Optics Forum

Post thread
High School Why angle of incidence equal to angle of reflection
  • · Replies 4 ·
Replies
4
Views
13K
Graduate Linear Component of Polarization - Mathematical transformation
  • · Replies 1 ·
Replies
1
Views
1K
Graduate What if photons were not particles at all?
  • · Replies 11 ·
Replies
11
Views
2K
High School Absorption of light in a mirror
  • · Replies 6 ·
Replies
6
Views
12K
Undergrad Light & Image: Understand Absorption Effects
  • · Replies 2 ·
Replies
2
Views
2K
Undergrad Understanding Lightning: Causes of Ionisation and its Impact on Atmosphere
  • · Replies 4 ·
Replies
4
Views
2K
Graduate Modeling index of refraction of dilute gases
  • · Replies 1 ·
Replies
1
Views
2K
Graduate Lightning & Uranium: Evidence of Abundance?
  • · Replies 2 ·
Replies
2
Views
4K
Graduate Measurement of irradiance of 2 beam interference
  • · Replies 3 ·
Replies
3
Views
1K
Undergrad How to observe Fresnel diffraction at home?
  • · Replies 1 ·
Replies
1
Views
2K
Graduate Bi-directional transport of light
  • · Replies 5 ·
Replies
5
Views
2K
Graduate Optimizing Refractive Index for Bright and Even Side Glow in Solid Core Object
  • · Replies 1 ·
Replies
1
Views
1K
Undergrad Image seen by human eye through a convex lens
  • · Replies 2 ·
Replies
2
Views
2K
Graduate Thin film interference and anti-reflective coating
  • · Replies 4 ·
Replies
4
Views
2K
Graduate Goldstein Mechanics example motion of one particle in polar coordinates
  • · Replies 5 ·
Replies
5
Views
1K
Graduate Very small holographic laser projectors and diffraction.
  • · Replies 1 ·
Replies
1
Views
2K
Graduate What is the significance of r in the intensity formula for a Gaussian beam?
  • · Replies 10 ·
Replies
10
Views
2K
Graduate Can a photon have mass when travelling through a medium?
  • · Replies 21 ·
Replies
21
Views
9K
Undergrad Seeing Beyond: How the Brain Creates 3D Image
  • · Replies 11 ·
Replies
11
Views
2K
Graduate One-dimensional Uniform plane wave
  • · Replies 1 ·
Replies
1
Views
1K
Undergrad Why does a phase shift occur on reflection?
  • · Replies 4 ·
Replies
4
Views
9K
Undergrad Why do different types of lenses have different effects on image size and focus?
  • · Replies 2 ·
Replies
2
Views
2K
Graduate Van Cittert Zernike Theorem and associated Optical phenomenon
  • · Replies 3 ·
Replies
3
Views
1K
Undergrad Difference between optical and geometrical length in optical path
  • · Replies 5 ·
Replies
5
Views
29K
High School Refraction of light in denser medium
  • · Replies 2 ·
Replies
2
Views
2K
Graduate Circular polarization phase difference
  • · Replies 5 ·
Replies
5
Views
2K
Graduate What Lenses Are Needed for Minimal Movement and Infinity Focus?
  • · Replies 3 ·
Replies
3
Views
2K
Graduate The masking effect of the sky scattering of visible light
  • · Replies 3 ·
Replies
3
Views
2K
Graduate Where do I find Nonlinear Susceptibility Tensor Values?
  • · Replies 1 ·
Replies
1
Views
1K
Graduate Optical Transfer Function of a microscope
  • · Replies 3 ·
Replies
3
Views
2K
Graduate What is the refractive index of asphalt and its relation to polarization?
  • · Replies 12 ·
Replies
12
Views
7K
High School Measuring refractive index of water
  • · Replies 3 ·
Replies
3
Views
1K
Undergrad Interpreting Young's Light Interference Data: Can You Help Me Clear My Doubts?
  • · Replies 5 ·
Replies
5
Views
1K
Graduate How can a photon exists on its own without a mass?
  • · Replies 6 ·
Replies
6
Views
3K
Graduate What Determines the Resolution Limit of a Microscope?
  • · Replies 3 ·
Replies
3
Views
2K
Finding 12.7mm and 13mm dia wedge prisms
  • · Replies 2 ·
Replies
2
Views
1K
Graduate Photon that "fits" into its schwarzschild radius
  • · Replies 4 ·
Replies
4
Views
2K
High School Why do we see spectral LINES, not circles/triangles etc?
  • · Replies 11 ·
Replies
11
Views
3K
Undergrad Does light reflect if incident exactly at critical angle ?
  • · Replies 4 ·
Replies
4
Views
3K
High School Why does it look like this plane is floating in the distance?
  • · Replies 2 ·
Replies
2
Views
1K
Undergrad Domino Effect and Light: A Non-Physicist's Curiosity Answered"
  • · Replies 13 ·
Replies
13
Views
3K
High School What happens to a wave when it encounters interference?
  • · Replies 8 ·
Replies
8
Views
2K
Graduate Collimating a Monochromatic Beam of Light
  • · Replies 1 ·
Replies
1
Views
2K
Undergrad Are Photons Particles or Waves?
  • · Replies 5 ·
Replies
5
Views
2K
High School How can I see Infra-Red and Ultra Violet waves?
  • · Replies 11 ·
Replies
11
Views
2K
Undergrad Reaction force direction during reflection
  • · Replies 6 ·
Replies
6
Views
2K
High School Effect of combining two source of light
  • · Replies 3 ·
Replies
3
Views
3K
Undergrad Radio Wave Propagation: Effects of Metal Objects
  • · Replies 2 ·
Replies
2
Views
2K
Undergrad Wave reflection in Closed End Wind Instrument
  • · Replies 3 ·
Replies
3
Views
2K
Graduate Maximization of wave interference
  • · Replies 7 ·
Replies
7
Views
2K
Undergrad How Should We Calculate Sound Wave Superposition Intensity?
  • · Replies 20 ·
Replies
20
Views
6K
Graduate Is 299,792,458 m/s really the max speed of light
  • · Replies 6 ·
Replies
6
Views
2K
Undergrad Does anyone know of a simple eye simulator? (geometrical optics)
  • · Replies 1 ·
Replies
1
Views
2K
Graduate Tourmaline: traditional uses in lab?
  • · Replies 7 ·
Replies
7
Views
2K
Graduate What happens to light after interference?
  • · Replies 7 ·
Replies
7
Views
2K
Graduate How Does Polarization Change Upon Reflection and Refraction?
  • · Replies 7 ·
Replies
7
Views
3K
Undergrad Apparent reversal by stroboscope
  • · Replies 1 ·
Replies
1
Views
1K
Graduate Schlieren Imaging / wave optics
  • · Replies 1 ·
Replies
1
Views
2K
Undergrad What is the relationship between numerical aperture and resolution in lenses?
  • · Replies 1 ·
Replies
1
Views
2K
High School Why do LCD TVs show color spectrum when light shines on them?
  • · Replies 2 ·
Replies
2
Views
2K
Graduate What is the minimum beam width achievable at 50GHz microwave frequency?
  • · Replies 3 ·
Replies
3
Views
5K
Undergrad Why we cannot see light from a conducting wire?
  • · Replies 4 ·
Replies
4
Views
2K
Undergrad Quick question on mirror and lens scenario
  • · Replies 9 ·
Replies
9
Views
2K
Undergrad Why Does Light Reflect and Refract When It Hits Glass?
  • · Replies 2 ·
Replies
2
Views
2K
Graduate How to Learn More About Airy Beams?
  • · Replies 1 ·
Replies
1
Views
1K
Graduate How can I go from high school level to understanding advanced optics?
  • · Replies 1 ·
Replies
1
Views
2K
Undergrad Atoms Absorbing Light & Emitting Photons: The Gas Experiment
  • · Replies 4 ·
Replies
4
Views
2K
Graduate Birefringence and Automotive Window Tinting
  • · Replies 9 ·
Replies
9
Views
8K
Undergrad Light intensity and wave behavior of light
  • · Replies 4 ·
Replies
4
Views
2K
Undergrad Are Photons Particles or Waves in the Nature of Light?
  • · Replies 8 ·
Replies
8
Views
2K
Undergrad Capability of gas to absorb & emit photons
  • · Replies 1 ·
Replies
1
Views
2K
Undergrad Learn How to Make a Hologram: Step-by-Step Guide & Equations
  • · Replies 11 ·
Replies
11
Views
3K
Undergrad Do I have the right understanding for a wavefront for sound and light?
  • · Replies 4 ·
Replies
4
Views
2K
High School Constructive and destructive waves with equal amplitudes?
  • · Replies 10 ·
Replies
10
Views
3K
High School Relationship between light and sound
  • · Replies 6 ·
Replies
6
Views
6K
Graduate Harnessing Radiation Pressure: The Potential of Solar Sails
  • · Replies 13 ·
Replies
13
Views
2K
Graduate Light's Refractive Index & Phase Change: Explained
  • · Replies 1 ·
Replies
1
Views
2K
Undergrad Does Increasing Light Wave Amplitude Mean More Photons?
  • · Replies 1 ·
Replies
1
Views
2K
Undergrad Effective refractive index when two transparent medium are joined in s
  • · Replies 3 ·
Replies
3
Views
5K
Graduate Resolution (visual acuity) and screen discreteness
  • · Replies 3 ·
Replies
3
Views
2K
High School Shortest distance light wave can travel?
  • · Replies 15 ·
Replies
15
Views
3K
Undergrad Is It Safe and Feasible to Create Plasma in a Microwave Using Helium Gas?
  • · Replies 2 ·
Replies
2
Views
2K
Undergrad What Causes the Formation of Plasma in a Microwave?
  • · Replies 2 ·
Replies
2
Views
2K
High School Radio waves for two way communication?
  • · Replies 4 ·
Replies
4
Views
2K
Graduate Proof of Fermat's principle of least time?
  • · Replies 1 ·
Replies
1
Views
2K
Graduate Aligning Images with Right Angle Prisms
  • · Replies 15 ·
Replies
15
Views
5K
Undergrad Wavenumber Units: Standard or Free-for-All?
  • · Replies 2 ·
Replies
2
Views
15K
Undergrad Why does light take an extremum path according to Fermat's Principle?
  • · Replies 1 ·
Replies
1
Views
1K
High School How does a lightning rod work?
  • · Replies 2 ·
Replies
2
Views
2K
Undergrad If density of object is slightly greater than density of fluid?
  • · Replies 7 ·
Replies
7
Views
3K
High School What causes circular rainbow patterns when using 3D glasses and LCD screens?
  • · Replies 2 ·
Replies
2
Views
5K
Undergrad Why do sharp ends of blades attract?
  • · Replies 34 ·
2
Replies
34
Views
6K
Undergrad Can a wire grid used for polarizing also cause diffraction?
  • · Replies 2 ·
Replies
2
Views
1K
Graduate Modes - physical meaning and use
  • · Replies 1 ·
Replies
1
Views
2K
Undergrad A question about the thrust of light
  • · Replies 8 ·
Replies
8
Views
8K
Undergrad Why is Biasing Important for Photodetectors?
  • · Replies 4 ·
Replies
4
Views
2K
Undergrad The Mirror Question: What Changes in Physics?
  • · Replies 4 ·
Replies
4
Views
2K
High School Projecting an image onto a mirror
  • · Replies 7 ·
Replies
7
Views
9K
Graduate Gravitational Lensing: No Distortion of Sun Images Around Black Hole
  • · Replies 1 ·
Replies
1
Views
1K
Undergrad Optics: Lens for capturing light from parabolic reflector
  • · Replies 24 ·
Replies
24
Views
4K