Optics Forum

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Measuring the Speed of Light (Foucault Method)
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How Do Laser Designators Work in Military Targeting?
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22
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Finding B-Field Of Solenoid Slightly Off Axis?
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Can Laser Amplification Be Achieved with an External Light Source?
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Confusion about Fraunhofer Diffraction
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Luminance and illuminance of multiple point light sources
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Why is the speed of light different when traveling in different materials?
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How does the Zeeman Effect contribute to laser cooling of atoms?
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Image formation in concave mirrors
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Quick question on interference of light
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Sound Diffraction Explained: What Is It & How Does It Work?
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How do I test for UV light in colored LEDs?
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Phenomenon of Light Refraction
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What are some amazing discoveries made in the field of optics?
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Confusion abt relation betwn time travel and speed of light
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Could a man hold sustained flight using sound?
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Different wavelenghts one photon.
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A Puzzling Question: Why Isn't Everything Bluer?
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How quickily does a photon reach c?
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Why Does the Image in a Plane Mirror Appear to Move at a Different Speed?
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Nanoantennas refractive-index sensing
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Can materials act as a low pass filter for laser beams?
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How do I calculate the illuminated spot on specimen in optical microscope?
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A strange optics (or math) problem
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Light Explained: Photons, EM Radiation & Frequencies
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Is it possible for the index of refraction to be zero in Snell's law?
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Visible light wavelength discrepancy on the EM spectrum?
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Principles of Flight - Heavy aircraft vs Light aircraft
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Calculate light intensity after reflection/refraction
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Collimating incoherent light emitted by a LED
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Optics Problem - Maximum Dipole Emission
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4
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The diffrence between refraction of sound and light
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What does divergence in the reflectivity mean?
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Help for understand of spontaneous polarization in piezo
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Snell's Law - complex angle of refraction (need complement )
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11
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Understanding Fraunhofer Diffraction: Classical vs. Quantum Interpretation
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6
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What is Order of Magnitude and Significant figures in any measurement?
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Searching for a nice explanation: Plane Mirror
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24
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Exploring the Mystery of Massless Light: Is There an End to Its Existence?
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How Much Light Can Fiber Optic Cables Carry?
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How Does Chiral Substance Affect the Propagation and Refraction of Light?
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Reflection Grating: Exploring The Wavelength Dependence
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Double Refraction: How It Works
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Reflection in spherical mirrors
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Gamma Ray Laser, possible? Superior Weapon?
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Observing an object as it moves one lightyear away
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Suggestions for diffraction experiments?
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What kind of optics are these?
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4
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Particle or wave: What is the true nature of light?
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Polarization of Light After Reflection from Surfaces
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Sending polarerized light through light fiber that is all jumbled up.
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Transmitting visible light via optical fiber
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4
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Is There A Maximum Possible Photon Energy?
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2
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Can a spherical spinning projectile oscillate in flight?
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Do photons have momentum without mass?
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10
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One question about diffraction
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Creating Point Light Sources: Techniques, Alternatives & Bizarre Ideas
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5
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[Lab]difference between diffraction grating and linear polarizer ?
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5
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QED, partial reflection, Feynman, FTL
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Light in vacuum and inverse square law
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Faster than the speed of light paradox
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15
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Laboratory work, magnification
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Optical tweezers that not always atract but also repel
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4
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How efficient is a microwave oven
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Focal Points in Optics: Real-World Applications
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Can this in any way be considered to be a circularly polarized wave?
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4
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Question About Light and Speed of Light
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14
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Scanners and Optics Explained: Mirrors, Lens & CCD Array
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Solving Polarization Question for Electric Field in Spherical Shell
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Harnessing the Power of Photons: A Closer Look at Photon Space Propulsion
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Einstein on his discovery of the speed of light
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17
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What makes the gas lamps light a certain color?
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Effective Refractive Index - Should be simple
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Can light affected be affected by noise as other signals?I am not
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Transmission by pure scatterer layer
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Reflection and Transmission: Why Must There Be a Reflected Wave?
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Can Light Have Momentum Without Mass? A Question of Units
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Question on Photons and perception
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8
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Cheap and Good Laser Safety Glasses
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Cosmic microwave background question.
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Why should you feel lighter at equator if normal force is weaker?
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What happens to a photon wave packet when half out of a moving device?
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Exploring Optics: A Visual Guide to Understanding Light and Its Properties
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If the solenoid covers the whole length of a shake flashlight, will it light up?
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The Mystery of Atoms Releasing Photons: A Scientific Exploration
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Are there really 9,460,000 km in a light year?
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Can Yellow Light Split into Red and Green When Passed Through a Prism?
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Exploring Light Years and the Concept of Time in Physics
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Classical optics: Lambda-quarter plates
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Diffraction Transverse Wave Confusion
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Intensity of different color light & its relation to energy AND Amplitude
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Photon Speed when Bouncing off Moving Object
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Is space truly empty or is it filled with unseen forces and fields?
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7
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Is possible to build an optical trap with non-laser light?
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4
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Are there mirrors/panels capable of reflecting designated color wavelengths?
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Diffraction: Intensity in the double slit situation
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2
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Why is light affected by gravity?
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16
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Intensity - Double slit diffraction
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Exploring the Interaction Between Photon Energy and Black Holes
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12
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I with my physics lab questions about diffraction grafting
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1
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