Optics Forum

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Why Do Car Headlights Start Bright But Quickly Dim?"
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Troubleshooting Laser Instrument Issues
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8
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Understanding the Use of Quarter-Wave Plates for 3D Cinema
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Left hand and right hand circular polarization
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2
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Impedance matching and reflection
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What Causes Some Substances to Absorb Light?
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Do Cars Moving Near Light Speed Appear Faster to Each Other?
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Why is the speed of light limited to a countable number
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What would things look like if i was moving as fast as light
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Reflection of Wave in Open Pipe
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What is the difference between superposition and interference?
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Head on collision between mirror image vehicles
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Does light interact with an atomic nucleus
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Lighting a candle, blowing it out and relighting it by lighting the smoke?
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3
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If light is not affected by time, then why does light cool down over time?
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Understanding Parallel Light: Answers to Your Questions
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4
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Photons observed on photographic plate - but not in eyes? Why?
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Divergence in spherical polar coordinates
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How to determine phase and amplitude after light propagation through a lens?
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Question related to Optical Waveguides and power
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Moonlight Reflection on the Sea
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Diffraction and Aperture Size: How Does It Affect Image Resolution?
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Reflection In an Arbitrary Surface
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How Do Curved Mirrors Form Clear Images?
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Is Light Truly Massless if It Can't Penetrate Walls?
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Why birefringence effect polarizes light?
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8
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Laser/Wave Phenomena Exploration
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Bremsstrahlung photon intensity and energy
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How to measure refractive index of plastic
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Possibility of a smoothly wavelength-tunable x-ray/EUV source
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Reflection in a mirror of negative curvature
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How big should a lens be to focus enough light to reach 1000 Celcius?
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2
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Laser focusing, minimum beam width
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Transparency of the sun to extremely long wavelength photons
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How does light from the sun cause atoms to vibrate?
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The universe through the eyes of a photon
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23
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Speed of Dark: Beyond Light & Time
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2
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If light is a particle, what is wavelength / frequency ?
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Contracting Wavelength via mirrors.
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I throw a metal rod (not light) into the air
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EM Destructive interference of two coherent beams
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4
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3K
Understanding single layer anti-reflection
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Can circularly polarized light interfere with linearly polarized
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6
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What Color Does a Blue Book Appear Under Monochromatic Red Light?
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Transformation Optics and Meta-materials
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Can Laser/Maser Pass Through Tissue without Interacting?
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Can anybody explain the modulation of radio waves in terms of photons?
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Which Ray Will Reach the Second Plane First?
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Light building the standard model
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68
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Speed of light in dispersive medium
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When train moves at speed of light the time becomes slow. why it happens?
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Is it possible to directly see your own reflection in water?
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Alternating violet and red fringes in Diffraction Grating
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Can we observe the motion of a photon in cartesian space?
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How do we know the speed of light exists ?
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How can infrared photons impart energy
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11
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Radio Wave Laser: Feasibility & Applications
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Can lasers affect sound waves?
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Does Glass Affect the Speed of Light's Travel from A to B?
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How Does Photon Energy Influence Exponential Attenuation in Matter?
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Optical Antennas: Experiencing Light Differenly?
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How can this laser project a point in three-dimensional space?
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10
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*Where* does sunlight scattering occur?
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35
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Will light eventually fade away given enough distance?
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Diffraction - Why must slit width be comparable to the wavelength of light?
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How does the wave-particle duality of light affect its behavior?
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Can Linear Birefringence create elliptically polarized waves?
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Light versus sound waves : velocity
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Can light enegry or waves affects sound waves?
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I was just wondering how light comes to be, from light bulbs or flash
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Thin film interference formulae
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Radome pulsed microwave questions
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4
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Observing a light source through blinds (picture included)
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Does Focal Length Differ for Convex Lenses?
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Does Total Internal Reflection Always Have Equal Angles?
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Does Total Internal Reflection Occur for Light Passing from Air into Water?
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UV/Blacklight Uses: Get Scientific Data from It!
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Can I use any watt light bulb on my ceiling without risking an explosion?
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Magnifying power v/s magnification
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What factors influence the direction of emitted photons from an atom?
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Optical trap, choosing the right condenser NA illuminate QPD
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Need to Know if Star Light is Coherent?
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3
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How does light stay in motion? Why does it travel at it's speed? Does
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Why light is a sinusoidal wave?
2
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Absorbing and reflecting light
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Objects Traveling at 60% Light Speed: A Paradox?
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Why can't we form an image with just one ray of light?
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Why isn't light induced by an antenna
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Is Light a Macroscopic or Microscopic System?
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Answer to light speed travel is E=mc2 itself?
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3
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Why is it possible to see a real image in a mirror?
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2
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Understanding what Light is (My attempt at an explanation)
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9
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How Does Coherence Affect Interference and Diffraction in Light Waves?
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7
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Can spherical aberration be avoided in lenses with non-spherical curves?
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22
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Light hitting a superconductor?
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Sunlight equivalent light bulb
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Causes of Diffraction Patterns
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How/why does diffraction occur?
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10
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Question about speed of light?
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5
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Can speed of light be faster with this?
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2K

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