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Is a lens necessary for producing focused images?
Jun 26, 2011
Replies
11
Views
2K
How is energy shared in plasma between particles and photons?
Jun 26, 2011
Replies
2
Views
2K
Exploring Optics: Understanding Photography and the Role of Lenses
Jun 25, 2011
Replies
24
Views
4K
Is Collimating a Small LED Beam Possible with Various Lenses?
Jun 25, 2011
Replies
19
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11K
Can Lightning Strike on a Car Kill You?
Jun 25, 2011
Replies
4
Views
3K
Why is there a rim of blue light around white streetlights
Jun 25, 2011
Replies
1
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2K
Can C be measured in MeV? If so is this per photon?
Jun 24, 2011
Replies
4
Views
2K
How can light accelerate to such a huge velocity?
Jun 22, 2011
Replies
4
Views
3K
What Does a Photon Waveform Look Like?
Jun 21, 2011
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14
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7K
Calculating Mass of a Photon - Why is it Zero?
Jun 20, 2011
Replies
11
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4K
When the light enters calcite it is splitting in two rays
Jun 20, 2011
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4
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3K
How one should excite Surface Plasmon Polaritons on a prism?
Jun 18, 2011
Replies
1
Views
2K
How Can Light Carry Energy Without Mass?
Jun 18, 2011
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4
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4K
If we saw the x-rays could we see whatever the x-rays machines see?
Jun 18, 2011
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1
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2K
Lyapunov exponent - order of magnitude
Jun 18, 2011
Replies
4
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3K
Dimensions and relative magnitude
Jun 17, 2011
Replies
4
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2K
How Many Photons Does a 100 W Bulb Emit Per Second?
Jun 15, 2011
Replies
5
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2K
Why does a high optical carrier feq. provide higher transmission rate?
Jun 15, 2011
Replies
8
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3K
Polarization Dependance of Vib Raman Scattering
Jun 13, 2011
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1
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1K
Classical light diffraction round corner
Jun 13, 2011
Replies
12
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3K
Calculating Nd:YAG Laser pulse energy
Jun 13, 2011
Replies
5
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11K
Can Lasers Produce Matter Through 'Collisions'?
Jun 12, 2011
Replies
4
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2K
Calc Power Output of 1 Square Meter Solar Panel on Earth
Jun 12, 2011
Replies
17
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7K
When light goes out of a torch while moving into another light source
Jun 12, 2011
Replies
4
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2K
Are solar cells more efficient for specific frequencies of light?
Jun 12, 2011
Replies
1
Views
2K
Can You Print Polarizing Filters on Glass or Plastic Substrates?
Jun 11, 2011
Replies
4
Views
2K
Barber's pole - appear faster than light?
Jun 10, 2011
Replies
2
Views
2K
Does UV-C Light Provide Better Results for Curing Resins?
Jun 10, 2011
Replies
1
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2K
Determination of microlens focal length
Jun 10, 2011
Replies
4
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2K
Can speed of light be changed ?
Jun 10, 2011
Replies
10
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4K
Can frequency of light be changed?
Jun 10, 2011
Replies
1
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2K
Calculating Velocities After Reflection
Jun 9, 2011
Replies
4
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2K
Modes of Propagation in an Optical Fibre
Jun 9, 2011
Replies
4
Views
7K
Exploring the Mystery of 'C': Is It Faster Than Light?
Jun 9, 2011
Replies
4
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5K
Shadow of light (Cardone et al)
Jun 8, 2011
Replies
1
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2K
Measuring the Optical Power of a Pulsed Source
Jun 8, 2011
Replies
4
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3K
Reflection in a hollow metal waveguide
Jun 8, 2011
Replies
1
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2K
Understanding the Science Behind Light: Exploring Its Properties and Behavior
Jun 8, 2011
Replies
4
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2K
Which Techniques Are Best for Optical Characterization of Semiconductors?
Jun 8, 2011
Replies
2
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3K
How is it we know the speed of light?
Jun 8, 2011
Replies
29
Views
6K
Understanding Diffraction in a Double Slit Experiment
Jun 7, 2011
Replies
1
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2K
Constructive Wave Interference: Can Two Waves Combine?
Jun 7, 2011
Replies
4
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2K
Refraction of Waves: Explanation & Impact
Jun 7, 2011
Replies
2
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2K
Refractive index equation help
Jun 6, 2011
Replies
5
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8K
Photon Sails in Interstellar Travel
Jun 5, 2011
Replies
6
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3K
Non-Coherent Light Diffraction through Double Slit
Jun 5, 2011
Replies
4
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9K
Gas Dynamic Mirror Fusion as Spacecraft Propulsion
Jun 5, 2011
Replies
1
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4K
Particle size in polarizing filters
Jun 5, 2011
Replies
1
Views
2K
Circularly polarized light rotation rate
Jun 3, 2011
Replies
2
Views
3K
Hypothetical situation of planck length object and lightspeed
Jun 2, 2011
Replies
2
Views
3K
Dynamic light scattering => baseline
Jun 1, 2011
Replies
1
Views
3K
Light Speed in Vacuum vs Media: A Question
Jun 1, 2011
Replies
7
Views
2K
Seeing Inside and Out: Fixing a Mistaken Mirror Placement
May 31, 2011
Replies
1
Views
2K
Optics - Transmission of plane wave at oblique incidence
May 31, 2011
Replies
4
Views
2K
What is the Difference Between Mie Scattering and Rayleigh Scattering?
May 31, 2011
Replies
13
Views
7K
Extreme Ultraviolet Wavelength Question
May 31, 2011
Replies
4
Views
3K
Polarised Window Filters: Block Light from All Directions?
May 30, 2011
Replies
8
Views
12K
Velocity of light in water cloud
May 30, 2011
Replies
1
Views
1K
Does anyone know what the smallest and longest wavelengths of light
May 29, 2011
Replies
1
Views
2K
Difference between plano-convex and biconvex lens
May 28, 2011
Replies
8
Views
37K
Laser Power vs Energy: Solving the Mystery
May 27, 2011
Replies
10
Views
21K
Calculating the Magnitude of the ISS
May 27, 2011
Replies
2
Views
4K
Why is Refraction Explained as Phase Shift in Dielectrics?
May 27, 2011
Replies
6
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3K
Interference pattern after the region of the interference
May 27, 2011
Replies
5
Views
5K
Question about polarization of light
May 27, 2011
Replies
1
Views
2K
Fraunhofer (far field) diffraction
May 26, 2011
Replies
1
Views
2K
In the following figure, the space b/w the glass lenses is filled with
May 26, 2011
Replies
4
Views
2K
Car traveling away from you and turns the lights on, speed of light
May 25, 2011
Replies
5
Views
2K
UV Laser Mirrors for 190nm Range - Find Here!
May 25, 2011
Replies
4
Views
2K
Predicting the Future and Light Speed
May 25, 2011
Replies
4
Views
2K
Photonics System: LED Signal Variation - Intensity vs. Amplitude
May 24, 2011
Replies
4
Views
2K
3D glasses and polarization, how it works?
May 24, 2011
Replies
1
Views
4K
One question when we have a unpolarized ray and enters the polarized
May 23, 2011
Replies
4
Views
2K
Defraction of Light: Why White Ray of Light Refracts in Prism
May 23, 2011
Replies
1
Views
2K
Hi Guys,When the eye sees an object, there has to be light
May 22, 2011
Replies
4
Views
3K
Objects that react physically to light?
May 20, 2011
Replies
14
Views
11K
Why is it that when we change the light from un polarized to polarized
May 20, 2011
Replies
6
Views
2K
I have a question about Neon and lasers
May 19, 2011
Replies
6
Views
3K
What Angle Must Light Make at the Water-Oil Interface to Prevent Escape?
May 19, 2011
Replies
1
Views
1K
Modulating Laser Beam with Radio Frequency - Bill
May 19, 2011
Replies
2
Views
2K
Question about optics: glasses
May 19, 2011
Replies
1
Views
2K
2 lights with unequal brightness
May 18, 2011
Replies
1
Views
2K
Mirrors for UV Laser & Invisible Lasers
May 18, 2011
Replies
1
Views
2K
Different Wavelengths of Light in Particle View
May 17, 2011
Replies
2
Views
2K
How Does Colored Light Affect Water Temperature?
May 16, 2011
Replies
5
Views
3K
Hello, light freaks: UV radiant intensity of the sun at earth surface
May 16, 2011
Replies
2
Views
4K
Advice on building material for a roadable ultralight aircraft
May 16, 2011
Replies
1
Views
3K
Can Photons Orbit Around Large Masses? Exploring Einstein's Theory
May 15, 2011
Replies
2
Views
1K
What will be the speed of light?
May 14, 2011
Replies
5
Views
2K
Dark spot in Fraunhofer diffraction
May 13, 2011
Replies
4
Views
2K
Understanding the Metal Mesh Effect on Microwaves
May 13, 2011
Replies
7
Views
4K
On Physical Lines of Force: elasticity, density and the speed of light
May 13, 2011
Replies
1
Views
3K
What causes the unpredictable path of lightning?
May 13, 2011
Replies
1
Views
1K
Designing a special wide angle lens
May 12, 2011
Replies
22
Views
5K
Could Morse Code Be Instantaneous on a Million Light-Year Pole?
May 12, 2011
Replies
11
Views
5K
Is there plasma that doesn't radiate visible light? I think the
May 11, 2011
2
Replies
36
Views
6K
Change the direction of light without using matter
May 11, 2011
Replies
16
Views
6K
Any tutorial on optic physics using 2 lenses (+ and -)
May 9, 2011
Replies
1
Views
2K
Speed of light and small distances
May 8, 2011
Replies
6
Views
2K
Variations in Refractive Index of atmosphere with altitude ?
May 8, 2011
Replies
20
Views
29K
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