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A
Fourier Optics: Why a Plane Wave contributes to just a single point
Yesterday, 3:43 PM
Replies
2
Views
41
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Will cooling or heating a pair of binoculars change the transmitted image?
Yesterday, 3:04 PM
Replies
3
Views
35
I
Permittivity (epsilon) change via temperature + optics effect?
Sunday, 6:45 PM
Replies
3
Views
56
I
Explanation for homemade digital microscope's optical systems?
Saturday, 9:40 PM
Replies
3
Views
284
I
Microring resonator matrix
Apr 15, 2024
Replies
3
Views
114
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Factors that influence depth of field
Apr 13, 2024
2
Replies
41
Views
469
Mirror phenomenon — Concentric halos around eyes in a foggy bathroom
Apr 12, 2024
2
Replies
55
Views
20K
B
How would someone see light from something like a flashlight in a tunnel?
Apr 3, 2024
Replies
6
Views
293
B
Did Thomas Young Misinterpret His Double Slit Experiment Results?
Mar 13, 2024
Replies
34
Views
603
B
Horizon and Curvature Observations
Mar 13, 2024
Replies
23
Views
463
I
Laser and nano-holes experiment
Mar 13, 2024
Replies
3
Views
760
Measure the transmission curve and wavelengths of colored mineral glass
Mar 11, 2024
Replies
5
Views
356
B
How to build a simple polarization filter
Mar 5, 2024
Replies
11
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390
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Light beams and their reflection
Mar 3, 2024
2
Replies
64
Views
851
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How to Troubleshoot a Lens Focusing Issue with a DIY DSLR Lens
Mar 3, 2024
Replies
10
Views
488
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Exploring Co-Phasal Wave Fronts in Fizeau Interferometry
Mar 3, 2024
Replies
7
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624
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Collimation of a Gaussian beam
Feb 29, 2024
Replies
7
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495
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Why Are Reflected Rays Often Ignored in Lens Studies?
Feb 21, 2024
Replies
5
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399
I
Lumens and actual power of luminous flux
Feb 18, 2024
Replies
16
Views
689
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What travels faster: visible light in water or X-rays in liquid mercury?
Feb 11, 2024
Replies
6
Views
591
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Looking for information on Verity SD100 monochromator unit
Feb 9, 2024
Replies
24
Views
790
B
Pfund's method for refraction
Feb 9, 2024
Replies
11
Views
865
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Does a Fabry Perot cavity charge in discrete steps?
Feb 5, 2024
Replies
12
Views
1K
A
Mach Zehnder Interferometer Interference fringes issue
Jan 26, 2024
Replies
10
Views
627
A
Simulating collecting efficency of a LiDAR
Jan 19, 2024
Replies
2
Views
468
A
Question about detector and lens
Jan 13, 2024
Replies
12
Views
648
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Understanding Corrective Lenses: Examining Reversed Prescriptions
Dec 29, 2023
Replies
5
Views
761
A
About collimation in Czerny-Turner spectrometers
Dec 24, 2023
Replies
1
Views
690
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Calculating the Raleigh Criterion constant to 99 significant figures
Dec 21, 2023
Replies
3
Views
1K
I
Need Help Identifying Old Optic Device
Dec 19, 2023
Replies
6
Views
790
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Lens Calculations to Focus Light
Dec 11, 2023
Replies
10
Views
919
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What website/software can draw optics setups like this?
Dec 6, 2023
Replies
1
Views
727
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Recreating Spectral Response from 6-Channel Color Sensor
Dec 3, 2023
Replies
2
Views
718
A
Diffraction theory, power density and angle of incidence
Nov 23, 2023
Replies
5
Views
853
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Help with sourcing a specific type of integrating sphere
Nov 22, 2023
Replies
2
Views
687
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Measuring reflectance of a non-planar object w/ an integrating sphere
Nov 21, 2023
Replies
6
Views
853
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Creating a wavelength selectable light source with diffraction grating
Nov 20, 2023
Replies
2
Views
717
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What happens if I place light sources on the plane perpendicular to the principle axis of cylindrical lens?
Nov 14, 2023
Replies
1
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639
How to find the orientation of polarization of a polarizer
Nov 4, 2023
Replies
6
Views
4K
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Can n-slit interference produce subwavelength stripes?
Nov 4, 2023
Replies
6
Views
793
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(Huygens) Irving Giant Pinhole variation: Extend it with a 70 mm tube?
Nov 2, 2023
Replies
4
Views
793
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How Does Diffraction Influence Shadows and Optical Observations?
Oct 31, 2023
Replies
3
Views
808
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Optical Effect: curved light source when seen through the bus window
Oct 26, 2023
Replies
5
Views
832
I
Can an Aspheric Lens Narrow the FOV for Motion Detection Systems?
Oct 25, 2023
Replies
1
Views
831
I
How is IR ink able to be seen with specialized filters?
Oct 20, 2023
Replies
3
Views
787
I
Can I Use Additional Wavelengths for a More Advanced Hue Calculation?
Sep 28, 2023
Replies
19
Views
1K
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Optical pumping vs Rabi cycle - what is the difference between their conditions?
Sep 18, 2023
Replies
5
Views
1K
B
Huygens Question - Using a Pinhole Box in the Giant Pinhole Irvine
Sep 18, 2023
3
Replies
70
Views
3K
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How different is a calcite crystal from a polarizer?
Sep 14, 2023
Replies
3
Views
1K
I
Reflection, refraction, and Snell's law
Sep 11, 2023
Replies
23
Views
2K
I
Huygens' principle doubt -- How do different shapes of wavefronts appear to the human eye?
Sep 1, 2023
Replies
28
Views
1K
Define the polarization in TE/TM modes
Aug 31, 2023
Replies
4
Views
13K
I
Sine laws of spherical singlets
Aug 19, 2023
3
Replies
72
Views
3K
Looking for trigonometric ray tracing software for optics
Aug 19, 2023
Replies
22
Views
1K
A
Spherical aberration in Biconvex lens
Aug 9, 2023
Replies
9
Views
2K
A
Calculating the optical depth of an inhomogeous gas
Aug 9, 2023
Replies
1
Views
892
I
Sagnac Interferometer (Fiber Gyro)
Aug 9, 2023
Replies
1
Views
863
I
Automatic double lens glasses?
Aug 8, 2023
Replies
3
Views
972
I
My spectacles defy the laws of physics
Aug 7, 2023
Replies
13
Views
1K
I
Tilted plane wave through a 2 lens system
Aug 6, 2023
Replies
5
Views
1K
A
Stimulated emission/absorption - which equations act on external targets?
Aug 6, 2023
Replies
2
Views
978
B
Scattering of light by dust particles
Jul 31, 2023
Replies
4
Views
1K
I
Stimulated Emission & Emitted photon direction
Jul 31, 2023
Replies
1
Views
940
B
Why are light waves depicted as lines, circles, and sinusoids?
Jul 30, 2023
Replies
18
Views
1K
B
Is this material is good for fiber optics and who would buy it?
Jul 29, 2023
Replies
2
Views
981
B
Scattering of light inside a room
Jul 26, 2023
Replies
22
Views
1K
A
How is it possible to measure an IR LED source in mW/sr?
Jul 15, 2023
Replies
16
Views
2K
I
How to Measure Magnification of a Lens System with Liquid Surface
Jul 14, 2023
2
Replies
40
Views
3K
A
What exactly is deconvolution doing?
Jul 6, 2023
Replies
13
Views
1K
I
Questions About Bragg's Law of X-Ray Diffraction
Jul 3, 2023
2
Replies
54
Views
5K
I
2mm x 2mm mirror array construction - can you help?
Jul 2, 2023
Replies
2
Views
1K
I
Optics: infinite light source illusion question - can you help?
Jul 2, 2023
Replies
8
Views
1K
I
Photodetector Output & Refractive Index of FO Cladding/Coating
Jun 24, 2023
Replies
1
Views
1K
B
Does light propagate as a wave of little bullets?
Jun 20, 2023
Replies
34
Views
2K
I
May I treat the light from a star as a light beam?
Jun 7, 2023
Replies
11
Views
2K
Light Transmission Through Half-Hollow Sphere
Jun 2, 2023
Replies
5
Views
1K
B
Does light ever go from the eye to the image?
Jun 1, 2023
Replies
17
Views
1K
B
Shouldn't the refracted ray be along the boundary here?
May 29, 2023
Replies
5
Views
1K
B
Shape of Lenses -- Why are they always circular?
May 28, 2023
Replies
12
Views
1K
I
Why do we use low-coherence light in Optical Coherence Tomography?
May 5, 2023
Replies
1
Views
1K
I
Polarization of Light -- Please help me with some basic questions
Apr 22, 2023
Replies
10
Views
1K
I
Light Refraction, Biconvex Lens, Diagram Help
Apr 21, 2023
Replies
9
Views
2K
A
Four-way beamsplitter implementation
Mar 29, 2023
Replies
4
Views
1K
I
Outer layer refractive index - total internal refection on waveguide
Mar 25, 2023
Replies
2
Views
1K
B
A cone of photons from one (of many seen objects) hits the retina....
Mar 24, 2023
Replies
25
Views
2K
I
Exploring Particle/Wave Duality in Photons
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Replies
12
Views
1K
Evaluate the outgoing radiation from an optical fiber on a surface
Mar 18, 2023
Replies
1
Views
1K
I
Applications of Virtual objects
Mar 13, 2023
Replies
9
Views
2K
I
The kinetic energy of proton-electron for a black body
Mar 7, 2023
Replies
8
Views
1K
B
What Powers Light? Exploring Photon Energy Across the Galaxy
Mar 4, 2023
Replies
13
Views
1K
A
Fourier optics model of a 4f system
Feb 23, 2023
Replies
1
Views
1K
I
Grating Resolving Power of Laser Beams with Gaussian Distribution
Feb 15, 2023
Replies
2
Views
1K
I
Class debate: Everything we see is a result of reflected light
Feb 10, 2023
Replies
18
Views
2K
I
William Herschel's light experiment
Feb 1, 2023
Replies
15
Views
2K
I
Issues collimating my laser with 4f system
Jan 29, 2023
Replies
9
Views
2K
I
Expose a Hidden Message w/ Polarisation Filters
Jan 25, 2023
Replies
5
Views
1K
I
Mirror rotates any polarisation by 90°?
Jan 24, 2023
Replies
6
Views
1K
I
Paraxial ray tracing: fixing image/height w/o knowing stop location
Jan 15, 2023
Replies
3
Views
1K
Trying to Understand the Polarization of light
Jan 9, 2023
Replies
6
Views
13K
I
Why does a spyglass or binoculars zoom in?
Jan 7, 2023
Replies
17
Views
2K
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