Optics Forum

Post thread
I Mirror rotates any polarisation by 90°?
Replies
6
Views
2K
I Paraxial ray tracing: fixing image/height w/o knowing stop location
Replies
3
Views
1K
Trying to Understand the Polarization of light
Replies
6
Views
13K
I Why does a spyglass or binoculars zoom in?
Replies
17
Views
2K
I Energy of Electromagnetic Waves in Destructive Interference
2
Replies
54
Views
5K
I How to calculate focal length?
Replies
8
Views
2K
I How does an eye reconstruct an image?
Replies
9
Views
2K
I Light coupling from optical fiber to glass?
Replies
25
Views
2K
B Discover the Best Microscope for Sperm Cell Observation | AMScope M158C-E
Replies
1
Views
1K
I Interesting Optical Phenomenon
Replies
3
Views
2K
B Geometrical Optics: Explaining the Effects of Small Wavelengths
Replies
3
Views
2K
A How to compute phase gradient from Snell's law?
Replies
1
Views
1K
I Minimum light bulb wattage for solar simulator
Replies
11
Views
2K
I Plane wave decomposition method in scalar optics
Replies
1
Views
1K
I What is the angle of the Sun on June 21 & Dec 21 at US Zip Code 37129?
Replies
2
Views
2K
A Diffraction from a set of concentric rings with random phase
Replies
2
Views
1K
I Deciphering the Symbolic Shapes in Fundus Images: A Question on their Meaning
Replies
7
Views
2K
I Image appears outside of q -- Lens Maker's Equation confusion
Replies
17
Views
2K
Understanding Reflection of Light on a Concave Mirror
5
Replies
172
Views
15K
I Lost Aspheric Lens Design Equation Found
Replies
2
Views
1K
I Scattering and non-imaging optics
Replies
15
Views
2K
I Difference between Working distance and object distance
Replies
1
Views
1K
I Total focal length and magnification
Replies
4
Views
1K
I What Determines the Speed and Clarity of Signals in Wave Physics?
Replies
6
Views
1K
I How can I derive this relation from Snell's law?
Replies
1
Views
1K
I Light coupling in fiber optic cables
Replies
22
Views
2K
A Iphone Reflection has a pattern
Replies
2
Views
1K
I Validity of Fresnel Approximation
Replies
2
Views
1K
I Using simple lenses to image AFM Probes
Replies
10
Views
1K
I Investigating a 3D Color Hue Phenomenon with Blender and Just Color Picker
Replies
2
Views
1K
I Doubts about Fourier transform of IR spectroscopy
Replies
3
Views
1K
I Huge farsightedness/nearsightedness lens
Replies
10
Views
1K
B What does "1 diopter of astigmatism" mean?
Replies
4
Views
2K
I Why do we always see interference pattern in Michelson interferometer?
Replies
9
Views
2K
I Using Lenses with Laser Diode Microscope to Reduce Aberrations
Replies
1
Views
996
I Focusing UV light from a 275nm LED down to a small spot
Replies
10
Views
2K
I Quetelet rings on LCD displays?
Replies
3
Views
1K
I Constructive interference of harmonic electromagnetic waves
Replies
5
Views
1K
Uncovering the Colored Light Beam: Exploring Polarising Light Waves
Replies
2
Views
9K
Homopolar motor teaches about the Lorenz Force
Replies
1
Views
11K
I Do materials have a refractive index for radio waves?
Replies
5
Views
2K
I Lens angle of coverage/image circle
Replies
5
Views
1K
B Apparent Depth - What remains constant?
Replies
5
Views
2K
Diffraction of RF - how is it affected by frequency?
Replies
5
Views
2K
I Question about polarization of light by scattering in the atmosphere
Replies
7
Views
2K
I Could the Sun burn an image sensor of a star tracker in space?
Replies
3
Views
1K
I Russia Claims Laser Weapon Can Destroy Drones: Is it Possible?
Replies
2
Views
1K
I Pentaprism with magnification, which surface is curved?
Replies
2
Views
919
A Diffraction of spherical wave by plane grating
Replies
1
Views
1K
A A double slit thought experiment leading to a paradox
Replies
4
Views
1K
A Thought experiments suggest problem with published work
Replies
8
Views
1K
B Intuitive, conceptual understanding of holography
Replies
3
Views
1K
I Polarizing filter synthesis and dynamics
Replies
4
Views
1K
Can you trap light indefinitely?
2
Replies
37
Views
33K
I Find the interference function for different emission modes
Replies
2
Views
1K
B A variation on the Fresnel Spot experiment
2
Replies
36
Views
3K
B Number of fringes in a 2-slit diffraction pattern
Replies
6
Views
2K
Collimating a laser beam with a fixed focal point?
Replies
9
Views
2K
I Interference - two waves of different frequencies - beat velocity
Replies
4
Views
1K
I What does a "phase reversal" really do?
Replies
3
Views
1K
I Finding focal length of the lens using "u-v" method
Replies
8
Views
2K
I Experimental demonstration of an absorption spectrum
Replies
7
Views
1K
B Exploring Light with a DIY Spectroscope
Replies
3
Views
1K
A A question about photolithography (optical lithography)?
Replies
4
Views
1K
Is there any smart material that gets lighter/heavier?
Replies
10
Views
4K
Find the Best Zemax Textbook for Professional Optical Engineers
Replies
2
Views
1K
B Fermat's principle and refraction -- Possible misunderstanding
2
Replies
42
Views
3K
Phase lag of light in materials
Replies
8
Views
2K
Does Light Have a Measurable Density?
2
Replies
52
Views
23K
B Is light breaking its own speed limit when cornering?
Replies
25
Views
1K
B Why does light diffract into only seven colours?
3
Replies
81
Views
6K
I Collimating a fibre-coupled LED light source
Replies
1
Views
1K
A Calculating Fresnel Diffraction Pattern from Circular Apertures
Replies
1
Views
980
I On 'A Quarter Waveplate (QWP) rotated between 2 Polarisers'
Replies
5
Views
2K
A How is phase velocity related to deflection angle?
Replies
19
Views
1K
I Do my parabolic mirrors need to be really shiny to reflect infrared?
Replies
3
Views
993
I How does the double-slit pattern change depending on the slits?
Replies
30
Views
3K
B Wavelength of a laser beam emerging from a prism
Replies
1
Views
994
Does light passed through two window screens get polarized?
Replies
8
Views
1K
I Curious formula for elliptical polarisation
Replies
2
Views
963
What is the physical dimension of transduction coefficient in photonics?
Replies
2
Views
995
A Reflectivity with gradient in refractive index
Replies
6
Views
2K
I Calculating Intensity in Single Slit Diffraction Experiments
Replies
17
Views
2K
I Aberration in Lenses: Formula & Relation Explained
Replies
7
Views
1K
I Could a Gaussian beam be described as parallel at a large distance?
Replies
3
Views
792
I Interference and conservation of energy in a resonator
Replies
28
Views
2K
I Spherical aberration in Biconvex and Plano Convex lenses
Replies
2
Views
1K
Data storage using microtubules?
Replies
2
Views
974
B Why do reflections in water sometimes appear different from what we see?
Replies
15
Views
2K
I The reflection of the sunset on the water is redder--Why?
Replies
1
Views
885
B Is there a material that allows visible light and UV light to pass through?
Replies
12
Views
2K
I How to "think" of a polarizer in matrix representation?
Replies
3
Views
1K
I Correct Formula for "No Fringe Condition" (Michelson Interferometer)
Replies
2
Views
807
I Fresnel equations and conservation of energy (phase shifts)
Replies
8
Views
1K
I Umbrella fabric and diffraction pattern
Replies
2
Views
1K
I Shorten the lens distance while having same focal length?
Replies
13
Views
953
I Help Understanding Luminance Calculation Process
Replies
1
Views
1K
A Magnifying diffraction patterns and real images
Replies
13
Views
2K
A Optimum profile of light pipe exit for narrow beam angle
Replies
16
Views
993
A Imperfectly Phase-Modulated Light / Residual Amplitude Modulation
Replies
2
Views
762

Hot Threads

Recent Insights

Back
Top