Optics Forum

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Undergrad Why is the Speed of Light what it is
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Undergrad Why does glass not permit long wavelength infrared to pass through?
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Graduate Need to release as a LASER beam in order to ionize a certain substance
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Graduate X-Ray Emission from Synchrotrons vs. Cyclotrons
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Undergrad Why can wire mesh reflect radio waves for telescope dishes?
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Undergrad Power of laser vs Power of X-ray
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Undergrad Gravity Affects Light: Is What We See Real?
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Graduate Speed of light in a medium other than vacuum
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Undergrad Understanding Infrared Light Sensors and the Inverse Square Law
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Graduate If light has momentum then wouldn't it have force?
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Undergrad Why are ants immune to microwaves?
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High School How is light produced in the following?
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High School Optics: Real vs Virtual Images
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Undergrad Can Multiple Laser Beams Be Combined into a Single Powerful Beam?
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Graduate Why does a microwave oven heat food faster than a black body?
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High School Understanding Refraction and Reflection for Beginners
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Undergrad Why Do We See an Apple as Red?
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Undergrad Inverse square law and superposition.
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Graduate At what point does light come into existence from when it leaves its source?
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Graduate Do lightwaves exist? and what exactly is light?
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Graduate What Are the Best Optical Filters for Diverging Light?
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Graduate Priciple of Optical Reversibility - How can it be proved?
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Graduate Change of phase in total internal reflection
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Graduate Altitude, gravity, and air density effects on flight
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Graduate How diffraction of a wave through a aperture in terms of the uncertain
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Graduate Spatial Light Modulator to remove high intensity light
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High School What is the significance of Q in understanding curved mirrors?
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Undergrad How to send and receive radio waves?
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Undergrad Polarization of laptop display
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High School Colors in white light visible to the naked eye?
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Undergrad Why the Sun's Light is a Continuous Spectrum of Visible Range
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Punches his opponent at the speed of light
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Graduate Optical Tweezers: Intuitive Explanation
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Undergrad A question of combining laser light
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High School Where does light go when we switched off the Source of light.
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High School Finding a Material to Reflect Radio Waves
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Graduate Materials with an index of refraction of zero
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Graduate Polarization of Light: Explained
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Undergrad Can a Laser Really Shoot Down a Drone? Watch the US Navy's 30 Second Video!
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Graduate What is the reason for phase change of light on reflection from a denser medium?
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Graduate Monochromatic to Polychromatic Laser beam
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Undergrad Understanding 3D Glasses: How Polarization Works and the Role of Mirrors
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High School What is the Difference Between Real and Virtual Images Formed by Mirrors?
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Undergrad Colour (RGB/HSV/HSL) to wavelength.
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High School Light & Photon: Explaining Wave vs Particle Theory
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High School See Infrared in Naked Eye | Tips & Techniques
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Undergrad Visible light Absorption Spectra vs Color of mineral
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Undergrad Why Is My DIY Laser Sound Project Not Working?
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Graduate Lasers - energy per round-trip
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Graduate Observation, wavelength and resolution
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Graduate Maximizing Solar Energy Efficiency: A Thermodynamics Question"
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Undergrad Diffraction Pattern Explained: What is it?
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Undergrad How do diffraction and refraction affect wave propagation?
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Undergrad Witnessing Colorful Interference Patterns with a Benham Top
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Undergrad Optics question - eyes and cameras, and the mythical 50mm lens
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Graduate Speed inorder to shift green light to blue light?
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Graduate Photon Annihilation, where does the energy go?
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Undergrad Are photons much older than stars?
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High School Why is light not visible when it travels.
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Graduate Slowing Light Down to Photograhable Speeds?
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Graduate What Causes Diffraction According to Huygen's Principle?
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High School Laser Cutting Machines: What Cuts Steel?
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High School Increase Speed of Homopolar Motor - Advice & Explanation Needed
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Undergrad Fresnel Lens Array - Focal Point Question
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Undergrad Converting Transmission to Absorbance (Optics)
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Graduate Can the Speed of Light be Greater than c?
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High School What happens to polarised light?
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Undergrad Terms to describe these patterns
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Graduate Could gravity have 2 components like a photon
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Graduate Refractive index and dispersion (name & usage of eq and conceptual questions)
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Undergrad Help us understand spectral transmittance
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Graduate Questions regarding light and dark
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Graduate Confusion over real and complex versions of the same quantities
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Graduate Polarising Sound: Restricting to One Direction Underwater
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Graduate Just want to see if my understanding of the photon is correct
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High School Understanding Wave Motion of Light: A Curious Question
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High School Infinite Reflections: Explaining Mirror Physics
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Graduate Destructive interference and Conservation of energy
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Undergrad Gamma/Radio waves through solids
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Undergrad Are All Waves Sinusoidal, or Are There Non-Sinusoidal Waveforms?
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Graduate Accuracy of Kirchhoff diffraction theory
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Undergrad White Light Scanning: How Does it Work?
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Graduate Electron Interference: Scanning Electron Microscope
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Graduate Consider a diffuse (Lambertian) emitter
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Undergrad Why is the speed of light in a vacuum considered the ultimate limit?
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Undergrad Speed of light through moving liquid
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Undergrad Max theoretical resolution of scanned images.
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Undergrad Do photons cause electrons to accelerate in an atomic orbital?
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Graduate How Can Spacecraft Travel Faster Than Light?
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Undergrad Raman Spectroscopy: Stokes and Anti-Stokes Wavelengths
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Undergrad Can Refraction and Interference Both Cause Iridescent Effects?
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Graduate A thought experiment: Light in a mirrored box?
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Undergrad Interference Pattern Properties
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Graduate Does White Light Exist? (And two possible explanations for black lines)
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Graduate Light at Absolute Zero: Answers to Your Questions
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Undergrad Compact fluorescent light bulb in microwave
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High School What Does a Negative Absorbance Reading Indicate?
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Undergrad How do we know that light is a wave
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Graduate Understanding Radiometry: Calculating Radiance at Point P (0,0,0)
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Safe Fluid Flow in Modified Microwaves: How to Protect Yourself?
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