Optics Forum

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Optical path length change due to absorption
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2K
Refractive index- will it travel back along the same way?
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9
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Microwaves and Interference problem
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5
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Understanding Refractive Phase Differences in Electromagnetic Waves
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5
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Light From Flashlight: Does It Reach Space?
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2
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Doppler effect and Speed of light
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5
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Optical Fiber Attenuation for 1550nm FBG Sensor
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2
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Velocity of red light vs. blue light in water - qualitative reasoning?
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7
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Light's Ability to Move Matter: Explained
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Confirming the pulse-bandwidth-product for fs laser pulses
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1
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How Can I Improve My Laser Detection Software for Camera-Equipped Computers?
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6
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Light takes the path of most time elapsed?
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8
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How can diffraction occur with gap smaller than the wavelength?
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10K
Compton scattering is inelastic?
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8
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The Wavelength of a Photon: A Mathematical Representation or a Physical Reality?
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9
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Teaching about light before quantum mechanics
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10
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What factors affect the refractive index of a medium?
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18
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How does the speed of light determine the size of material bodies?
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Coherent waves for interference
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3
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Relationship between the refractive index and absorption
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Why does slit diffraction occur?
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5
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The construction of half silvered mirrors
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What is a quick way to approximate flight time off a cliff?
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2
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Acoustical diffusion, scattering, attenuation
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5
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Interference for for N slits formula
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Details of total internal reflection
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3
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Why Light on a Surface Looks Dimmer with Intense Light: Explained
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3
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When does refraction take place?
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2
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Laser Gain Medium Interactions
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17
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How Does CCD Offset Affect Laser Beam Exit Angle?
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4
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Can Two Laser Beams Interfere with Each Other?
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2
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Can UV Light Speed Up Fading of Car Paint?
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1
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Calculating Zenith Angle for Nerf Gun Targeting
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3
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When light goes from air to water,it change direction.
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1
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Very short infrared remote control question
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4
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Scientific notation question - backscatter or backscattering angle?
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1
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How Does Light Change Direction and Speed in Different Materials?
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1
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Refractive Index: Why is it Same in Vacuum for All Lightwaves?
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2
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What Does Single Electromagnetic Mode Mean in Fibre Optics?
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9
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Why is No Backward Wavefront Possible?
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3
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Power from LED bulb in sunlight
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5
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Can a Perfectly Black Object Absorb All Light and Create a Blank Spot in Vision?
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4
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Optical setup: proper lenses selection
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3
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Do antireflective coats increase the angle of total internal reflectio
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7
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Why are X-rays scattered by matter?
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12
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Reflection and absorption in matte black vs. shiny black objects
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4
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Optical design: BPP beam parameter product M^2 and beam expander
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2
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3K
Can LED's emit monochromatic light as efficiently as broad spectrum?
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Calculating the Polarization of a Plane Wave in Electromagnetic Exercises
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2
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From what point is the focal length of a thick lens measured?
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7
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5K
Polarisation of reflected light
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5
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How to obtain beam spread angle of a parabolic reflector?
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Term scattering more of a general process
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3
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Why the photon is disturbed by a hole?
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43
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Understanding Optical Path Difference in Optics | OPD Explained
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Can the Energy of a Photon be Expressed in h/s?
2
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Converting Lumens to Photons and Energy at Varying Wavelengths
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2
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Spectrum of Light from Hydrogen
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Question about toroidal mirror
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4
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Difference between double slit diffraction and interference?
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2
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Two-Slit Experiment: Photon Energy Shift from Gravity
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Can Light Travel Faster Than Its Speed in a Vacuum?
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6
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The Magic of Light: Trapping Light in Orbit
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1
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Optical scope for general purpose
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4
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Widefield laser epi-illumination
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6
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Double slit - why do we get an interference pattern?
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9
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Understanding laser phenomenon
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3
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Why Do Different Colors Appear When Using a Polarimeter on Sucrose Solution?
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2
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Synchrotron X-ray Measurements
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3
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Can Lasers Be Used as a Viable Energy Source Despite Their High Power Output?
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5
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Understanding Destructive Wave Interference
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6
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What'd happen if two light source collide w/ each other?
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6
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Two convex lenses in a system?
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3
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Scattering formulas, what's the point?
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3
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Difference between Optical and Geometrical length?
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1
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An interesting way to get an interference pattern
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3
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Question about reflectivity of mirrors vs transitivity of lenses
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10
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Flipping a polarizer 180deg. changes polarization
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10
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How can we have Inelastic scattering?
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7
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How we can collect two wave(light) ?
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3
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How Does Light and Time Affect Our Perception of Reality?
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2
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Understanding Interference and Energy in Monochromatic Light Sources
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Examining Fermats Principle & Light's Path of Min Time
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4
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Photonics Question - Laser and Total Internal Reflection
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6
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Light Speed: Can Einstein's Theory Explain It?
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9
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Why can I see light from TEM00 laser in direction of propagation?
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4
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What Causes the Wave Motion of Light in a Vacuum?
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7
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Ball lightning atmosphere interaction
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5
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What Is the Wavelength of White Light?
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5
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Positive or Negative? A Question about Polarity
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6
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Can Microwaves Fuse Metal Particles on a Plastic Substrate?
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7
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Spherical mirror area according to the amount of light
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9
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Can My Friend Across the Atlantic See My Light on a Clear Day?
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22
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Creating a low pressure region inside a laser beam
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6
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Does light follow a helical path ?
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4
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Can light be synthetically created ?
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4
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If a light goes from space to a glass
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12
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Solve Physics: Understand Bernoulli's Principle & How an Aerofoil Develops Lift
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5
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Does every light ray travels in all directions?
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5
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6K
Why Does Light With Less Wavelength Run Faster in Glass?
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1
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