File:Optical flat test with both green and red light showing the harmonic differences in wavelength.JPG
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Summary
| Description |
English: An optical flat test performed with both green (532 nm) and red (650 nm) light. The red and green are harmonically opposites, so the fringes fall between each other in certain locations, yet they overlap in others, forming yellow fringes. The wavelengths are nearly harmonically opposite of each other, being roughly λ/5 shorter. A true harmonic-opposite is λ/4 shorter (532 is opposite of 665, and 650 is opposite of 520). The lower inset shows how the waves would overlap and interfere with each other if they were true opposites, directly corresponding to the fringes at the bottom. |
| Date | |
| Source | Own work |
| Author | Zaereth |
Licensing
I, the copyright holder of this work, hereby publish it under the following license:
 
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This file is made available under the Creative Commons CC0 1.0 Universal Public Domain Dedication. |
| The person who associated a work with this deed has dedicated the work to the public domain by waiving all of their rights to the work worldwide under copyright law, including all related and neighboring rights, to the extent allowed by law. You can copy, modify, distribute and perform the work, even for commercial purposes, all without asking permission.
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File history
Click on a date/time to view the file as it appeared at that time.
| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 10:45, 25 December 2013 | | 1,892 × 1,717 (674 KB) | Zaereth~commonswiki | Fixed an error |
| 05:48, 25 December 2013 |  | 1,901 × 1,784 (705 KB) | Zaereth~commonswiki | Adding an inset showing how the fringes directly match up to the overlapping waves | |
| 04:00, 20 December 2013 |  | 1,021 × 658 (182 KB) | Zaereth~commonswiki | Increased saturation to better show the fringes | |
| 00:58, 19 December 2013 |  | 1,021 × 658 (223 KB) | Zaereth~commonswiki | User created page with UploadWizard |
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