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Cheap, Low-Resolution, Raman Spectroscopy
This guy has built a very impressive Raman microscope with a HeNe-laser (and a 532nm green as well): ... |
25-9-2017 at 05:30
by: tvaettbjoern |
Cheap, Low-Resolution, Raman Spectroscopy
It's true that fluorescence will be a problem for many molecules. I hope it won't be too bad, otherw ... |
27-3-2017 at 12:48
by: tvaettbjoern |
Cheap, Low-Resolution, Raman Spectroscopy
The signal conditioning David Allmon is performing is not about the register imbalance, but to make ... |
6-3-2017 at 05:31
by: tvaettbjoern |
Cheap, Low-Resolution, Raman Spectroscopy
I'm using the stm32f401's built-in ADC. As far as I can see in the [url=http://www.st.com/resource/e ... |
4-3-2017 at 09:06
by: tvaettbjoern |
Cheap, Low-Resolution, Raman Spectroscopy
That is certainly a very tangible improvement. I should look more into this myself..
Your CCD's r ... |
2-3-2017 at 02:45
by: tvaettbjoern |
Cheap, Low-Resolution, Raman Spectroscopy
Interesting. I never looked /that/ close at the data. My understanding of how ADCs work is not parti ... |
18-2-2017 at 07:18
by: tvaettbjoern |
Cheap, Low-Resolution, Raman Spectroscopy
not forgetting, just busy with the work actually pays the rent :/
In Raman's Nobel lecture ( http ... |
7-1-2017 at 10:32
by: tvaettbjoern |
Cheap, Low-Resolution, Raman Spectroscopy
Marvin: Yes, I guess the bandwidth becomes insignificant when measuring far (10 nm?) from the slope. ... |
7-9-2016 at 22:44
by: tvaettbjoern |
Cheap, Low-Resolution, Raman Spectroscopy
Yes that's exactly what it is, I forgot to put titles on my axes..
Yes I think so too. I was expe ... |
7-9-2016 at 09:34
by: tvaettbjoern |
Cheap, Low-Resolution, Raman Spectroscopy
Good work.
About a year ago I read a little up on lasers and reached the conclusion that it would ... |
6-9-2016 at 04:32
by: tvaettbjoern |
Cheap, Low-Resolution, Raman Spectroscopy
ah yes I see the benefits.
I'm also not able find the 540AELP, however I also cannot find the 538 ... |
11-5-2016 at 08:31
by: tvaettbjoern |
Cheap, Low-Resolution, Raman Spectroscopy
I'm afraid the angle of incidence is locked in the design of my spectrometer. I've basically copied ... |
9-5-2016 at 05:13
by: tvaettbjoern |
Cheap, Low-Resolution, Raman Spectroscopy
I've done a few tests with an electrolumiscent/fluorescent LCD backlight, and while the laser is att ... |
3-5-2016 at 06:55
by: tvaettbjoern |
Cheap, Low-Resolution, Raman Spectroscopy
Good work with the filters. I'm eager to see anything that can keep me away from the horribly expens ... |
1-5-2016 at 00:05
by: tvaettbjoern |
Cheap, Low-Resolution, Raman Spectroscopy
Yes I'm waiting for a new CCD-PCB to arrive. It has different dimensions than the older one, and I'm ... |
27-3-2016 at 01:56
by: tvaettbjoern |
Cheap, Low-Resolution, Raman Spectroscopy
I'm slightly jealous, I'm still waiting for the new PCB before going further.
Maybe I missed from ... |
26-3-2016 at 10:13
by: tvaettbjoern |
Cheap, Low-Resolution, Raman Spectroscopy
Here are 5 readings averaged. It certainly cleaned things up a bit (a single frame has noise compara ... |
13-3-2016 at 13:09
by: tvaettbjoern |
Cheap, Low-Resolution, Raman Spectroscopy
I just ran the whole lot through a very small check. All eleven chips work (I broke the OS-pin on th ... |
11-3-2016 at 05:51
by: tvaettbjoern |
Cheap, Low-Resolution, Raman Spectroscopy
I've bought a couple of TCD1304DG's from goodtronic. They were both good.
I bought 10 cheap TCD13 ... |
11-3-2016 at 05:27
by: tvaettbjoern |
Cheap, Low-Resolution, Raman Spectroscopy
I would love to have such a clean signal. Can you reveal any details about what makes for a nice sig ... |
10-3-2016 at 00:31
by: tvaettbjoern |
Cheap, Low-Resolution, Raman Spectroscopy
Nice to know about the wirelength.
I'm using a buffer circuit identical to the typical drive circ ... |
8-3-2016 at 03:06
by: tvaettbjoern |
Cheap, Low-Resolution, Raman Spectroscopy
No (good grief), no then I'd be worried. No the 'humps' is a photogram of the Thorlabs logo on a pos ... |
7-3-2016 at 13:12
by: tvaettbjoern |
Cheap, Low-Resolution, Raman Spectroscopy
Thanks marvin, I will take a look the pdf. I'm waiting for a new pcb to arrive. It's probably not op ... |
7-3-2016 at 03:03
by: tvaettbjoern |
Cheap, Low-Resolution, Raman Spectroscopy
Wow that is impressive. Good work. Now I'm looking even more forward to see your end result. |
5-3-2016 at 00:35
by: tvaettbjoern |
Cheap, Low-Resolution, Raman Spectroscopy
Hi Marvin
Thanks for the kind words and the advice. And thanks for the heads up about the hackaday ... |
28-2-2016 at 01:11
by: tvaettbjoern |
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