Posted by
Moulding, Dale on
URL: http://confocal-microscopy-list.275.s1.nabble.com/Nyquist-sampling-advice-for-a-short-talk-tp7591495p7591516.html
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Wow, thanks for all the responses. As a biologist I admit some may have gone straight over my head (the fourier domain will likely remain a place of mystery and magic to me), but I’ve got plenty to get my teeth into here. The plan is to keep it nice and simple. Nothing too much more technical than my checkerboard mouse mat that's regularly used as a Nyquist teaching tool. Love the applets, these will be really helpful.
Cheers
Dale
-----Original Message-----
From: Confocal Microscopy List <
[hidden email]> On Behalf Of Glyn Nelson
Sent: 11 November 2020 08:38
To:
[hidden email]
Subject: Re: Nyquist sampling advice for a short talk
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Hi Dale,
I found (via Twitter I think) this video by Peter Evennett. As a practical demonstration of resolution about half way through it is excellent, and may be easier to grasp for students than the purely dry physics theory. Mind you, beware that it is using transmission rather than reflection, so the 2 NAs are not necessarily the same for the calculations, so this may confuse them further!
https://eur01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.youtube.com%2Fwatch%3Fv%3D60_jgZtyR6U%26t%3D2468s&data=04%7C01%7C%7C010ecac4e50f4b34fcb008d886e99556%7C1faf88fea9984c5b93c9210a11d9a5c2%7C0%7C1%7C637407685103690142%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000&sdata=NIknXGHDKq4xIRajulKMWmI60SoS77uCuo1Hnqoyues%3D&reserved=0 about 20 mins in and further on. Even demonstrates the difference with wavelength. Really well done I think.
Otherwise, I'd '+1' Avi and Craig's answers.
Glyn.