Optics Forum

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Mirror Box & Daylight: What Happens?
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2K
Refractive Index of Gold at Microwave Frequencies
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4K
White light to different colors
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2
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Does refraction lead to energy loss
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1
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3K
Optics question: light reflecting off a colored surface
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1
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Using Axial Ratio AR to predict R or L hand polarization.
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1
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Superposition of waves, result visible?
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6
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Magnifying Glass and Eye Glasses Comparison
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6
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Light Reflection in a Mirror Cube
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24
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What Happens When Light Hits a Mirror Traveling Near the Speed of Light?
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7
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Are we not already travelling at the speed of light?
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Help make sense of this polarization explanation by Cal Tech
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14
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Grating Spacing With Fourier Optics
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2
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Optics - Do I live in a smaller world with glasses?
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9
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Why are microwaves reflected by the door?
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18
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Light on Gloomy Day: Why is Sky Grey?
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11
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Apparent and actual radius (Optics)
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Why Does Light Reemerge with a Third Polarizer?
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22
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Laser Pulse Duration @ 2.5kHz FWHM
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12
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Can lasers create visible plasma channels in air?
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4
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Ellipsometric measurements on a mirror.
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1
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LED Outdoor Lighting Solutions - Bob's Story
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5
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3K
Why can't the focus of a plane mirror be virtual like in a concave mirror?
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2
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3K
Does Light Have Mass? Weight of Photon Explained
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6
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Flight of a badminton shuttlecock
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7
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Regarding transmission and reflection of EM-waves
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3
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Calculating diffraction patterns
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4
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Calculating Reflection angle in a 2D plane.
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2
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2K
Why frequency stays the same during transmission and reflection
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1
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2K
Emission of a Photon: Origin and Role of Electron Constituents
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36
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8K
Lightspeed - Spaceship on a lever theory.
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9
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4K
Does the single diffraction work for sound wave
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2
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3K
Optic lens to collimate/focus light from a LED.
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3
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3K
What happens when light hits light?
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43
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Why doesn't a tungsten light bulb have discrete spectral lines?
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8
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6K
Understanding the Single Slit Diffraction Pattern
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4
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Confusion about light exerting a force
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3
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How to Calculate Dimensions for a Magnifier and Thin Prism Working Together?
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1
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Light reflection without a surface
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10
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2K
How Does Light Move Through Space-Time If It Experiences No Time?
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15
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Plotting the polarization ellipse
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4
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3K
Teeth double reflection in mirrors
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2
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Interference/Difraction wrong consideration
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1
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Reverse calculation of radius and principal planes of thick lens
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1
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3K
Handwaving to match orders of magnitude
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11
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Speed of light - causality - etc
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2
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Lens - What physical features makes a lens thin?
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10
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Are the photons we interact with actually anti photons?
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7
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How can scientists measure the speed of light?
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20
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Build a Home Laser Engraver for Aluminum w/ LasersTEA
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1
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Power in beam of light given amplitude
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3
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Where does interference occur in light waves?
2
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87
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12K
Light decomposing when moving your eyes
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11
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So when i see white light, is it really just seven different photons?
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16
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4K
Can 2 light sources of different wavelenghts interfere one in another?
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11
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3K
Proof That {sin i/sin r} = Refractive Index
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1
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2K
Relative Abundance of Light Frequencies?
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10
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2K
Can an electron emit a single photon without violating conservation laws?
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2
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Formation of spectrum of colors when light passes through a flat pane of glass
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10
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4K
Why is magnification only defined for small angles?
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14
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3K
Does dispersion of light occur in reflection?
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2
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Physical significance of Refractive index
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9
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17K
MICROSCOPY: Imaging a field of radiated light and it's source
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5
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3K
What is the correct sign convention for the lens and mirror formula?
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3
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4K
Refraction: Reflection after passing the critical angle
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3
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Polarization of white light beam
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13
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Polarized light and refraction
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3
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Best attempts at measuring photon mass?
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10
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Cutting a polarized conductor in half
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9
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Hellowhat is the lenticular lenses?
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1
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Efficiently calculating the magnitude of gravitational force
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2
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Question about light emission.
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3
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How Do Laser Designators Work in Military Targeting?
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22
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6K
Finding B-Field Of Solenoid Slightly Off Axis?
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5
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Can Laser Amplification Be Achieved with an External Light Source?
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2
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Confusion about Fraunhofer Diffraction
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2
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Luminance and illuminance of multiple point light sources
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5
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Why is the speed of light different when traveling in different materials?
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5
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How does the Zeeman Effect contribute to laser cooling of atoms?
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4
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Image formation in concave mirrors
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4
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Quick question on interference of light
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5
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Sound Diffraction Explained: What Is It & How Does It Work?
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7
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How do I test for UV light in colored LEDs?
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16
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10K
Phenomenon of Light Refraction
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11
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What are some amazing discoveries made in the field of optics?
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10
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Confusion abt relation betwn time travel and speed of light
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1
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Measuring the Speed of Light (Foucault Method)
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3
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Different wavelenghts one photon.
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12
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A Puzzling Question: Why Isn't Everything Bluer?
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5
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How quickily does a photon reach c?
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27
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Why Does the Image in a Plane Mirror Appear to Move at a Different Speed?
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7
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8K
Nanoantennas refractive-index sensing
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1
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Can materials act as a low pass filter for laser beams?
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2
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How do I calculate the illuminated spot on specimen in optical microscope?
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4
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A strange optics (or math) problem
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7
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Could a man hold sustained flight using sound?
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3
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Light Explained: Photons, EM Radiation & Frequencies
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7
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Is it possible for the index of refraction to be zero in Snell's law?
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2
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3K
Visible light wavelength discrepancy on the EM spectrum?
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9
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3K
Principles of Flight - Heavy aircraft vs Light aircraft
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5
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9K

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