Optics Forum

Post thread

Threads

Graduate Scattering force in optical trapping

  • pen
  • · Replies 3 ·
Replies
3

Graduate How to write coupled mode equation of a given structure

  • TimelordZhou
  • · Replies 1 ·
Replies
1

Graduate Eikonal equation and trajectory of a ray of light

  • PhilDSP
  • · Replies 6 ·
Replies
6

Undergrad A Snapshot in Time of a Photon

  • LikesIntuition
  • · Replies 13 ·
Replies
13

Graduate Pertubations To Helmholtz Equation

  • gysush
  • · Replies 1 ·
Replies
1

Graduate Ray tracing- Is luminance being traced?

  • kingsna1
  • · Replies 1 ·
Replies
1

Undergrad Begineers' books on Photonic Stuctures/ Crystals

  • shpongle
  • · Replies 1 ·
Replies
1

High School Do photons travel in wave-like patterns?

  • shreder
  • · Replies 17 ·
Replies
17

Graduate Why in Huygens–Fresnel, Point source should be as small as wavelength?

  • payam
  • · Replies 5 ·
Replies
5

Graduate Compton scattering and momentum

  • johann1301
  • · Replies 7 ·
Replies
7

Graduate Calculate % Excitation of Sample X w/ Laser Pulsed Source

  • sciphys1
  • · Replies 1 ·
Replies
1

Graduate Calculating Light Intensity in Diffraction Orders

  • u0362565
  • · Replies 6 ·
Replies
6

Undergrad Single Slit Diffraction effects

  • PFuser1232
  • · Replies 18 ·
Replies
18

Undergrad Difference between physical reach and logical reach of fibre optic

  • accidentprone
  • · Replies 1 ·
Replies
1

Undergrad Why are h and h' positive but s and s' have opposite signs in the lens equation?

  • negation
  • · Replies 5 ·
Replies
5

Undergrad Race of Light Rays in Vacuum and Water: Winner or Tie?

  • quawa99
  • · Replies 5 ·
Replies
5

Graduate Focused diffraction and Fourier transform

  • Choisai
  • · Replies 4 ·
Replies
4

Graduate Frustrated total internal reflection: how does energy cross the evanescent field?

  • greypilgrim
  • · Replies 1 ·
Replies
1

Undergrad How does the wavelength of a water wave affect diffraction?

  • ranger275
  • · Replies 8 ·
Replies
8

Graduate Can diffraction orders occur with tilted light arrays?

  • faryafada
  • · Replies 4 ·
Replies
4

Undergrad Does optical switch have another name?

  • NewtonApple
  • · Replies 5 ·
Replies
5

Undergrad Does a white surface reflect all wavelengths of light equally?

  • Maniaks
  • · Replies 6 ·
Replies
6

Undergrad Focusing laser beams with concave and convex lenses

  • Racer_Rob
  • · Replies 11 ·
Replies
11

High School How to differentiate between refraction and diffraction of waves?

  • threy
  • · Replies 3 ·
Replies
3

Undergrad Monochromatic light vs Laser - Young's double slit

  • BOAS
  • · Replies 3 ·
Replies
3

Graduate What are Fourier transforms of optics?

  • Choisai
  • · Replies 7 ·
Replies
7

Undergrad Radio waves emitted by an inductively coupled power transfer system

  • BaPF
  • · Replies 8 ·
Replies
8

High School Can aluminum foil block the sun's UVA rays?

  • Solid Snake
  • · Replies 6 ·
Replies
6

Graduate Difference between Gaussian and Airy

  • Choisai
  • · Replies 2 ·
Replies
2

Graduate What is causing a green light to appear when shining a UV laser through glass?

  • BernieM
  • · Replies 15 ·
Replies
15

Graduate Why we use anomalous dispersion in FWM?

  • eahaidar
  • · Replies 2 ·
Replies
2

Graduate LW Infrared Trasmissivity of Air

  • ALm865
  • · Replies 3 ·
Replies
3

Graduate How Short Can a Wave of Light Be?

  • God Plays Dice
  • · Replies 10 ·
Replies
10

High School Can we see past from light from nearby galaxy?

  • danger9
  • · Replies 4 ·
Replies
4

Undergrad Phase velocity faster than light?

  • shanepitts
  • · Replies 3 ·
Replies
3

High School Why Does My Reflection Appear Normal on My Inverted iPad Screen?

  • bloby
  • · Replies 3 ·
Replies
3

High School ?Radio Waves vs Visible Light: Is it Correct?

  • kur82
  • · Replies 4 ·
Replies
4

Undergrad IR and UV absorption of materials

  • daidalos1000
  • · Replies 5 ·
Replies
5

Graduate Why does sound travel faster in denser media but light slower?

  • physics?
  • · Replies 8 ·
Replies
8

Graduate Why does second order susceptibility become zero in centrosymmetric media?

  • eahaidar
  • · Replies 1 ·
Replies
1

Undergrad Finding track spacing on CDs and DVDs using diffraction grating

  • NeoXx
  • · Replies 3 ·
Replies
3

Graduate How Does the Raman Effect Impact SSFM in Nonlinear Fiber Optics?

  • eahaidar
  • · Replies 2 ·
Replies
2

Undergrad Light and Sound Waves: Theoretical Analogies and Differences

  • alvarogz
  • · Replies 5 ·
Replies
5

Avoiding hotspots in a microwave oven.

  • sophiecentaur
  • · Replies 6 ·
Replies
6

High School Light waves and their properties

  • Qais M.
  • · Replies 5 ·
Replies
5

Graduate Overall Intensity of Destructively Interfering Waves

  • JSGandora
  • · Replies 3 ·
Replies
3

Undergrad Intensity for circular polarised light through linear polariser

  • dalind
  • · Replies 3 ·
Replies
3

Graduate Need to Refocus Projected Image Through Microscope Objective

  • bstafford
  • · Replies 4 ·
Replies
4

Undergrad Does reflected sound change frequency, intensity or wavelength?

  • buggsndirk
  • · Replies 3 ·
Replies
3

Graduate Diffraction pattern's dependency on wavelength

  • blaisem
  • · Replies 2 ·
Replies
2

High School Is Light Wave Always Linearly Polarized?

  • curious bishal
  • · Replies 2 ·
Replies
2

Graduate What SLM is suitable for correcting beam profile aberrations?

  • Choisai
  • · Replies 4 ·
Replies
4

Undergrad Interference patterns in thin films

  • haha1234
  • · Replies 4 ·
Replies
4

Graduate Why doesn't gravity speed up light?

  • Yashbhatt
  • · Replies 18 ·
Replies
18

Graduate Single and multimode optical fibers

  • u0362565
  • · Replies 4 ·
Replies
4

Undergrad What makes materials reflect, absorb or transmit EM waves?

  • Entanglement
  • · Replies 4 ·
Replies
4

Undergrad Amount of water evaporated by laser, questionable results.

  • Jarfi
  • · Replies 5 ·
Replies
5

Graduate Fluid Mechanics and order of magnitude calculation

  • Niles
  • · Replies 2 ·
Replies
2

High School What is a Wavefront? Understanding it

  • threy
  • · Replies 3 ·
Replies
3

High School Why use a convex lens to focus diffracted rays on the screen

  • smart_worker
  • · Replies 8 ·
Replies
8

Graduate Is there a limit to the amount of information a photon can carry?

  • johnny_cloud
  • · Replies 12 ·
Replies
12

Undergrad Why don't we see scattered wavelengths of light?

  • Jbeats245
  • · Replies 2 ·
Replies
2

Undergrad Manipulating Light: Stabilizing Beams Like Lasers

  • Godspanther
  • · Replies 2 ·
Replies
2

Undergrad Smallest Difference in Wavelength the Human Eye Can Notice

  • valdo333
  • · Replies 6 ·
Replies
6

High School AP Physics B: Understanding Diffraction

  • Tyrone Darryl
  • · Replies 1 ·
Replies
1

Undergrad Does Colour Affect Light Absorption in Infrared Radiation?

  • eightsquare
  • · Replies 6 ·
Replies
6

Graduate Optical Misalignment: Estimating Error and Its Impact on Focal Length

  • TW Cantor
  • · Replies 2 ·
Replies
2

Undergrad Single slit diffraction problem

  • Saado
  • · Replies 3 ·
Replies
3

High School Does light reflect off the surface of a lens?

  • haha1234
  • · Replies 3 ·
Replies
3

Undergrad Standing waves, beats and interference: what's the difference?

  • raghavK.dua
  • · Replies 6 ·
Replies
6

High School What is the dark border around light phenomenon called?

  • xconwing
  • · Replies 2 ·
Replies
2

Undergrad Can massless photons be grouped into solid light, and does convergent light become denser?

  • springbottom
  • · Replies 3 ·
Replies
3

Graduate Kramers-Kronig relations for the wavenumber

  • big_gie
  • · Replies 1 ·
Replies
1

Graduate Can warp bubbles enable faster than light travel?

  • bigbadbez
  • · Replies 11 ·
Replies
11

Undergrad Why do we see diffraction effects in radio waves but not in visible light?

  • aaaa202
  • · Replies 2 ·
Replies
2

Graduate Missing cone problem in wide-field microscope OTF

  • u0362565
  • · Replies 6 ·
Replies
6

Undergrad No change in wavelength of a monochromatic light

  • devendra
  • · Replies 6 ·
Replies
6

Undergrad Is the CD Phenomenon Related to Young's Fringes?

  • Roodles01
  • · Replies 1 ·
Replies
1

Graduate Are photons/light a special property?

  • batmanandjoker
  • · Replies 23 ·
Replies
23

Undergrad Image from object at a focal point of mirror

  • Alexander83
  • · Replies 1 ·
Replies
1

Undergrad Understanding X-Ray Emission from Colliding Electrons

  • dheeraj
  • · Replies 9 ·
Replies
9

Undergrad How Do Polarizing Filters Work?

  • darrenw91
  • · Replies 4 ·
Replies
4

Graduate Classical explanation of double slit polarization experiment

  • DParlevliet
  • · Replies 8 ·
Replies
8

High School Why do two close vertical lines create an interference pattern?

  • forcefield
  • · Replies 8 ·
Replies
8

Undergrad Finding intensity of fringes from two slits of given width

  • naima
  • · Replies 3 ·
Replies
3

Undergrad Anti-reflective coating thickness at non-normal incidence

  • Solarmew
  • · Replies 1 ·
Replies
1

Graduate Reflectance anomaly in V-shaped silicon gratings at wavelength-to-height resonance

  • hjelmgart
  • · Replies 18 ·
Replies
18

Graduate Optics: Whispering gallery modes in large systems

  • user3
  • · Replies 1 ·
Replies
1

Graduate Transparent Materials to Radar between 4-8 GHz

  • avocadogirl
  • · Replies 3 ·
Replies
3

Graduate What are the two polarization states in 2D light?

  • itaibh1
  • · Replies 1 ·
Replies
1

High School How Does Light Transmit Object Information to Our Eyes?

  • Patriciamsv
  • · Replies 4 ·
Replies
4

Graduate Acceleration of an object to the speed of light.

  • Hunus
  • · Replies 1 ·
Replies
1

Undergrad Understanding Geometric Optics: The Role of Ray Intersection in Image Position

  • WannabeFeynman
  • · Replies 4 ·
Replies
4

Undergrad What is the blackbody problem and the ultraviolet catastrophe?

  • kweba
  • · Replies 13 ·
Replies
13

Graduate Diffraction grating: arbitrary incident angle

  • anandr
  • · Replies 1 ·
Replies
1

Undergrad One Way mirror solar panel sphere.

  • crowseph5
  • · Replies 4 ·
Replies
4

High School Does the incidence angle and refraction angle have to add up to 90

  • applestrudle
  • · Replies 2 ·
Replies
2

Undergrad Double and single slit experiments - parallel light beams?

  • applestrudle
  • · Replies 1 ·
Replies
1

Undergrad Why do different laser fluence calculations give 0.18 to 0.7 J/cm²?

  • Tah
  • · Replies 5 ·
Replies
5

Graduate Degenerate and hybrid modes in rib waveguides

  • nordmoon
  • · Replies 2 ·
Replies
2