May 21, 2012, 11:05:55 AM
Welcome,
Guest
. Please
login
or
register
.
1 Hour
1 Day
1 Week
1 Month
Forever
Login with username, password and session length
News
:
Home
Help
Search
Login
Register
Optoelectronics, Optics, Lights and Lasers
>
The Science of Light
>
Holography
>
Can light 'reflect' off other light(s)?
Pages: [
1
]
« previous
next »
Print
Author
Topic: Can light 'reflect' off other light(s)? (Read 264 times)
The_One
Newbie
Posts: 3
Can light 'reflect' off other light(s)?
«
on:
July 18, 2011, 04:47:00 PM »
I had an idea for a holographic projector where a U shaped device filled with L.E.D's that have been modified to output light like a laser.
An individual dot/pixle is created by reflecting three beams or rather where the 'laser beams' intersect
Is this actually possible? That you could see a hovering dot if three beams of light hit each other?
Like a 'laser' wavelength not normal light
Logged
YahooUser
Newbie
Posts: 7
Re: Can light 'reflect' off other light(s)?
«
Reply #1 on:
July 18, 2011, 04:59:08 PM »
No. The scattering cross section of electromagnetic waves is essentially 0: take a red beam and a green beam, make them intersect. What do you see coming out? A red beam and a blue beam => they did not interact (scatter) with each other),
Logged
A_square_E
Newbie
Posts: 4
Re: Can light 'reflect' off other light(s)?
«
Reply #2 on:
July 18, 2011, 05:06:40 PM »
If you look at a simple mechanis of reflection which is that a light wave falls on a mirrored surface, induces oscillations onto its electrons, which in turn, will radiate light back ... and then there is the incindence angle = reflection angle
however a light wave doesnt have any electrons to giv its energy too, so light might not be able to reflect light!
however, i could be wrong!
Logged
Pages: [
1
]
Print
« previous
next »
Jump to:
Please select a destination:
-----------------------------
General Category
-----------------------------
=> About PhotonicsLab.Org
=> Optical News
-----------------------------
The Science of Light
-----------------------------
=> Theory and Properties of Light
=> Optics
=> Holography
-----------------------------
Non-Coherent Light Sources
-----------------------------
=> Natural Light Sources
=> Combustion
=> Incandescent Lamps
=> Chemical Lights
=> Fluorescent Lamps
=> Gas Discharge Lamps
=> High Intensity Discharge Lamps
=> Electroluminescent Lamps
=> Radioluminescence
=> Other Light Sources
-----------------------------
Coherent Light Sources
-----------------------------
=> Gas Lasers
=> Solid Lasers
=> Liquid Lasers
=> Semiconductor Lasers
-----------------------------
General Talk
-----------------------------
=> Community chat
=> Arts Culture and Lifestyle
=> Sports Games and Entertainment
=> Science and Technology
=> Health and Medicine
Loading...