Optics Forum

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What Is the Difference Between Interference and Diffraction?
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Mystery of Shadows in Light - Help Solve the Puzzle!
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7
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Curious question about light/photons
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42
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Determining the light intensity in a double convex lens
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7
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Convex Lens: Image Formation at Infinity & Parallel Rays
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13
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What happens after exceeding the speed of light?
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15
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Laser Beam Propagation: Calculating Power & Radius
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8
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Optical physics and frame of reference....
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1
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What Happens to Photons and Particles in Our Universe?
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How does optical density relate to mass density and refractive index?
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Transmission of polarized light
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How does space-time curvature affect light?
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5
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Why light can't penetrate the prism with 45 degree angle
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13
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Thomson scattering and radiating power
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5
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Presumed mass content of photon as gravitational source
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3
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Destructive Interference of two waves
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6
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Faster than light travel in a vacuum chamber
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4
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Will I be able to see a monochromatic ray of light in space?
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9
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Single photon absorbed by single atom antenna
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Can You See a Photon Beam Between Two Reflective Surfaces?
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Light waves traveling through air
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Do All Forms of Light Travel at the Same Speed?
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5
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Speed of light of different wavelengths in medium
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8
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Overlaying optical field with Zernike aberration
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2
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How polarized test image cards work
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20
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Could we "catch" the light from prehistoric Earth and see dinosaurs?
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4
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Is harnessing quarks and gluons for observation a possibility in the future?
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11
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Diffraction Pattern: Why is Vertical Pattern Observed?
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15
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6K
Revolving light source and creation of angular momentum
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12
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1K
Experts in Optics: Advice needed in working with SLDs
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3
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Light Refraction: Causes & Angle Impact
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4
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How Do Homopolar Motors Work Without Current Flow?
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16
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4K
Understanding Non-Linear Optical Interference: The Role of Energy Equations"
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9
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Intensity-wavelength graph for X-ray
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1
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Explain the value of refractive index of water?
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2
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2K
Why can't light be in black color?
2
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67
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Question on laser reflection (pic included)
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6
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Objects in Optics: Image Formation Explained
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19
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Why does 2slit interference depend on wavelength?
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3
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What Determines the Size of an Image Formed at Infinity in Magnifiers?
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5
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Interaction of light with a shockwave
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3
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What is the need to find the speed of light ?
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7
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Destructive interference at a surface
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13
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Can light accelerate in vacuum?
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46
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Is starlight a TEM00 gaussian beam or plane wave?
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4
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Why does a Lever arm magnify force?
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12
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What will happen -- Mirrors on the Moon to illunimate the Earth....
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36
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How does a banana change the color of light?
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7
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How does a Resonator enhance coherence? (LASER)
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2
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Damped vs Undamped Driven Springs and superposition?
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1
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Is P-Polarization Essential for Effective Laser Cutting on Target Surfaces?
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10
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Burnout of 6300 Lumen Light Bulb: Why?
2
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52
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Radiant power of a series of light waves
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6
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1K
What is lightning proportional to?
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5
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Why Does Light Change Direction When Passing Through a Lens?
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9
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Why Infrared Light Can't Travel Easily Through Air
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2
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Average number of photons in a cubic meter
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6
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How hot does Gaseous H2O need to be to emit IR Photons?
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6
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Can a light ray be redshifted so that it contains no info
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7
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Is this wave interference? Sound mixing problem.
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6
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Why Does Light Intensity Decrease with x^4 in 2D Fraunhofer Diffraction?
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11
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Question about index of refraction
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1
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Reflective And Transparent 3D material?
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2
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Light reflected 90° out of phase, not 180°
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2
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How is light affected by the gravity of a black hole?
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3
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Are diffraction patterns additive?
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2
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Why Does My Snell's Law Demonstration Fail Using a Linear Function Approach?
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4
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How Do Lenses Exhibit Fourier Transforming Properties in Optics?
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3
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Optical lasers to photograph space
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8
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Fourier optics with concave (diverging) lenses
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6
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Why brown sunglasses filter blue light?
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7
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Understanding the Effects of Laser Interaction with Ions in Doped Fibers
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1
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Optics: Center of Fizeau Fringe? Michelson Interferometer
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4
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Phase plus Antiphase radio waves
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1
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Can refractive index of a material be less than unity?
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20
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How does light travel faster in optically rarer medium?
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2
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Optics : interference and diffraction
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5
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Why is a laser's focus limited by diffraction?
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2
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What happens at the boundary with light refraction?
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3
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Can Slowing Light Lead to Revolutionary Advances in Science?
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Can Faster-than-Light Travel Ever Be Possible?
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9
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Atmospheric Optics: Moon 22° Halo & Paraselenic Circle
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1
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Finding Degree of Linear Polarization
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5
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Fine & light particels dropped down in vacuum
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9
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Can We Reduce the Speed of Light?
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7
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Fresnel zone and reflection of light on surfaces
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5
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Diffraction of Light with Moving Slit
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18
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Mechanically, what does light intensity mean?
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2
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Why do photons behave differently than particles in scattering processes?
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4
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Solar Sail/ Mirror Redshift & Blueshift
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1
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Polarized Glasses plus Windshield Tint = Rainbows
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1
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Why is diffused light captured through V-shaped grooves?
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9
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What causes the photon to move at different frequencies?
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12
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Interference requires countable wavefields
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13
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Mass increase due to received photon
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10
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I dont understand homopolar motors
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1
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Destructive Interference of 2 Lasers?
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7
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2K
Laser triangulation / Range finder
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5
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3K
Finding a Class I Laser Pointer for a Science Fair Experiment
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8
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3K
Exact solutions for reflectance, transmittance, absorption?
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5
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2K

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