Optics Forum

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Graduate Varying Permittivity: Low-Freq. Electro-Optic Modulation Explained
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High School Mobile 'Lights': Impact on Signal Strength?
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Undergrad Lightbulb Differences: Investigating Unusual Outcomes
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Graduate What Initiates the Propagation of Light in Maxwell's Equations?
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Graduate Force carrier particles i.e. gravitons, photons
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Undergrad Does skin perpendicular to sun’s rays burn faster than if not perpendicular?
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Mobile phone user hit by lightning
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Undergrad Light & Black Holes: Can Massless Light be Sucked?
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Graduate Calculating Photon Count from Xenon-Arc Lamp
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Graduate Implementing Curved Fresnel Zone Plates: Analysis and Efficiency
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High School Question on young's double experiment
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Graduate Light can't travel at the speed of light?
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Graduate Designing a Holographic Projector with Sound and Laser
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Undergrad Do photons really bounce and bend? A question for physicists
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Graduate Negative permittivity of metals
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Graduate Optics, reflexion over water: why?
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Graduate Can We Turn the Universe Into Photons?
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High School Why does glass refract and reflect light?
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High School Why can't someone who is myopic see reflections clearly?
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Undergrad Spectroscopy via diffraction gratings with different spacings
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Graduate Understanding Wave Dispersion & Group Velocity: Help Needed!
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High School Thickness of lens and its focal length
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High School Is Light a Wave or Something More?
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Undergrad Changing Visible Light into IR and then back
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Undergrad Can X-Ray Ionisation Affect Non-Metals and Gases?
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High School Light and Sound Waves: Can You See Through Walls?
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Undergrad What determines how light is reflected
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Undergrad About polar vectors and pseudo vectors
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Undergrad Speed Of Light and Gravitational Force
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High School Can anyone explain dispersion to me in simple words?
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Undergrad Can the light from a rotating bike wheel bend outside of the column?
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High School What is the difference between diffraction and refraction in waves?
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Undergrad Understanding the Negative Sign in Microscope Mo Equation | HyperPhysics
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Undergrad Do Color Chords Exist in Light Similar to Sound?
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A gadget I dont know the name of
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Graduate Negative Light Speed: Explaining the Physical Meaning of -c
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Graduate Incandescence or Luminescence: How Do They Differ?
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Undergrad Questions re: absorption spectrum
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High School Question about the brightness of light and the inverse square law.
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Undergrad How to know phase difference will be of a light wave entering a thin film?
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Undergrad Why are light waves from 2 separate light bulbs incoherent?
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Undergrad Are There REALLY Infinite Colours?
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Graduate Helium 4 & Photon: Seeping & Propagation
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Graduate Understanding X-ray Attenuation: Determining Absorption Probability and Depth
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High School Understanding the Science Behind Colour: Explained Simply
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Graduate Question about light speed and something I'm having trouble understanding
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High School I want to know that light has mass or not.
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Undergrad Can we 'feel' magnitudes of distant forces?
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Undergrad What Happens to the Energy in Destructive Wave Interference?
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Undergrad Reversed spectrum through prism?
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Undergrad What Software Can Simulate Light Reflection for a Solar Heliostat Project?
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Graduate Gas Laser: Stimulated Emission and Positive Ions
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Undergrad Magnitude of acceleration on a ramp
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High School Shape of Light: Uncovering the Mystery
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Undergrad That 2 waves can overlap one and another
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Undergrad What Is Photonics and How Does It Involve Manipulating Photons?
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High School The Speed of Light: Physics and Possibilities
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Undergrad How do Photons Reach the Speed of Light?
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Graduate How Does Dye Concentration Affect Color Reflection in Art and Science?
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Graduate Is Solar Sail Propulsion Feasible with Photonic Laser Thrusters?
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High School Reading a book in the infrared
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Graduate How do I generate a diffraction pattern using FFT from a single slit?
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Graduate Gaussian beam passing through a circular aperture
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Graduate Do Photons Have Mass or Just Influence from Gravity?
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Undergrad Light travel at different speeds in different medium
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Graduate Chromatic Dispersion, and Variability of Refractive Index on Wavelength
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Undergrad Is critical angle diagram realistic?
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Undergrad What would be the force on a beam of particles from focused sunlight?
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Graduate Diffraction of a circular aperture
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Graduate Understanding Fourier Optics: From Spatial to Temporal Transformations
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Undergrad How Does Lens Shape Affect Focal Lengths?
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High School Why is Light in a Sine Wave Form?
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High School Can Two Lasers Overlap and Create a Single Point of Light?
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Undergrad Understanding Thin Lens Formula: Image Location & Projection
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Undergrad Perception of Colors: Comparing sRGB Triples & Metrics
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High School How Many Lumens Are Needed to See a Flashing LED at 500 Meters?
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High School Index of Refraction Chart: Find Many Materials & Values
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Undergrad Photonics Resources for Undergraduate Students
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High School Understanding How X-Rays Work: Explained by an Expert
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Undergrad Magnitude and Attenuation in Fields subject
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High School Why Is Putting Metal in a Microwave Dangerous?
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Graduate S11 (scattering parameter 11) of a Resonator?
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High School Young's double slit experiment (shallow slit and deep slit)
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High School RealD Glasses and the polarized effect.
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Undergrad Compton Scattering Using Newtonian Physics
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Graduate Energy <-> Mass conversion and visible light
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Graduate Conceptual difficulty with FP Resonator
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Graduate Photons and gravitational field
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Undergrad Why is the bending of waves related to wavelength?
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Graduate Is it possible to make a gravity mirror ?
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Undergrad Negative Focal Length and Convex Mirrors: Is 1/di Negative?
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High School What is the difference between mixed light and pure light?
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High School Magnifying Glass & UV Rays - Is Cooking Possible?
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Graduate Help needed: coupling light from a LED into an optical fiber
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High School Ray Diagrams: 2nd Incidence Ray - Which Is Correct?
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Undergrad Pyro Optical Pyrometer by The Pyrometer Instrument Co. - Model/Type?
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Graduate Red shift photons: where does the energy come from?
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Graduate Sellmeier equations & group delay dispersion
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Graduate Is a bullet at the speed of light lethal?
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High School What is the formula for magnitude and what exactly is it?
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