EZEKIEL, Shaoul "Ziggy" 79, passed away on Wednesday, January 7, 2015 at home with his wife at his bedside. He died from soft tissue sarcoma cancer. Burial was at Mount Auburn Cemetery, Cambridge, MA. He was born in Baghdad, Iraq on July 20, 1935 and lived with his parents David and Naima Ezekiel, his brother Fred and his sisters Clairette, May and Farah. He attended the Alliance Elementary School in Baghdad. He and his family moved to London, England in 1948 where he attended the Hasmonean Grammar School. He was appointed Head Pupil in 1953. He received the B.S. degree in Electrical Engineering from Imperial College, University of London in 1957. After working for the General Electric Company for two years, he moved to Montreal, Canada in 1959 where he worked for Canadian Aviation Electronics for two years. In 1961, he went to Sydney, Australia to visit family and to work for a year. In 1962, he joined MIT as a grad student, receiving an M.S. Degree in 1964 and a Doctor of Science Degree in 1968. He was then appointed Assistant Professor in the MIT Department of Aeronautics and Astronautics in 1968. He was appointed Professor, Departments of Aeronautics and Astronautics and Electrical Engineering in 1978. In 1986, he was appointed Director, MIT Center for Advanced Engineering Study. Honors he received included, Fellow of the Optical Society of America, the American Physical Society and the International Society of Optical Engineering. His research interests were primarily in the fields of lasers and optics and their applications in such areas as: atom-field interactions; ultra-high resolution spectroscopy; optical frequency / wavelength standards; and sensors, including optical / fiberoptical gyroscopes, magnetic field sensors, and spectroscopic sensors. He then exploited non-linear optical effects such as stimulated Brillouin scattering in fibers to create a variety of new sensors and optical devices, as well as, novel high frequency sources. He published technical papers and edited several books. At MIT, he has taught a variety of courses, including Dynamics; Modern Optics; Laser Fundamentals; Basics of Measurement Systems; and Optical Sensors. He enjoyed squash, racquet ball, ballroom dancing (where he met his wife, Suzanne) bicycling, walking, theater, ballet, symphony, opera and traveling. With his wife, Suzanne, was Patron at the Boston Ballet and Boston Symphony Orchestra. In 1963, he married Susan Kovnat and lived in Lexington, MA. He has two daughters, Annette Kogan of New York City and Rosalie Poelker of Atlanta, GA. He has 5 grandchildren. In 1985, he married Suzanne Courtright and has been living in Medford, MA ever since. Donations may be made to the Massachusetts General Hospital, of Boston MA, for the Cancer Center, Yawkey Building, 7th floor in the name of Ziggy Ezekiel. Also donations may be made to Massachsetts Institute of Technology, of Cambridge MA, for the Aeronautics and Astronautics Department in the name of Ziggy Ezekiel.

@brendawilliams8062

2 жыл бұрын

Thankyou

Well organized and explained. Many other videos that 'try to avoid the math' are superficial and essentially worthless. This video does an excellent job describing he relevant concepts. Thank you. Mr. Ezekiel.

@user-pl7tf9gv8e

2 жыл бұрын

@@ahmdabdallah5811 I believe the "actual" true

This video has been immensely helpful to me while understanding laser.

Thanks Prof. This video helped me to pass my laser welding course during my PhD in 2012 and now I am reviewing it for my new job and its really efficient.

Brilliantly explained with clear diagrams and smart experiments. Thank you Sir from India.

Great teacher! Great lesson

Excellent explanation with practical examples.Thank you.

i really enjoyed the lecture. He is really an expert.

Thank you so much for your teaching. Now I ha e everything more clear. Thank you so much

I really appreciate the time you put into these lectures. Thanks for the education

so nice representation of laser construction and its fundamentals

So cool! Thanks for this course.

@ginocontestabile6571

3 жыл бұрын

Laser hacking project on the horizon?! 🧐

I have no idea on what he is talking about.. But it's pretty fascinating to watch it

The CGI tricks are amazing!

Thank you so much!

RIP great man

Very well explained

Mannn i found great channel for sains..!! im genius now ..no i mean i will .. love this channel :)

Thank you sir Rest in peace

Holy cow! Jessuss this lecture awesome .Explanations are highly clear and easy to understand. R.I.P Professor Ezekiel.

I wonder why I did not try to search such brilliant courses on KZread several years ago. I watched so many drama TV shows, possibly also cooking, baking, etc...🤣🤣🤣

thank you

The one question that no other video or learning material that I have gone through explains, is how the laser beam starts. Just one simple explanation makes all difference in truly understanding the concept of laser.

@aklikahlal

4 жыл бұрын

It strats with spantneous emission !

@jacobvandijk6525

3 жыл бұрын

And the spontaneous emission is triggered by putting electric energy in the system (by turning a switch), so that the electrons move to higher energy levels.

Thank you

Nice brief sir.thanks

thank you very much' cristal¡

Great lecture, but I wish there was more of an explanation of why stimulated emission works. I know its a quantum effect that has something to do with the heisenberg uncertainty principle but I don't really understand it.

Thankyou

This video makes me think of Albert Einstein's quote: If you can't explain it simply, you don't understand it well enough.

@Szpulenso

3 жыл бұрын

Do you mean that it was not explained clearly enough in this video?

@xiaosong543

3 жыл бұрын

@@Szpulenso I mean he is a true guru.

Thank you. I dabble in holographic imaging, well was professional, back in the 80s, and 90s, but still dabble. This really helps me understand the tools of the trade. :)

Prof Shaoul Ezekiel, 1935 - 2015.

@user-pl7tf9gv8e

2 жыл бұрын

Rest In Peace.

So when photons hit gold and bounce off the as a photon and a weird solid gold molecule light particle form... what if we flung those at stuff?... or maybe solid light is the element needed for things like tangible holograms like bridges and swords ... think halo

God bless the Internet :)

deffinitaly I understand?

I hope to build my own laser

time 54:45..."...exited atom...." Do you mean electron comes down to ground state? instead?

26:23

11 days

Pew Pew Pew

sogoi !!!

How do atoms move through different energy levels? I thought only electrons could do that

@stellaous

4 жыл бұрын

atoms are composed of electrons + protons + neutrons: www.livescience.com/37206-atom-definition.html

@jacobvandijk6525

3 жыл бұрын

In this case you are right. It's all about electrons here. But it's common to say that when an electron is excited the atom is excited. But don't forget that in crystals atoms can vibrate in different modes/at different energy levels too.

LASER GAIN is all good and well, but don't forget that lasers are very energy-inefficient! You get much less energy out than you have to put into them. P.S. No laser is simple!

Science - where the preacher follows every claim with "don't take my word for it, here's a repeatable demonstration". It sure is much easier to have faith in something if I can perform the act myself.

@esoteric bs A month?

so laser code on filament. . . transitioned to simply human chemical placement onto the laser encoded filament for educational purposes.

half Mirror , for output , how the hell we can made that?? DIY.

@Doom2pro

5 жыл бұрын

Mirrors can be made to be 100% reflective and downward from that so they "leak" light out the other side. Typically lasers use one mirror 100% and one 50% (Half the light leaks out)... This is typically done by adding less reflective material to the glass the mirror is made out of.

"This type of laser is difficult to play with" That's where we disagree.

The good professor is not wearing eye protection during his experimental demonstrations. I guess the power of He-Ne lasers must be low. Oh, right, they are used by cashiers to scan bar codes.

where is subtitles for English?

@petersurryez3277

5 жыл бұрын

Go to one of your Indian websites where they say fiber optics were invented by a turban and they remove comments that say otherwise.

i think the explanation is really bad. For sure he tries to explain the best he can but i think there is some deep information that he does not bring to the table. The theorotical explanation i undestand nothing, can memorize what he said but cant do nothing with that

my name is andy cheng ta kao never accept me into mit kthxbye

how old is this video??? seriously...