Optics Forum

Post thread

Threads

Graduate Boundary conditions for EM wave transmission at multiple interfaces

  • Kontilera
  • · Replies 3 ·
Replies
3

Graduate Calculating diffraction patterns

  • Gobil
  • · Replies 4 ·
Replies
4

Undergrad Reflection angle for two points at different distances from a surface

  • becka221
  • · Replies 2 ·
Replies
2

Undergrad Why frequency stays the same during transmission and reflection

  • AlonsoMcLaren
  • · Replies 1 ·
Replies
1

Graduate Where does the photon come from when an electron transitions to a lower energy level?

  • Naveen345
  • · Replies 36 ·
2
Replies
36

Graduate Lightspeed - Spaceship on a lever theory.

  • GideonRey
  • · Replies 9 ·
Replies
9

High School Does the single diffraction work for sound wave

  • Deathnote777
  • · Replies 2 ·
Replies
2

Undergrad Optic lens to collimate/focus light from a LED.

  • David_woo
  • · Replies 3 ·
Replies
3

Graduate What happens when two light beams collide head-on?

  • junguo93
  • · Replies 43 ·
2
Replies
43

Undergrad Why doesn't a tungsten light bulb have discrete spectral lines?

  • barryj
  • · Replies 8 ·
Replies
8

Undergrad Eyepiece - Huygens versus Ramsden

  • thedy
  • · Replies 3 ·
Replies
3

Undergrad Why does a single slit produce bright and dark bands?

  • GeneralOJB
  • · Replies 4 ·
Replies
4

Undergrad How fast must an infrared remote approach for its light to appear red?

  • genq
  • · Replies 3 ·
Replies
3

Undergrad Confusion about light exerting a force

  • pigtwo
  • · Replies 3 ·
Replies
3

High School Why if a ray pass though different materials its direction changes?

  • scientifico
  • · Replies 1 ·
Replies
1

Graduate How to Calculate Dimensions for a Magnifier and Thin Prism Working Together?

  • kingkahuka
  • · Replies 1 ·
Replies
1

High School Can light reflect in space without a surface?

  • poisant
  • · Replies 10 ·
Replies
10

Graduate How can light move through spacetime if it experiences no time?

  • JustaThinker
  • · Replies 15 ·
Replies
15

Undergrad How Do You Calculate the Percentage Transmission Using the Beer-Lambert Law?

  • lagotuna
  • · Replies 1 ·
Replies
1

Graduate Plotting the polarization ellipse

  • patmyer1
  • · Replies 4 ·
Replies
4

Graduate Does the Transmission Coefficient Affect Phase Relationships in Optics?

  • Niles
  • · Replies 2 ·
Replies
2

High School Why do white objects show double reflections in mirrors?

  • Tntgsh
  • · Replies 2 ·
Replies
2

Graduate Interference/Difraction wrong consideration

  • jaumzaum
  • · Replies 1 ·
Replies
1

Graduate Reverse calculation of radius and principal planes of thick lens

  • taimoortalpur
  • · Replies 1 ·
Replies
1

Undergrad Handwaving to match orders of magnitude

  • swle
  • · Replies 11 ·
Replies
11

Graduate Speed of light - causality - etc

  • DwithQs
  • · Replies 2 ·
Replies
2

High School Lens - What physical features makes a lens thin?

  • Puneeth423
  • · Replies 10 ·
Replies
10

Graduate Are the photons we interact with actually anti photons?

  • stefanuus
  • · Replies 7 ·
Replies
7

Undergrad How can scientists measure the speed of light?

  • physicsguy13
  • · Replies 20 ·
Replies
20

Undergrad Build a Home Laser Engraver for Aluminum w/ LasersTEA

  • pml87
  • · Replies 1 ·
Replies
1

Undergrad Power in beam of light given amplitude

  • Cspeed
  • · Replies 3 ·
Replies
3

Undergrad Where does interference occur in light waves?

  • jaumzaum
  • · Replies 87 ·
3
Replies
87

Light decomposing when moving your eyes

  • matiasmorant
  • · Replies 11 ·
Replies
11

Undergrad So when i see white light, is it really just seven different photons?

  • jaydnul
  • · Replies 16 ·
Replies
16

Graduate Do different wavelengths interfere in a double slit experiment?

  • jaumzaum
  • · Replies 11 ·
Replies
11

Undergrad Functioning of a compound microscope

  • rishch
  • · Replies 16 ·
Replies
16

Undergrad Proof That {sin i/sin r} = Refractive Index

  • Puneeth423
  • · Replies 1 ·
Replies
1

Undergrad Relative Abundance of Light Frequencies?

  • mishima
  • · Replies 10 ·
Replies
10

Graduate Dodgy step in the Far field approximation

  • Loro
  • · Replies 5 ·
Replies
5

Graduate Can an electron emit a single photon without violating conservation laws?

  • cragar
  • · Replies 2 ·
Replies
2

Undergrad How Does an Astronomical Telescope Form an Image at Infinity?

  • rishch
  • · Replies 1 ·
Replies
1

Undergrad Formation of spectrum of colors when light passes through a flat pane of glass

  • rishch
  • · Replies 10 ·
Replies
10

Undergrad Focusing at infinity for a camera and circles of confusion

  • fisico30
  • · Replies 7 ·
Replies
7

Undergrad Why are clouds white if water droplets scatter different colors?

  • rishch
  • · Replies 5 ·
Replies
5

Undergrad Why is magnification only defined for small angles?

  • rishch
  • · Replies 14 ·
Replies
14

Graduate What happens to the bandpass of a dichroic filter when it is tilted?

  • Drakkith
  • · Replies 7 ·
Replies
7

Undergrad Focal Point Purpose in Optics: Human Eye

  • thedy
  • · Replies 1 ·
Replies
1

High School The sky's red color during sunset and sunrise

  • rishch
  • · Replies 3 ·
Replies
3

High School Does dispersion occur in reflection or total internal reflection?

  • rishch
  • · Replies 2 ·
Replies
2

Undergrad Physical significance of Refractive index

  • mikeanndy
  • · Replies 9 ·
Replies
9

Undergrad Representing violet with an RGB display

  • Warp
  • · Replies 8 ·
Replies
8

Graduate MICROSCOPY: Imaging a field of radiated light and it's source

  • einfall
  • · Replies 5 ·
Replies
5

Undergrad Why does a fish see the outside world compressed into 96 degrees?

  • rishch
  • · Replies 5 ·
Replies
5

Undergrad What is the correct sign convention for the lens and mirror formula?

  • rishch
  • · Replies 3 ·
Replies
3

High School Does total internal reflection obey the law of reflection?

  • rishch
  • · Replies 3 ·
Replies
3

High School Polarization of white light beam

  • hamdal
  • · Replies 13 ·
Replies
13

Graduate Polarized light and refraction

  • compound
  • · Replies 3 ·
Replies
3

Graduate Best attempts at measuring photon mass?

  • Barry_G
  • · Replies 10 ·
Replies
10

Undergrad Cutting a polarized conductor in half

  • Artel
  • · Replies 9 ·
Replies
9

Hellowhat is the lenticular lenses?

  • saeede
  • · Replies 1 ·
Replies
1

Graduate Gravitational force of a uniform spherical shell on a particle

  • Richard Nash
  • · Replies 2 ·
Replies
2

Graduate Stoke's model of the luminiferous aether

  • accidentprone
  • · Replies 2 ·
Replies
2

Graduate Do charged particles emit light in the Aharonov-Bohm effect?

  • cragar
  • · Replies 3 ·
Replies
3

Undergrad How Do Laser Designators Work in Military Targeting?

  • Apophenia
  • · Replies 22 ·
Replies
22

Graduate Finding B-Field Of Solenoid Slightly Off Axis?

  • jasonpatel
  • · Replies 5 ·
Replies
5

Undergrad Can Laser Amplification Be Achieved with an External Light Source?

  • wasi-uz-zaman
  • · Replies 2 ·
Replies
2

Undergrad Confusion about Fraunhofer Diffraction

  • Zarquon
  • · Replies 2 ·
Replies
2

Graduate Luminance and illuminance of multiple point light sources

  • Barry_G
  • · Replies 5 ·
Replies
5

Undergrad Why an object has the color complementary to the color absorbed?

  • blaisem
  • · Replies 2 ·
Replies
2

High School Why is the speed of light different when traveling in different materials?

  • rainfvr
  • · Replies 5 ·
Replies
5

Graduate How does the Zeeman Effect contribute to laser cooling of atoms?

  • The Head
  • · Replies 4 ·
Replies
4

Undergrad Boundary conditions for an antinode?

  • BomboshMan
  • · Replies 1 ·
Replies
1

Undergrad Why Does Light Not Refract at a Convex Lens's Optical Center?

  • rishch
  • · Replies 6 ·
Replies
6

High School Image formation in concave mirrors

  • rishch
  • · Replies 4 ·
Replies
4

Undergrad Why doesn't laser light interfere with reflected light?

  • paulhunn
  • · Replies 5 ·
Replies
5

High School Why can we hear someone's voice through a closed door?

  • einstein1921
  • · Replies 7 ·
Replies
7

High School How do I test for UV light in colored LEDs?

  • R4za
  • · Replies 16 ·
Replies
16

Undergrad Phenomenon of Light Refraction

  • amk_dbz
  • · Replies 11 ·
Replies
11

What are some amazing discoveries made in the field of optics?

  • Physics7
  • · Replies 10 ·
Replies
10

Undergrad Confusion abt relation betwn time travel and speed of light

  • aritro88
  • · Replies 1 ·
Replies
1

Undergrad Is a Flat Mirror Capable of Producing a Real Image?

  • Kevin Willis
  • · Replies 5 ·
Replies
5

Graduate Measuring the Speed of Light (Foucault Method)

  • ltetor
  • · Replies 3 ·
Replies
3

High School Lateral inversion up-left and down-right confusion

  • rishch
  • · Replies 5 ·
Replies
5

Graduate Different wavelenghts one photon.

  • Crazymechanic
  • · Replies 12 ·
Replies
12

High School A Puzzling Question: Why Isn't Everything Bluer?

  • AviiNL
  • · Replies 5 ·
Replies
5

Graduate Ray tracing - how to numerically integrate the equation of the ray

  • carlos-carlos
  • · Replies 1 ·
Replies
1

Undergrad How quickily does a photon reach c?

  • Neghentropia
  • · Replies 27 ·
Replies
27

Graduate Spectral transmittance measurement

  • MG_xy
  • · Replies 2 ·
Replies
2

Undergrad Why Does the Image in a Plane Mirror Appear to Move at a Different Speed?

  • MoniMini
  • · Replies 7 ·
Replies
7

Graduate Nanoantennas refractive-index sensing

  • vst98
  • · Replies 1 ·
Replies
1

Undergrad Can materials act as a low pass filter for laser beams?

  • m0022l
  • · Replies 2 ·
Replies
2

Graduate How do I calculate the illuminated spot on specimen in optical microscope?

  • tr111
  • · Replies 4 ·
Replies
4

Undergrad Are Both Angles in Young's Double Slit Experiment Equal?

  • member 392791
  • · Replies 4 ·
Replies
4

Undergrad A strange optics (or math) problem

  • mAtUxAz
  • · Replies 7 ·
Replies
7

Graduate Could a man hold sustained flight using sound?

  • Astro_Will
  • · Replies 3 ·
Replies
3

Undergrad Are photons particles of light or just part of EM radiation?

  • geordief
  • · Replies 7 ·
Replies
7

Undergrad Is it possible for the index of refraction to be zero in Snell's law?

  • Jimmy Chung
  • · Replies 2 ·
Replies
2

High School Visible light wavelength discrepancy on the EM spectrum?

  • hardweinberg
  • · Replies 9 ·
Replies
9

Graduate Principles of Flight - Heavy aircraft vs Light aircraft

  • yippy ki yay
  • · Replies 5 ·
Replies
5

Graduate Collimating incoherent light emitted by a LED

  • jcfutbal
  • · Replies 7 ·
Replies
7