Making Optical Logic Gates using Interference
Huygens Optics
@huygensopticsAbout
Hi, my name is Jeroen and on the Huygens Optics channel I publish videos on personal projects. My main fields of interest are optics, mechanics and photolithography. The videos aren't targeted towards a general audience but for people with a passion for science and technology (e.g. my fellow nerds). The channel is named after the famous Dutch mathematician, astronomer and inventor Christiaan Huygens (1629-1695). He was the first to publish a mathematical description of the wave properties of light, and also discovered Saturn's rings. I make these videos for fun, without a financial motivation. Please don't contact me for sponsoring contracts or in-video advertisement. Neither me nor my viewers are interested. If you want to contribute as a viewer, you can do so by either donating using the Paypal link or by using the Patreon account: https://www.patreon.com/huygens_optics Your donation helps me to make better videos.
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Video Description
In this video I look into the idea of using optical interference to construct different kinds of logic gates, both from a conceptual- as well as from the practical perspective. Contents 0:00 Intro 2:15 Logic gate operation 3:36 Optical logic gates 4:45 Concept of a diffractive logic gate 7:52 Practical aspects (photolithography and etching) 8:46 Wave front observation method 9:20 Results 13:51 Possible applications Webpage with detailed and complete information on logic gates: http://www.ee.surrey.ac.uk/Projects/CAL/digital-logic/gatesfunc/index.html The diffractive patterns were made by using a home-brewed windows Zone plate app and then modifying them further with photoshop. The Zone Plate app can be downloaded from: http://www.huygensoptics.com/assets/zp_writer.zip For Windows 10 and for personal use only. Virus scanners and Windows will nag about it being a rare / unknown file and make installation sometimes difficult. Sorry about that. Install this app at your own risk. An overview article on various known optical logic gates can be found in this paper: https://www.hindawi.com/journals/aot/2014/275083/ However it does not contain any mention of the configuration described in this video The video contains references to detail videos on the following subjects: Photolithography: https://youtu.be/Lf-ev2Fop_k Chromium photomask etching: https://youtu.be/foMT8gLYxBY Other diffractive optics (photon sieves): https://youtu.be/TshYfYIxR9E Microscope viewing method: https://youtu.be/TshYfYIxR9E
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