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Graduate Dopplershift, using changing optical length

  • Anton Alice
  • · Replies 1 ·
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1

Graduate Time dependent optical path length vs coherence

  • Anton Alice
  • · Replies 9 ·
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9

Undergrad General term for splitting of light into constituents

  • George Lisowski
  • · Replies 7 ·
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7

Graduate What is the Jones Matrix of a mirror at an angle?

  • Corwin_S
  • · Replies 5 ·
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5

Undergrad What Flexible Opaque Black Material is Best for Light Shrouding?

  • Khashishi
  • · Replies 8 ·
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8

Graduate In low-e glass, is infrared able to reach the low-e coating?

  • spareine
  • · Replies 1 ·
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1

Graduate Is the range of a laser beam limited by the width of its wave packet?

  • Anton Alice
  • · Replies 4 ·
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4

Graduate Common interpretation of coherence

  • Anton Alice
  • · Replies 4 ·
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4

Undergrad How does light move according to wave and particle theories?

  • Prannoy Mehta
  • · Replies 6 ·
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6

Graduate Fermat's principle seems indefinite

  • Anton Alice
  • · Replies 7 ·
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7

High School Photon question -- is it a particle?

  • thetexan
  • · Replies 41 ·
2
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41

Undergrad Project sharp shadows from LED

  • muffinator
  • · Replies 1 ·
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1

Graduate Derivative of Axial Resolution from Rayleigh's Limit

  • TS Wong
  • · Replies 1 ·
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1

Undergrad Sharpeness of shadows as evidence for light motion

  • janen13
  • · Replies 1 ·
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1

Undergrad Simple interferometry setup to map surface topography

  • FrodCube
  • · Replies 10 ·
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10

Undergrad Newton's Rings using refractive index of water

  • emmalou
  • · Replies 4 ·
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4

Graduate Cross Phase Modulation in Optical Fibers (Fiber Optics)

  • Elbereth
  • · Replies 1 ·
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1

High School Is it Possible for Light to Go Around a Planet?

  • Robin04
  • · Replies 9 ·
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9

Undergrad Does reflection occur when light refracts below the critical angle?

  • Seismic101
  • · Replies 5 ·
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5

Undergrad Light bulb in a microvawe oven

  • physnewbie
  • · Replies 2 ·
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2

Undergrad Laser vs Metal: Elimination of Matter in Blasting Holes

  • motleycat
  • · Replies 5 ·
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5

Undergrad Is Energy Conserved When an Atom Emits a Photon?

  • motleycat
  • · Replies 2 ·
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2

Graduate Why does a laser beam bend back up in a stratified salt solution?

  • Anton Alice
  • · Replies 2 ·
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2

Graduate Diffraction pattern for large number of particles

  • astrophysics12
  • · Replies 6 ·
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6

Undergrad Is it possible to create light?

  • fredreload
  • · Replies 41 ·
2
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41

Graduate Q: Calculate average length of photon path: emit->absorb

  • Buzz Bloom
  • · Replies 17 ·
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17

Undergrad Why is the reflected wave -f(-x-vt) and not -f(x+vt)?

  • simon96c
  • · Replies 2 ·
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2

Graduate Photon excitation to full orbitals

  • ngc2024
  • · Replies 9 ·
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9

High School Can Light Bounce Forever in a Vacuum Bulb?

  • Acemave
  • · Replies 4 ·
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4

Undergrad Speed around earth for constant day light

  • aiop
  • · Replies 2 ·
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2

High School Why does my food go boom in the microwave?

  • Zaqiqu
  • · Replies 1 ·
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1

Undergrad Light's Color Change in Different Media

  • harmanbir
  • · Replies 4 ·
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4

Undergrad Experimental method to quantify chromatic aberration in telescope optics

  • mishima
  • · Replies 2 ·
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2

Graduate Why is Snell's law the only solution to the wave boundary conditions?

  • EmilyRuck
  • · Replies 6 ·
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6

High School Why is clear glass see-through but not completely invisible?

  • motleycat
  • · Replies 16 ·
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16

Undergrad Refraction as an explanation for light curvature

  • omrit
  • · Replies 3 ·
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3

Undergrad Energy of UVA and UVB radiation at different elevations and latitudes

  • Caseykcraig
  • · Replies 3 ·
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3

Graduate Constant intensity maxima in double-slit interference ?

  • DoobleD
  • · Replies 8 ·
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8

High School Young's Interference experiment

  • Dembara
  • · Replies 1 ·
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1

Graduate Using lasers to create a luminous spot in transparent medium

  • Rataridicta
  • · Replies 21 ·
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21

Undergrad Why Aren't Laser Beams Bent More When Measuring the Moon's Distance?

  • fresh_42
  • · Replies 3 ·
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3

Undergrad 'Diffraction' or 'Interference' gratings ?

  • DoobleD
  • · Replies 5 ·
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5

Undergrad Amount of single photons to make white light?

  • Sterling Lutes
  • · Replies 20 ·
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20

Graduate 2 slits : diffraction always "enveloppe" of interference ?

  • DoobleD
  • · Replies 3 ·
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3

Undergrad Converting Red Light Spectrum to Blue

  • Ronie Bayron
  • · Replies 5 ·
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5

Undergrad Understanding Light Absorption in Glass: Impact on Laser Beam Penetration

  • Danyon
  • · Replies 2 ·
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2

Graduate How Does Gravity Influence the Momentum of Light?

  • Phys_Boi
  • · Replies 2 ·
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2

Graduate Does the Equation E=mc² Apply to Photons?

  • Phys_Boi
  • · Replies 5 ·
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5

Undergrad Need Aspherical Lens Equation (+20d, 55mm)

  • Raza121
  • · Replies 2 ·
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2

Graduate Evanescent light waves, energy flow and tunneling

  • Joker93
  • · Replies 5 ·
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5

Undergrad Refraction Formula For Thin Lens

  • UchihaClan13
  • · Replies 3 ·
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3

High School Very basic convergence lens question

  • Mehay
  • · Replies 1 ·
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1

Undergrad Diffraction and Wavelength Dependency

  • Jimmy87
  • · Replies 26 ·
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26

Undergrad Light travelling on curved surface

  • SataSata
  • · Replies 10 ·
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10

Undergrad What allows certain wavelengths to pass through walls ?

  • quickAndLucky
  • · Replies 6 ·
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6

High School What happens to projected light after the source stops

  • AMan24
  • · Replies 4 ·
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4

Graduate 2 layers of birefringent crystal, how many rays?

  • Lensmonkey
  • · Replies 3 ·
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3

Undergrad Energy of the summation of two sinusoidal waves

  • O.J.
  • · Replies 7 ·
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7

Undergrad Which Value to Use: % Discrepancy or Standard Deviation?

  • August Lee
  • · Replies 1 ·
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1

Graduate Can two perfect point monochromatic sources be incoherent?

  • Ahsan Khan
  • · Replies 22 ·
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22

Graduate Why Do Aerial Images of Earth Appear Blue Despite Equal RGB Scattering?

  • AlexVM
  • · Replies 6 ·
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6

Undergrad Why orange color is visible with blue LED?

  • kevin_tee
  • · Replies 11 ·
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11

Graduate How a very short λ enable light, not obliterate all shadow? (diffraction)

  • Ahsan Khan
  • · Replies 14 ·
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14

Graduate Why is the (maximum) speed of light the number it is?

  • gracie
  • · Replies 6 ·
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6

Graduate A way to plastically flip a circular polariser?

  • 1832vin
  • · Replies 2 ·
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2

Graduate Can Fiber Optic Cables Create Coherent Light Circuits?

  • vin300
  • · Replies 1 ·
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1

Undergrad What are localised and non localised fringes?

  • pratikaman
  • · Replies 2 ·
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2

Graduate What is the best laser for replicating this experiment?

  • J. Cole Kaplan
  • · Replies 2 ·
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2

Undergrad Geometrical Optics: Image Position with No Principal Axis

  • AbhinavJ
  • · Replies 1 ·
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1

High School How quickly does light turn on once you've hit the switch?

  • AaronG1995
  • · Replies 3 ·
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3

Graduate Calculate the desired incident polarization of a light beam

  • Corwin_S
  • · Replies 5 ·
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5

Graduate What is this version of the wave equation?

  • girlinphysics
  • · Replies 3 ·
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3

Undergrad Photons passing through transparent material

  • Garlic
  • · Replies 2 ·
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2

Undergrad Why is unpolarized light halved in intensity when polarized?

  • Elmer Correa
  • · Replies 4 ·
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4

Undergrad Laser that doesn't have a resonator?

  • girlinphysics
  • · Replies 5 ·
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5

Undergrad Calculating Energy Requirements for UV Light Penetration?

  • Sirsh
  • · Replies 2 ·
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2

Undergrad The Relationship Between Lens Thickness and Light Convergence/Divergence

  • Leonard123
  • · Replies 1 ·
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1

Graduate Can Fraunhofer Single Slit formula be used in this case?

  • catch22
  • · Replies 11 ·
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11

Graduate Does light have a pressure wave

  • Sachabloke
  • · Replies 8 ·
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8

Graduate Can Tachyons Travel Faster Than the Speed of Light and Alter the Future?

  • PhysicsFan11
  • · Replies 3 ·
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3

Undergrad Is Pluto's Visible Light Intensity Equal to Earth's?

  • Hobart
  • · Replies 2 ·
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2

High School Color of sky based on atmosphere density

  • aiop
  • · Replies 15 ·
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15

High School Why are images formed when rays intersect?

  • Prannoy Mehta
  • · Replies 4 ·
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4

High School Why Is There a Black Line Moving Across the Screen?

  • DennisHolland
  • · Replies 6 ·
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6

High School Magnitud VS. Component of a vector

  • almarpa
  • · Replies 1 ·
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1

Graduate Fresnel Diffraction through a straight edge

  • Vaibhav DixiT
  • · Replies 4 ·
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4

Undergrad Is Sight a 3D Illusion Created by 2D Perception?

  • RW2012
  • · Replies 33 ·
2
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33

Graduate Snell's law for an interface with variable refractive index

  • Vaibhav Sahu
  • · Replies 13 ·
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13

Undergrad How to Calculate Light Emitted from an LED Screen

  • pixelpusher
  • · Replies 3 ·
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3

Undergrad How can light oscillate without a medium?

  • Garlic
  • · Replies 4 ·
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4

High School What angle should a mirror be to redirect vertical light 90 degrees?

  • chambers.keivn
  • · Replies 2 ·
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2

Undergrad Possible non-burning visible beam mock-up?

  • szopaw
  • · Replies 13 ·
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13

Graduate Light waves with 0 amplitude due to extreme red shift?

  • ScientificMind
  • · Replies 2 ·
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2

Graduate How are reflection and refraction of light expressed at the particle level?

  • netqwe
  • · Replies 4 ·
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4

Undergrad Do Photons Move Slower in a Solid Medium? - Comments

  • ZapperZ
  • · Replies 4 ·
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4

Undergrad About wavefronts/wavelets and the formation of plane waves

  • icor1031
  • · Replies 2 ·
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2

Graduate Destructive interference and energy

  • 24forChromium
  • · Replies 3 ·
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3

Graduate Birefringence deviation angle?

  • spareine
  • · Replies 8 ·
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8

High School About atmosphere light absorbtion

  • praveena
  • · Replies 4 ·
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4

Undergrad Wave Number (k) 2pi/lambda = Radians /Unit Distance ?

  • Point Conception
  • · Replies 1 ·
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1