3D imaging and lensless imaging: light field camera/display, holography, and phase retrieval

ERRATA: at 48:43, the expression in the bottom right purple rectangle should be exp(-2 pi i K.X) instead of exp(-2 pi i K.x). (Thanks to YG123 for pointing this out)
Lecture notes: drive.google.com/drive/folder...
My PhD thesis on phase retrieval: doi.org/10.4233/uuid:c8adfe08...
0:00 Introduction
4:37 Light field camera
7:11 Holography
8:01 Inline holography
9:46 Off-axis holography
13:37 Reflection holography
16:55 Rainbow hologram
20:04 Phase imaging
21:38 Zernike phase contrast microscopy
25:01 Shack-Hartmann wavefront sensor
27:07 Digital holography microscopy
30:20 Coherent Diffractive Imaging (CDI)
32:25 CDI: inline holography
33:27 Fourier Transform Holography (off-axis holography)
35:48 Iterative CDI algorithms
47:20 Ptychography
52:26 Fourier ptychography

[@yg1233]

Hi, there may be a typo at 48:43, the expression in the bottom right purple rectangle should be exp(-2 PI i K.X) instead of exp(-2 PI i K.x).

[@SanderKonijnenberg]

Yes, you are right. Thank you for pointing this out. I'll add this correction in the video description.

[@CatastrophicNickName]

This is excellent - Thank you for making this material public. You have made amazing lectures, that i love to revisit when in doubt.

[@asiaasia4412]

Thats amazing! Thank you, great lecture, helped me to better understand holography princples

[@rahuljoshi2654]

Hey sir I have a question can you help me please?

[@zongtaowang7840]

Hi, I think this video is about 3d imaging, but for inline (Gabor) holography, many text book assumes the object is a plane which is represented as the transmittance coefficient t(x,y), as you can see it is 2D. So My question is that can we get a 3d imaging for Gabor holography? Especially, suppose we have reconstructed the wave/light for a Gabor holography, can we see the images in different views?

[@SanderKonijnenberg]

Thanks for this interesting question. I think it is best answered by a direct quote from Gabor himself [GABOR, D. A, New Microscopic Principle. Nature 161, 777-778 (1948)]:
'One must expect that looking through such a properly processed diagram one will see behind it the original object, as if it were in place.
[...]
It is a striking property of these diagrams that they
constitute records of three-dimensional as well as of plane objects. One plane after another of extended objects can be observed in the microscope, just as if the object were really in position.'