Optics Forum

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Diffraction, refraction & reflection
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12
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Color\Light efficiency in imaging systems
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4
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What is the Cutoff Wavelength for a Photon Passing Through a Waveguide?
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2
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2K
Greetings, how does light travel through the glass?
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1
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Scientist makes radio waves travel faster than light
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21
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Do lasers suffer R^2 propagation loss
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25
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Wavelength Function and Diffraction Orders Explained
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1
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What color would a door painted with ultraviolet paint appear to be?
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15
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Times of flight for projectiles
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2
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How Do Optic Fibers Minimize Interference While Transmitting Information?
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4
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Dissipation of Light: Measuring Intensity & Energy Loss
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1
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Sources for the diffracted waves
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4
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Why Does Light Disappear When the Source is Turned Off?
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4
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The Nature of Photons: Do They Truly Travel Between Points A and B?
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14
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Question: Time in Zero Velocity as Opposed to Light-Speed
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2
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2K
How to Safely Clean and Remove Residues from a Polarizing Beamsplitter Cube
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2
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2K
Scientists build world's first anti-laser
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1
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Kirchoff's radiative balance law and polarisation of emitted light
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5
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How Does a Mirror Work and Why Doesn't It Look Blue?
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6
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3K
Total internal reflection zero
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6
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How can i calculate the brightness of moon's light at night on the earth?
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6
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7K
Mirror Reflections: Exploring the Physics of Photons
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13
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5K
Laser Beam Destructive Interference
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5
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5K
Why do x rays travel faster than light in some states of matter
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7
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6K
Can Photons Interact with Each Other Through Electron Mediation?
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25
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7K
Multiple wavelengths of light through much larger single slit
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1
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Clarification required: polarization density and displacement field
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6
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3K
Is Light Truly Discrete or Merely a Manifestation of Matter's Nature?
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1
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Losses involved in reflection and refraction
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1
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Feynman says photons ARE particles
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19
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Laser beams in the frequency range of of microwaves
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1
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Snell's law and the concept of critical angle
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15
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10K
What happens when you pass red light through different colored glass?
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1
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Light and our rate of perception
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1
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Optical Phase Detection Techniques for Improved Noise Floors in Interferometers
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1
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2K
Entangled Frankenstein Photons
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11
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9K
Damping of a Laser Beam: Understanding the Science and Equations
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2
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3K
How photons create an image via the brain
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10
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7K
Application of microwave beams
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10
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180 degree Compton Scattering: low versus high energy initial photon
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5
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7K
Why Is Light Considered a Wave When It Travels Without a Medium?
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4
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2K
How does my microwave oven affect a wireless router?
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9
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37K
Piano & Penny vs Feather Dropped from Empire State Building
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5
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What a LASER needs to set off PLASMA (ex. in mid-air)
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1
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2K
The nature of light from colored(visual) materials
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2
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2K
If photons have no mass, then how can they travel the speed of light?
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33
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7K
Where Does the Green Go at Twilight?
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2
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Harnessing Solar Energy with Fresnel Lenses
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9
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6K
Photon Emission: Atom Collapse & Radial Forces Explained
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2
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3K
Change in velocity of light with change in optical density
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1
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3K
Cause of Lightning: What is the Real Explanation?
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4
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2K
Diffractive optics and achromaticism
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4
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2K
How does refractive index matching make a solid disappear in a liquid?
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2
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3K
Precession of a football in flight
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8
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6K
Making a Fresnel Lens for Solar Water Purification
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1
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3K
Absolute Zero & Speed of Light
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15
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12K
Can You Measure the Speed of Light at Home Like 19th Century Scientists?
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1
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2K
Determining X-ray strength and exposure
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2
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7K
How Can You Measure Light Wavelengths Using Microscope Slides and Rubber Bands?
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2
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3K
Optics & Resolution: Can I See the Peak?
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8
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2K
Fresnel Lens Optics - Questions & Answers
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1
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Is a Math/CS Background Suitable for Graduate Studies in Photonics?
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4
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Find Parallel Polarized E Field Reflection Direction
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1
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Exploring the Maximum Speed of Light
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4
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3K
Photon in a massless mirrored box
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4
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Light Frequency: What is the Lowest/Highest Frequency?
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4
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Refraction at normal incidence
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11
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E = Em sin(kx-wt) and I = T+R what wavelength is reflected wave
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2
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Reflection coefficient (osmosis)
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4
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Where does a photon distort spacetime?
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4
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Why do I look different in pictures versus a mirror?
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6
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9K
Really confused about skylight polarization
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4
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Exploring the Science Behind Lightning Formation in Clouds
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5
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2K
Help needed, no calculations just theory light and waves
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2
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2K
Best way to get a large rectangular magnifying mirror
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10
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13K
Can a High Power Laser Melt a Prism and How to Make a Reflective Missile?
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5
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Photons and human distance perception
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2
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How does UV light pass a glass bulb?
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1
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Interesting Optics Measurements?
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6
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Atmospheric Extinction of Light
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5
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Total Internal reflection is Glass Prism Question
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4
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6K
How does rainbow form? And Light Question
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18
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9K
Confused about dispersion (optics)
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9
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4K
Gravitational force affected by refraction?
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1
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2K
Please educate me on light/matter
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5
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3K
Light Reflection: Does Electric Source Affect Places A, B & C?
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5
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3K
Explaining the Speed of Light Coincidence in the Quran: A Scientific Perspective
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2
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Order of Diffraction Explained: Animation & Detailed Explanation
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4
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[optics] Those weird blue Christmas lights
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11
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Theory Q: "Persistence of Light Inside an Impenetrable Sphere?
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7
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2K
Why is there a lack of lightning during winter?
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25
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32K
Naive question about the speed of light
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4
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1K
Is it only the speed of light in a vacuum that is constant for all observers?
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20
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Calculating Optimum Distance for Focusing Diverging Light
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11
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9K
What Are Effective Methods for Mounting a Cylinder Microlens?
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4
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3K
Question about light getting through a aperture (full stops, f/#)
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6
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2K
Why is the speed of light constant?
3
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79
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14K
Reflection of light through a wine glass with water
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1
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Calibration factor of Optical BPF
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1
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Calculating focal length for aspherical lenses
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17
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20K

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