Optics Forum

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Phase velocity faster than light?
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Why Does My Reflection Appear Normal on My Inverted iPad Screen?
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?Radio Waves vs Visible Light: Is it Correct?
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Sound & Light Wave Speed & Transfer: Explained
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How Does Diffraction Grating Reveal CD and DVD Storage Capacities?
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Light and Sound Waves: Theoretical Analogies and Differences
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Avoiding hotspots in a microwave oven.
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Light waves and their properties
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Intensity for circular polarised light through linear polariser
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Reflection of sound. Changes to its properties.
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Diffraction pattern's dependency on wavelength
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Is Light Wave Always Linearly Polarized?
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Interference patterns in thin films
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Why doesn't gravity speed up light?
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18
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Single and multimode optical fibers
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Reflection, transparency and Absorption
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Amount of water evaporated by laser, questionable results.
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5
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Fluid Mechanics and order of magnitude calculation
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Please help i cant understand anything about diffraction grating
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8
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Is there a limit to the amount of information a photon can carry?
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Why don't we see scattered wavelengths of light?
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Manipulating Light: Stabilizing Beams Like Lasers
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AP Physics B: Understanding Diffraction
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Does Colour Affect Light Absorption in Infrared Radiation?
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Optical Misalignment: Estimating Error and Its Impact on Focal Length
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Single slit diffraction problem
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3
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Lens Reflection: Does Light Bounce Off?
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What is the dark border around light phenomenon called?
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Understanding Light Physics: Tips and Tricks for Beginners
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Faster Than Light Travel: Theory and Possibility
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11
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Why do we see diffraction effects in radio waves but not in visible light?
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2
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995
Optical Transfer Function of a microscope
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6
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No change in wavelength of a monochromatic light
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Is the CD Phenomenon Related to Young's Fringes?
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Are photons/light a special property?
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23
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Image from object at a focal point of mirror
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Understanding X-Ray Emission from Colliding Electrons
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How Do Polarizing Filters Work?
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4
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Classical explanation of double slit polarization experiment
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8
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Anti-reflective coating confusion
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Strange reflectance from periodic structure
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18
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Optics: Whispering gallery modes in large systems
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939
What are the two polarization states in 2D light?
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How Does Light Transmit Object Information to Our Eyes?
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Acceleration of an object to the speed of light.
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Understanding Geometric Optics: The Role of Ray Intersection in Image Position
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4
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What is the blackbody problem and the ultraviolet catastrophe?
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13
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8K
Diffraction grating: arbitrary incident angle
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One Way mirror solar panel sphere.
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Does the incidence angle and refraction angle have to add up to 90
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Double and single slit experiments - parallel light beams?
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1
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Calculating laser fluence - so confused
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5
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25K
Understanding Degenerate and Hybrid Modes in Rib Waveguide Structures
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2
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Total internal reflection for a long time
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4
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Stimulated Brillouin scattering inside an optical fiber
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9
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Can a force be applied to a photon in the direction of its travel?
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13
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How Do Light, Reflection, and Images Work in Basic Optics?
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Understanding Interference of Sound Experiment
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4
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Questions about light(wave and dual nature)
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2
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Diffraction through circular apertures
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10
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Optical design for a tent camera obscura
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1
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What is the maximum refractive index for lens numerical aperture?
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3
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Which scatters light more: a sphere or a hemisphere?
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5
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Dispersion and refractive indices
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3
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Physics Experiment Involving Light - Ideas Please
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19
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Is Directivity Affected by Cavity Length in Laser Beams?
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12
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Melting Lightbulb Filaments: What Voltage is Needed?
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8
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Sound Interference Experiment: Explaining Intensity Increase
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3
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Understanding the Doppler Effect and Reflection in Motionless Media
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25
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PHYSICAL explanation of light reflection by metals
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28
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Fiberooptic Laser Doppler Velocimeter
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1
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How does photon react in reflection and refraction?
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7
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Fresnel lens project with my dad
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8
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Gravity and light: The curious case of a mobile mass and a hidden light source
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11
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Why is magnitude g instead of vector g used in range projectile
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Can a Polarizer Change the Polarization State of a Laser Beam?
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Energy conservation in identical destructive interference.
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Optimizing Tubular Optical Filter for Selective Photon Paths - Jim Adrian
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17
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Confusion about the nature of Diffraction.
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2
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Vectorial kinematic in cartesian and polar system/notanion
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10
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Collimating Sunlight: Can It Be Done?
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10
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What Causes Peaks in Reflectance Graph of Polished Silicon Wafer?
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Understanding Photons: Frequency, Energy & Wave Behaviour
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Why light is not considered as a longitudinal wave?
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10
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What Would Happen if High Light Density Hit Water?
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How to be sure that a He-Ne laser light is monochromatic
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Why do speakers emit buzzing noises when receiving a text?
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3
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Coinciding of 2F and C in ray diagram of lenses
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Attract Lightning: Can You Use an Electro-Magnet?
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3
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Measuring the speed of light with chocolate and a microwave oven
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8
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Optics question: converging lens with virtual object
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1
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9K
What happen when monochromatic light irradiated on reflective grating
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3
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What Causes Refraction in Different Media?
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31
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Why does a change in impedance cause reflection?
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2
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Nonlinear Optics Books: Recommendations for Robert Boyd Style
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Regarding modeling of light bulb circuit
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5
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Clarifying the Relationship between Convex Mirrors and Image Distance
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Neon Lamp Polarity Measurement
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4
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Reflections on a thin metal layer?
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18
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Optical path length change due to absorption
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6
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