Optics Forum

Post thread
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
4K
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
2K
B Why does light diffract into only seven colours?
3
Replies
81
Views
7K
I Collimating a fibre-coupled LED light source
Replies
1
Views
2K
A Calculating Fresnel Diffraction Pattern from Circular Apertures
Replies
1
Views
1K
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
1K
I How does the double-slit pattern change depending on the slits?
Replies
30
Views
4K
B Wavelength of a laser beam emerging from a prism
Replies
1
Views
1K
Does light passed through two window screens get polarized?
Replies
8
Views
2K
I Curious formula for elliptical polarisation
Replies
2
Views
1K
What is the physical dimension of transduction coefficient in photonics?
Replies
2
Views
1K
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
2K
I Could a Gaussian beam be described as parallel at a large distance?
Replies
3
Views
980
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
1K
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
1K
B Is there a material that allows visible light and UV light to pass through?
Replies
12
Views
3K
I How to "think" of a polarizer in matrix representation?
Replies
3
Views
2K
I Correct Formula for "No Fringe Condition" (Michelson Interferometer)
Replies
2
Views
986
I Fresnel equations and conservation of energy (phase shifts)
Replies
8
Views
2K
I Umbrella fabric and diffraction pattern
Replies
2
Views
2K
I Shorten the lens distance while having same focal length?
Replies
13
Views
1K
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
1K
A Imperfectly Phase-Modulated Light / Residual Amplitude Modulation
Replies
2
Views
1K
A Weird pattern for a laser beam spot
Replies
9
Views
2K
I Single-slit diffraction experiment and the conservation of energy
Replies
20
Views
2K
B The Redness of Red: fact or fiction?
Replies
3
Views
762
Is classical Snell's law with a moving medium solvable?
Replies
9
Views
2K
I Feynman's Vol 1 Lecture 26 Principle of Least Time (help with Figure)
Replies
2
Views
864
I How to make the best collimator using a system of lenses?
Replies
4
Views
1K
Doppler Effect -- How fast would you need to go for a red light to appear green?
Replies
17
Views
4K
I Simulating Star Images for Star Tracker Testing
Replies
3
Views
959
I How Can One Derive the Diffraction Pattern Formula from a 1D Aperture?
Replies
2
Views
1K
How to know what m value to plug into thin film interference equations
Replies
3
Views
10K
Why do rays of light from the Sun appear to be angled?
2
Replies
49
Views
7K
I Compound Microscope System: Magnification Power Explained
Replies
5
Views
2K
I What is really happening in collimation of rays?
Replies
7
Views
1K
B How does polarisation in nature work?
Replies
4
Views
929
I What Lens to Put In Front of an Complex Lens to Push Focal Plane Back?
Replies
2
Views
996
B Why we use spherical mirrors instead of parabolic mirrors?
Replies
18
Views
3K
Light Transmission Measurements: What Else Can You Find?
Replies
15
Views
1K
In optics what do Tp and Ts stand for and what are they?
Replies
3
Views
3K
Did Planck think the light emitted from black bodies to be quantised?
Replies
9
Views
1K
Mirror coating and BSDF measurement costs?
Replies
1
Views
856
Earth's Rotation & Global Agriculture: Impact & Possibilities
Replies
3
Views
1K
Polar Ice Caps and the Earth's Speed of Rotation
Replies
1
Views
863
Fluorescence of a laser vs its pulse duration
Replies
1
Views
957
180 degree phase shift of reflected light
Replies
2
Views
2K
Measuring the speed of light in a straight line
Replies
19
Views
2K
Exploring the Possibilities of Sky Color
Replies
7
Views
1K
How to model light from a star?
Replies
8
Views
861
Position of the principal points of a telephoto lens system
Replies
3
Views
1K
Connect: Coupling Light from 2 LEDs into a Single Fiber
Replies
2
Views
2K
Can a continous wave laser be converted to a more powerful pulsed laser?
Replies
23
Views
3K
Optics question: Looking at mirrors from parallel to the surface
Replies
6
Views
1K
How to estimate the interaction time of Raman scattering?
Replies
1
Views
672
Crosstalk Algorithm - Optical system
Replies
12
Views
1K
Optics Equations - to reduce height
Replies
5
Views
1K
Calculating distance between lux meter and light source
Replies
2
Views
2K
Optical versus digital reflections
Replies
13
Views
1K
Mirrors spontaneously cracking
Replies
8
Views
14K
Virtual and real image with concave mirror at 45 degrees
Replies
4
Views
2K
RF transmitter inside a metal enclosure, re. reflections
Replies
32
Views
2K
Interferometer delay & line light spreading
Replies
2
Views
861
Mirror box with 1 candela of luminous intensity light source
3
Replies
72
Views
4K
Power inside a microwave oven due to reflections
Replies
15
Views
1K
What is it about ice that makes it so reflective?
Replies
20
Views
3K
Critical angle (symmetry of refraction) confusion
Replies
5
Views
2K
Using constructive interference of audio frequency waves to lower distortion
Replies
3
Views
1K
ِAngular distribution of a scattered field
Replies
2
Views
843
Double Glazed Window Reflection
Replies
25
Views
6K
Rotation of the plane of polarization of light by glucose
Replies
4
Views
2K
ABCD matrix formalism for concave mirror
Replies
5
Views
2K
Question about whether UV light can penetrate a cardboard box
Replies
22
Views
6K
Interference colors on a vinyl record
Replies
26
Views
3K
Calculating the degree of polarization of reflecting light
Replies
2
Views
1K
Achieving the speed of light at the end of a whip
Replies
15
Views
4K
Basic question pertaining to Polar Coordinates & how to employ them
Replies
2
Views
886
Lensmaker's equation when the 2 mediums on both sides of the lens are different
Replies
1
Views
3K
Question on Optical Systems and Lenses
Replies
1
Views
887
MCNPX , problem of detecting the photons in lattices
Replies
1
Views
857
Is this a diffraction pattern?
Replies
10
Views
2K
Does twisted light violate Fermat's principle?
Replies
11
Views
1K
A way to make the standing-wave patterns in a microwave oven visible
Replies
4
Views
2K
The sources of error in a diffraction grating experiment
Replies
7
Views
6K
Spectrum of laser light absorbed and re-emitted by a white object
Replies
7
Views
2K
Classical explanation for microwave door shielding
Replies
19
Views
2K
Instrument using two concave lenses
Replies
3
Views
1K
Does the ruby laser (the first invented laser) have nonlinear behavior?
Replies
5
Views
1K

Hot Threads

Recent Insights

Back
Top