Optics Forum

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Is the Ideal Lens Calculation Patentable?
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Why doesn't sunlight have infinite energy?
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25
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Lightbulb and mini hydro generator
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Optics: Focusing Explained with an Owl
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11
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Simple microscope and convex lens
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1
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Reflection/transmission of waves at interfaces
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14
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Can light be split by colour accurately?
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Relationship between interference and arm length in MZI
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Faster than the speed of light (pulling on a string)?
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Why hasn't gravity been solved for space flight
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Can a Laser Beam be Repeated Across Multiple Points?
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Why Raman spectroscope doesn't use 532nm laser ?.
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How Do Different Diffraction Grating Designs Affect Analysis Results?
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Reflection Grating: How Does it Diffract?
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3
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Bending light by use of a strong field...
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6
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Composition of Light: Questions & Answers
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28
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On the logical-ness of the principle of superposition
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7
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Definition of transmission & reflection in TE/TM
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12
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Principal plane of a thin lens
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8
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Optics question: I need parallel illumination for a Contact Image Sensor (CIS)
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16
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Plano-convex lens, which side should face the laser source
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To measure the energy density of a (brief) laser pulse
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29
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Does the picture change if we turn a thin lens around
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2
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How many energy requires to increase 1℃ of 1 liter of water using MICROWAVE?
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2
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Is the eye more sensitive to intermittent light/flashlight?
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10
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Mass, Light Speed, and the Mystery of Photons Explained
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19
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What Happens When Two Identical Photons Travel Parallel in a Vacuum?
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5
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Condition for circular-wire polarizer to transmit no light
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8
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Why do signals to tv aerials need to be polarised?
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2
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Where do antireflective coatings reflect light?
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2
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Does a Single Metal Stripe Reflect Polarized Light at the Angle of Incidence?
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8
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Is this image of a polarizer misleading?
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1
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Faster than light: Instantaneous lever
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14
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Is laser beam visible in vacuum?
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1
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Lift coefficient of rocket at vertical flight
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14
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Is it possible to see objects at 600m distance in infrared
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4
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Rayleigh Scattering and linear polarization
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2
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How to calculate transmissivity of a set of reflective foils
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5
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Jones vectors for circular polarization
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4
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Combustion Emit Light: Reasons & Benefits
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1
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Rectilinear propagation of light
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1
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Optics: How would you determine wavelength?
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3
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Estimating the FOV of a thin sliced plano-convex cylindrical lens
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3
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Reasoning for photon having no mass
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21
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Why does polarizability have units of volume?
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3
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Trying to understand diffraction
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2
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PDLC film or glass for optical shutters or shutter glasses
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20
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How does the diffraction grating in Canadian currency work?
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2
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Laser pulse: spectral width vs time
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5
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Question about superposition....
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11
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What is the correct formula for refraction at an interface between two media?
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22
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Birefringence in in uniaxial optical media and Snell's law
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6
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About a concave mirror with a large focal length (1000mm)
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6
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Huygens-Fresnel principle of diffraction
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5
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Diffraction Help: Is This Diffraction?
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16
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Why is the photon's mass zero in classical equations for light?
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27
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Is the Photon Truly Massless? Examining Einstein's Law of Relative Mass
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18
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The Homopolar Generator: An Analytical Example - Comments
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8
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Abbe theory: diffraction pattern to primary image
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12
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Are there any units of measurement between 10^3 and 10^6 in the metric system?
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7
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Reflected rings from the chair leg
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6
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Why does cold air seem to optically zoom in far-away objects?
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4
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Measurement of the Speed of light
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4
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How can we melt ice in a microwave efficiently?
2
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59
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More slits, farther maxima of interference patterns, why?
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1
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Interference fringes in Absorption spectra
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6
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Device with which I can measure the frequency of light
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3
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Blue Light from a Blackbody Radiator
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4
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The validity of ray optics in telescopes
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8
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Single Slit Diffraction and Interference Maxima
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4
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Direct Modulation and Photon Lifetime - Laser
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2
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What Causes Equal Interference Amplitudes in Light Diffraction Patterns?
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8
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Creating Coherent Light from UV LEDs and Pinhole Aperture
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2
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Single Slit and Diffraction Grating Formulas
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The relation between photons and waves
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10
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How Is the Minimum Bend Radius of a Fiber Optic Cable Determined?
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5
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Microwave Oven: Why Are Grid Holes So Small?
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9
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Can Quantum Laser Sintering Revolutionize 3D Printing?
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2
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Image if a mirror is placed at the focal distance of a biconvex lens
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8
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Deriving Polar Coordinates Without Cartesian System
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5
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Is a Pin-Bar TEA Laser the Key to High-Pressure CO2 Laser Success?
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1
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The crossed ladder problem and optics mirror/lens equation
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2
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Could lightning be creating antimatter in our atmosphere?
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1
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Distortions in time when going near light speed
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10
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Does black hole stop light or time?
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10
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Methods of Trapping Laser Light
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22
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Harvard Scientists Create New States of Light
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5
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Diffraction and gravitational lensing
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3
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Phase/group refractive index and reflection
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2
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Seeing more than the visible light spectrum
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28
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What Makes Light and Color Unique in Our Perception?
2
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66
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How can X-ray energy transitions be identified?
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Discover the Fascinating Fresnel and Arago Spot Experiments in Belgium
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8
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Calculating how many Joules are required to make a photon
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21
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Photon Detection: Learn About Interaction, Detection & Angles
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24
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Does attenuation affect subsequent interference?
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4
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How can this interesting set of mirrors be constructed?
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3
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Laser Crystals -- effects of crystal size
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5
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Laser Question - Axial Modes & Gain Saturation
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4
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Determining which energy level transfers cause peaks in x-ray spectra
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1
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1K

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