Optics Forum

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The Mystery of the Missing Pi Phase Shift in Gaussian Beam Interference
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Why can't I kill the ice cubes >:o (in a Microwave Oven)
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10
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Is it possible to see Newton rings in CT (xray) images?
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2
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Photons always take the quickest route
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17
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Infrared rays can't be used outside for communicaiton
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4
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Effect of Collimated lens on Gauss Beam
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6
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Struggling with light calculations (incident power output)
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Blocking violet light leakage in UV lights
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7
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Does Microwave support only Line of sight communication LOS?
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2
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What is the meaning of the speed of light "squared"?
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18
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Concave mirror: Reflected rays do not meet at one point
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12
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Optical band gap of a cobalt ferrite
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6
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IF you could travel faster than light, would time cease or
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5
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Few questions on light interacting with atoms
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4
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What is causing the strange light phenomenon in my bedroom?
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6
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What causes light to bend in refraction
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3
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Trajectory of scattered alpha particle
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1
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Reflections of Light in Contact lens
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3
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Angle of incidence and refraction
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2
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Reversal of Handedness by Reflection
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1
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The principle of least action and diffraction
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1
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Intelligent Light: Communicating with Far Objects in Universe
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26
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Understanding the Relationship Between Resistance and Brightness in Lightbulbs
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7
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Does Light Speed Change in Water?
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10
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Communication faster than light or where is my mistake?
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3
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Can polarized light be recovered after passing through multiple mediums?
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3
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963
How does lightning work? (one strike or multiple strikes?)
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4
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Lower speed of light inside a transparent medium
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17
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Help with lenses for hand-made telescope
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3
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Can the speed of light change?
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10
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Can Superconducting Sheets Reflect Gravity?
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3
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Mo Anode X-ray Filtering in Mammography: Why is Mo Ideal?
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3
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Diffraction integral : incident field is FT?
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9
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No double refraction (birefrigence)?
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22
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Phase cancellation of light - Is it possible to make light disappear?
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38
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Connect two objects with visible light
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2
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Can fast objects get cooked by Cosmic Microwave background?
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4
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Exploring Negative Refraction in Lenses and its Effects on Visual Perception
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1
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916
Central force and acceleration in the polar direction
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4
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Backscatter setup - one way mirror
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1
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Best way to separate almost parallel light rays?
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11
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How does light travel through semi-opaque surfaces?
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3
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1K
How much Gravity is needed to bend light?
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2
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Incoherence of Light Sources: Phase Difference & Intensity
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3
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Why do Lasers need to be cooled?
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3
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Managing X-Ray Hardness and Low Frequency Use in Tissue Analysis
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5
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Max Photon Energy: Planck Length Lower Limit?
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9
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Infinity Focal Points of Plane Mirror
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6
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Distance between fringes in an interference pattern?
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4
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Possible alternative title:Why doesn't a 100W laser have a 100W kick back?
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15
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Source of light in Michelson-Morley experiment
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6
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Why don't clouds refract light?
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15
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Is polar coordinate system non inertial?
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7
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Total internal reflection, refractive index, optical fibres
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1
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Thickness of a partially reflective copper mirror
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4
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Refraction, wavelength and frequency
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11
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Why Does Snell's Law Give Incorrect Results When Using Certain Formulas?
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3
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Is there a limit to the amount of info in reflected light?
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63
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Do we use optics in other branches of physics ?
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2
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Why do eyes only see in straight lines? (Light Physics)
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4
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Recoil on mirrors and conservation of momentum
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12
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Laser frequency doubling range for nonlinear crystals
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1
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Diffraction, Amplitude and Phase
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5
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How Does Specular Reflection Support the Particle Theory of Light?
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13
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Exploring the Particle Theory of Light: Understanding its Mass
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25
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About light -- why when I look at a star I see rays around it?
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20
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Direction or angle independent image formation in lens
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1
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Energy from cosmic microwave background
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6
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What Are the Best Software Options for Simulating Interferometric Systems?
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1
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843
How would moving at the speed of light be perceived?
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1
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Physics of noise picked up by a radio when home lights are switched off
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2
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Orbit invariant under reflection about apsidal vectors
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1
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Light: same frequency=different wavelength?
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5
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Alternative to bifocal and varifocal spectacle lenses?
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18
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Color of Light: Frequency vs Wavelength.
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5
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Relationship between wavelength and refraction
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22
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Optical instruments: Microscope and Telescope
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3
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Photon Reflection: Questions & Answers
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3
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A source's effect on diffraction pattern
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2
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Solar Cells & Refractive Index
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16
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Mysterious Misty Rings: Unraveling the 2D View
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1
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Fermat's Principle, Snell's Law, and the Prism
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8
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Can you find lens magnification from focal length?
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13
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Mechanism for extinction by scattering?
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9
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Why waves of light don't hit each other?
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14
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Field frequency and angle of incidence in optical waveguides
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5
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Understanding Photons: How They Emit Different Types of Energy
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6
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How to Calculate d(theta0)/d(theta1) in Snell's Law?
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2
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Light what is it really ? past just another form of energy?
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How does light interact, and travel through Solid matter as
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1
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Perceived Color of objects: in White light from a TV
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21
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Binoculars and light amplification
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Please enlighten me on Newton's 3rd law
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14
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Image formation by convex lens
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5
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Beam of Light Exerts a Force, Why?
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6
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Thin Film Interference: Can You Have a Phase Difference>2pi
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4
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Laser Rangefinders: Function and Safety Explained
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22
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What Is the Difference Between Interference and Diffraction?
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6
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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
2
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42
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4K

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