Search found 51 matches

by Loic74
Fri Nov 15, 2019 8:19 am
Forum: Off Topic
Topic: Anybody still here?
Replies: 19
Views: 13982

Re: Anybody still here?

I am here as well.
Quite new to this forum I mostly use it to search for info on older posts.
As for the cooling of my lasers I took a custom water-cooled approach

Cheerio
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by Loic74
Mon Sep 02, 2019 1:28 pm
Forum: DCG
Topic: Nice tutorial on YouTube
Replies: 2
Views: 9832

Re: Nice tutorial on YouTube

Thank you Steven, I'll definitely try sometime
by Loic74
Tue Aug 20, 2019 7:40 pm
Forum: DCG
Topic: Nice tutorial on YouTube
Replies: 2
Views: 9832

Nice tutorial on YouTube

Makes you want to try (although am sure it ain’t easy)

https://youtu.be/5IszBMYJ5Ks
by Loic74
Tue Aug 20, 2019 7:50 am
Forum: General Holography
Topic: Introductions
Replies: 88
Views: 4821833

Re: Introductions

Hello W,
I like your blog very much!
Is it a SM optical fiber I see in one of your lab’s pics? I am thinking of testing PM fiber to couple and deliver RGB light to my setup for full color holography tests
by Loic74
Fri Aug 16, 2019 12:44 pm
Forum: Optics
Topic: Poor man's spectrometer
Replies: 3
Views: 13139

Re: Poor man's spectrometer

Thank you for those interesting links. Did you find that grating-based spectrometer had enough finesse to check longitudinal modes of lasers? There’s an interesting blog on the topic and demonstrating SFPI: http://hololaser.kwaoo.me/laser/SFPI.html and more details/theory here: http://www.repairfaq....
by Loic74
Thu Aug 15, 2019 8:43 pm
Forum: Optics
Topic: Poor man's spectrometer
Replies: 3
Views: 13139

Poor man's spectrometer

Clever and cheap spectrometer setup here (although probably more fun than useful re. accuracy):

http://blog.svenbrauch.de/2017/04/05/po ... ctrometer/
by Loic74
Wed Aug 14, 2019 6:37 pm
Forum: Off Topic
Topic: [Presentation] Loic74
Replies: 4
Views: 9920

Re: [Presentation] Loic74

Thx Phil, interesting info about the plasma emissions.
I will study a bit the topic of color gamut and best wavelengths and power choices for true color holography before I settle on a red laser
by Loic74
Mon Aug 12, 2019 8:27 am
Forum: Off Topic
Topic: [Presentation] Loic74
Replies: 4
Views: 9920

Re: [Presentation] Loic74

Will check them out, thank you
by Loic74
Sun Aug 11, 2019 8:15 pm
Forum: Off Topic
Topic: [Presentation] Loic74
Replies: 4
Views: 9920

[Presentation] Loic74

Hey folks, not sure this is the right place to introduce myself but couldn't find a dedicated spot on the forum. So I am new to this forum but not to holography which I discovered almost 30 years ago. In my career I initially worked with Holography for industrial applications with CW (2W Argon) and ...
by Loic74
Sat Aug 10, 2019 9:36 pm
Forum: Events, announcements, and news
Topic: Acoustic holography
Replies: 3
Views: 23526

Re: Acoustic holography

Acoustic holography does actually exist, I worked with such a setup at Peugeot Research Center in Paris some years ago. While you need a reference beam in optical holography in order to record the phase of the object beam, there is no such need in acoustic holography since an array of microphones ar...