change of Coordinates by Shifting Axes Near Or Far

Advertisement