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Graduate Chief Ray Angle and Field of View

  • Frank-95
  • · Replies 21 ·
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21

Graduate Principle of Least Action for optics?

  • LarryS
  • · Replies 2 ·
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2

High School Can light be squared if it's a quantifiable number?

  • Skincognito
  • · Replies 10 ·
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10

Undergrad How was the speed of light calculated before the redefinition of the meter?

  • babaliaris
  • · Replies 8 ·
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8

Undergrad How can we visualise a half period zone inside a zone plate?

  • Vipanj
  • · Replies 3 ·
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3

Graduate How to Calculate Radius of Curvature from Thin Film Interference?

  • Emily_Khan
  • · Replies 2 ·
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2

High School Magnification of an Astronomical Telescope

  • navneet9431
  • · Replies 2 ·
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2

High School Tornado Biggest Lightning Thunder BOOM Explosion EVER

  • gary350
  • · Replies 2 ·
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2

Graduate What is the Fundamental Reason for EMR Diffraction?

  • ChrisXenon
  • · Replies 11 ·
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11

Undergrad Wave conventions: E(x,t) and E(t), E(x) confusion

  • betelgeuse91
  • · Replies 2 ·
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2

Graduate Online lecture about treatise on light by Huygens

  • PainterGuy
  • · Replies 9 ·
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9

High School Do prisms form images, and if so what is their nature?

  • navneet9431
  • · Replies 2 ·
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2

Graduate Absolute Zero v. The Speed of Light

  • Atari_Me
  • · Replies 40 ·
2
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40

Graduate Combine Products of Inertia using Superposition

  • StewB
  • · Replies 1 ·
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1

High School Question: What happens to absorbed light?

  • Boltzman Oscillation
  • · Replies 16 ·
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16

Graduate Destructive interference in Unpolarised light

  • JohnHon
  • · Replies 4 ·
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4

High School Is My Light Meter Reading in mLux or Lux?

  • otterandseal1
  • · Replies 4 ·
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4

Graduate What is the effect of a Laser on gravity

  • alaa_nasef
  • · Replies 4 ·
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4

High School What is a wavefront and how can we interpret it?

  • Bheshaj
  • · Replies 10 ·
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10

Graduate Can Light Experience Doppler-Equivalent Slingshotting Near Massive Bodies?

  • DaveC426913
  • · Replies 5 ·
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5

High School Can we get a real image of virtual objects?

  • navneet9431
  • · Replies 7 ·
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7

Graduate The microscopic expl. of how light is slowed in materials

  • DanMP
  • · Replies 2 ·
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2

Graduate Can the wavelength of a single photon be measured?

  • Jeff Root
  • · Replies 88 ·
3
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88

Undergrad Perceiving white light from Lightbulb Illumination

  • mk9898
  • · Replies 16 ·
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16

Undergrad Why do mirror images appear to have depth if they're on a flat surface?

  • Graeme M
  • · Replies 24 ·
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24

Undergrad Photons and solar wind/plasma interaction?

  • BeedS
  • · Replies 2 ·
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2

Undergrad Single-mode vs multi-mode fiber coupling

  • iVenky
  • · Replies 1 ·
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1

Undergrad Coherence, Young's double slit experiments.

  • avicenna
  • · Replies 8 ·
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8

Graduate Beginning through the Pedrotti optics book -- I have an energy question

  • universal2013
  • · Replies 1 ·
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1

Graduate Size resolution limitation on Dynamic Light Scattering

  • JD_PM
  • · Replies 2 ·
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2

High School Where Will the Image Be Formed with Light Rays Perpendicular to a Plane Mirror?

  • navneet9431
  • · Replies 2 ·
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2

Undergrad Why do higher frequency light waves bend more in a prism?

  • Hammad Shahid
  • · Replies 4 ·
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4

Undergrad Double slit displaying anti-fringes?

  • Marco Masi
  • · Replies 8 ·
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8

Graduate Is the EM field the medium for light waves

  • S Beck
  • · Replies 4 ·
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4

Undergrad Collimating an extended source to infinity?

  • nikosb
  • · Replies 5 ·
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5

Undergrad How does the interference pattern with three slits differ from two slits?

  • sqljunkey
  • · Replies 10 ·
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10

Graduate Classic double-slit experiment in a new light

  • Wrichik Basu
  • · Replies 9 ·
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9

Illustration about the "relativity" of light

  • fresh_42
  • · Replies 6 ·
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6

Graduate Does the black line represent photon propagation?

  • revv
  • · Replies 8 ·
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8

Undergrad The speed of light in glass and water

  • PainterGuy
  • · Replies 8 ·
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8

Graduate Polarizing 1mm wavelength microwave radiation

  • PhDnotForMe
  • · Replies 3 ·
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3

Undergrad Why does PPG (photoplethysmography) Use Infrared and Green Both Light

  • jaus tail
  • · Replies 4 ·
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4

Graduate What's the mode of light in single-mode fiber?

  • iVenky
  • · Replies 6 ·
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6

Graduate Reflection when intrinsic impedance matches but characteristic impedance differs

  • iVenky
  • · Replies 4 ·
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4

Undergrad Polarized Light -- Idea for headlight safety

  • Johnnyallen
  • · Replies 39 ·
2
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39

Graduate Energy of a material with permanent polarization

  • Rafael
  • · Replies 3 ·
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3

High School Why does scattered blue light reach our eyes if red light travels through unimpeded?

  • fando1234
  • · Replies 4 ·
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4

Graduate Normal incidence of light on a denser medium

  • akhila_k
  • · Replies 5 ·
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5

Graduate Conservation of angular momentum in scattering processes

  • gabu
  • · Replies 1 ·
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1

Graduate Received power for free space optics

  • Nur Ziadah
  • · Replies 5 ·
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5

Graduate FLP Vol 1 section 30.1: vectors for circular oscillator arrays and equation 30.3

  • Special K
  • · Replies 3 ·
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3

High School Why Does a Prism Periscope Focus Light Instead of Scattering It?

  • Dipra Irham
  • · Replies 6 ·
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6

Undergrad Finding the Fresnel coefficients from interface conditions

  • Cathr
  • · Replies 2 ·
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2

Graduate Varying thickness diffraction grating

  • DariusP
  • · Replies 1 ·
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1

Undergrad Can you explain this photo to me?

  • Nathan1126
  • · Replies 6 ·
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6

High School Do Photons Have Mass?

  • zuz
  • · Replies 1 ·
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1

High School Rayleigh Interferometer: Impact of Slip Placement on Interference Pattern

  • HotFurnace
  • · Replies 7 ·
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7

Graduate What is meant by Spectral and Spatial Shaping of a laser

  • Avardia
  • · Replies 1 ·
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1

Graduate Can high-energy photons attract each other gravitationally?

  • sqljunkey
  • · Replies 12 ·
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12

Graduate Optics to act as a mirror or transparent medium depending on incident angle

  • nikosb
  • · Replies 12 ·
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12

Graduate Infinite light polarizers in an array

  • sqljunkey
  • · Replies 7 ·
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7

Undergrad Reading optics diagrams: Glan-Taylor

  • pinkfishegg
  • · Replies 1 ·
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1

High School Optical effect seen on a bus: mirrored screen shows different colors

  • ThomOnTheBus
  • · Replies 12 ·
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12

Graduate Relation of laser pulse length and the Output Coupler trasmissivity

  • BPHH85
  • · Replies 5 ·
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5

Undergrad The 1.22 factor in the angular resolution

  • greypilgrim
  • · Replies 4 ·
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4

Graduate On Rayleigh Scattering and UV Light Absorption

  • mk9898
  • · Replies 4 ·
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4

High School Calculation of Light Intensity

  • tornado
  • · Replies 9 ·
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9

Graduate Why does the optical cloak use four refractions instead of three?

  • Christofer Br
  • · Replies 4 ·
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4

Graduate Optical filter that blocks infrared and allows UV?

  • sauroman1
  • · Replies 15 ·
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15

Graduate Photons on a Super Cooled Area

  • sqljunkey
  • · Replies 5 ·
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5

Undergrad Relationship between Reflectance and Albedo

  • ecastro
  • · Replies 7 ·
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7

Undergrad Are photons reflected directly or re-emitted by surface atoms?

  • JR Wakefield
  • · Replies 10 ·
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10

Graduate Question regarding Ray Optics and Probability

  • Ayan Ghazi
  • · Replies 1 ·
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1

Graduate Does Gravity Deflect Light according to Newtonian Mechanics?

  • Logic314
  • · Replies 4 ·
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4

High School Additive colour theory and "traditional" colour mixing

  • keroberous
  • · Replies 8 ·
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8

Undergrad Calculating the resolution limit using Fermat's principle

  • albertrichardf
  • · Replies 6 ·
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6

High School Why aren't we getting burned up by light?

  • bbbl67
  • · Replies 18 ·
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18

Undergrad Why Don't All Photons from Distant Stars Reach Us?

  • Martyn Arthur
  • · Replies 5 ·
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5

Graduate Are superpositions of waves with different c still waves?

  • greypilgrim
  • · Replies 2 ·
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2

Undergrad How does the inverse square law apply to a focused detector?

  • Mark Dresser
  • · Replies 18 ·
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18

Undergrad High-Energy Photon: What Happens?

  • Tumorsito
  • · Replies 6 ·
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6

Graduate Emission of light from a surface

  • Eric Bretschneider
  • · Replies 12 ·
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12

Graduate What's the difference between amplitude and magnitude in quantum mechanics?

  • ParticleMan
  • · Replies 26 ·
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26

Graduate Self-phase modulation question (nonlinear optics)

  • DariusP
  • · Replies 1 ·
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1

Undergrad What are the main laser parameters?

  • DariusP
  • · Replies 5 ·
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5

High School How does light split into colors?

  • YeeHaa
  • · Replies 53 ·
2
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53

Undergrad Print something to be seen in focus by person w/o glasses?

  • seanspotatobusiness
  • · Replies 22 ·
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22

Undergrad Geometrical Optics - Light ray angles on a spherical mirror

  • I_laff
  • · Replies 1 ·
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1

High School 2D becomes 3D when looked at by one eye

  • M Grandin
  • · Replies 36 ·
2
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36

Undergrad The change in magnitude of centripetal acceleration

  • Frawx
  • · Replies 7 ·
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7

High School The use of plano convex lens in a slide projector

  • NumFront
  • · Replies 2 ·
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2

Undergrad Wavelength of light changing in a medium

  • rpthomps
  • · Replies 52 ·
2
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52

High School What easily avaible liquids are transparent in IR?

  • Antonij
  • · Replies 1 ·
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1

Graduate Does light refract when escaping frustrated total internal reflection?

  • Christofer Br
  • · Replies 8 ·
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8

Graduate Energy lost through photon emission

  • Jim Fern
  • · Replies 24 ·
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24

Graduate "Total" destructive interference of plane waves

  • angrystudent
  • · Replies 6 ·
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6

High School Frequency of Differently Coloured Light

  • Michelleeeee
  • · Replies 4 ·
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4

Undergrad How Does Optical Coherence Tomography Work to Image Different Tissue Layers?

  • DariusP
  • · Replies 7 ·
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7

Undergrad Are these explanations for color/light-absorption correct?

  • scifi
  • · Replies 5 ·
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5

High School Why does looking through a pinhole sharpen out-of-focus vision?

  • thetexan
  • · Replies 28 ·
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28