Optics Forum

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What are the amplitudes called for blue visible light, and microwaves?
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3K
The Color of a Mirror: A Physics Discussion
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8
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Increasing the divergence of a laser.
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1
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3K
Finding the Index of Refraction from Pressure & Temp
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7
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Why can’t longitudinal waves be polarized?
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11K
Why do photons travel at the speed of light without having mass?
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Cellphone rings inside microwave oven
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Energy conservation in wave interference
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Interaction of modulated lasers
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Atmospheric Scattering Problem
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Confused about Polarity of Induced EMF (Lenz Law)
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Optical pyrometers - advantages and disadvantages?
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How Do Light Rays and Mirror Equations Affect Image Formation?
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3
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8K
Does light speed apply to all waves traveling in vacuum?
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13
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8K
Snell's Law: Origins and Applications
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What lens shape gives perfect focus?
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9
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8K
Can Light Move Faster Than the Speed of Light on a Huge Circular Screen?
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10
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What Would a Universe Without Light Look Like?
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17
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What does a light bulb in vacuum look like?
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11
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Convex Lens and Light Refraction
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Can Light's Acceleration Be Changed?
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11
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What causes a boomerang to flatten out in flight
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2K
Is it possible to build a toy boat powered by high-power LEDs?
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2
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3K
Why does a (laser) light beam not disperse?
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6
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12K
Optics & Projection: Questions on Triplet Lens & LCD Panel
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6
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Light transmission through glass.
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5
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How far the light can be shine?
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13
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[thin films] (Macleod's) phase-shift upon reflection
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Collimating beam with optical axis
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Good resource for understanding light waves?
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8
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Does the Photon Mass of the Universe Add Up?
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6
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3K
Do Photons Decay? Cosmic Event Horizons Explained
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5
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What is the speed of light measured relative to?
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14
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3K
Dandelion turned white in elevator light
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3
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Superposition, interference and mathematical description
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5
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Photon momentum and lasers transfering energy
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19
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If something moved at the speed of light
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4
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An assumption about the speed of light I .
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8
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Total internal reflection (T.I.R.)
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4
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4K
Can something exceed the speed of light?
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4
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Reflection Diffraction Gratings
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1
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3K
Help evaluate the ball lightning energy
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1
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2K
CO2 laser and sigarette smoke question
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5
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2K
Does Opaque Material Block Laser Radiation?
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6
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3K
How Does Temperature Gradient Affect Refractive Index in Fluid Thermodynamics?
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7
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4K
Formula for Paper Airplane Flight?
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4
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10K
Manipulating Light Wavelengths: Can Light Be Shortened?
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13
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Pentration of light in cladding from a waveguide
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15
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3K
Why does light intensity decrease when light passes through a glass block?
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Vector of magnitude m making angles alpha, beta and gamma with i,j,k
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So I was thinking about Light, right ?
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8
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2K
Reflection of light - the physics of a mirror
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3
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Laser through optic fiber - out before through
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7
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4K
Comparing Radio and Light Waves: Is EM Radiation Misleading?
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18
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20K
Does light have the ability to choose its path using Fermat's principle?
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2
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Intensities and magnitudes in natural science
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What happens when two light beams collide ?
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15
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Snell's law with a complex refractive index
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5
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Solving the Flight of a Pencil Problem
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15
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What Would You See in a Mirrored Sphere?
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17
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7K
Gravity field phenomenon is the curved light ray ?
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4
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3K
What Causes the Strange Laser Effects from Interference and Reflection?
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5
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Add Light? Possible with Lasers?
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12
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Light Diffraction: Explaining Airy Equation
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4
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Photon Absorption: Does Energy Matter?
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What Causes the Phase Change of Pi During Reflection at the Atomic Level?
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3
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Why doesn't light go faster than it does?
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5
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3K
Is there such a thing as in-phase and coherent white light?
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5
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Projecting Video Onto Two-Way Mirror
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1
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Why don't light waves interfere when traveling in opposite directions?
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9
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Can Beat Frequencies Affect Light?
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3
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Do all light frequencies travel together at the same speed?
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6
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Limit below which we cannot detect light?
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12
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4K
Solve Plano-Convex Lens Lensmaker's Equation
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14K
Laser Plasma: Basics & Theory Explained
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2
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Why Do Random Flickering Laser Patterns Appear When Viewed from an Angle?
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2
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2K
How do i measure light frequency?
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14
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Duration of wave packet (photon) vs coherent time
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4
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Exploring Light Transmission with Lasers & Optical Fibers
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5
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Can Flour Affect the Measurement of Light's Speed?
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2
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Why some materials reflect light more than others?
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1
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Scattering in water or atmosphere
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Coherent time vs duration time of the wave packet (photon)
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Superposition of position functions
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Light & Dark: What Happens When Light Comes In?
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6
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How does interference and medium affect the use of drums?
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Visibility of laser light in mist of water particles
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Why silver atoms reflect light?
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The length of laser's optical cavity. Multiple of wavelength?
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4
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7K
Rainbow: Viewing Rainbows from a Lowflying Plane
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7
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What happens to Snell's Law when considering the atomic properties of materials?
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2
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What Happens When Interfering Polarized Light Waves in X and Y Directions?
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7
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7K
Reverse Diffraction Research: Latest Findings
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3
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4K
Build a Radio Wave Generator: How-To Guide
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2
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15K
What's the shape of a microwave beam?
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4
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4K
A question about meaning of polarisation of light
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6
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4K
Scattering and wavelength dependence
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2
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3K
Question about Herschel experiment which discover Infra red light
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3
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5K
What are the heaviest and lightest particles?
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26
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24K
Group velocity and reflective index relationship
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2
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3K

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