186 reputation
21449
bio website 3.14.by
location Moscow, Russia
age 33
visits member for 4 years, 6 months
seen May 29 at 18:14

Software developer (in love with C++). Hardware geek (FPGA's, STM32, AVR, crazy stuff from discrete components), love LED indicators (7-segment, alphanumeric). Trying to understand ASIC design & manufacturing better at the moment. Also, trying to wrap my head around lens design, but that is not going to be that easy.

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Jun
29
awarded  Notable Question
Jun
28
awarded  Popular Question
Jun
20
awarded  Famous Question
Apr
11
awarded  Popular Question
Mar
9
awarded  Popular Question
Feb
15
awarded  Popular Question
Feb
15
comment Can light emitting diodes be used to generate UV wavelengths?
Now 365nm LEDs are quite common, and even shorter-wavelength ones are available though very expensive.
Jan
5
awarded  Notable Question
Dec
7
answered diffraction grating
Dec
4
awarded  Popular Question
Nov
25
comment Spectrum of generic $\mathrm{CO_2}$ laser
I only have few ZnSe lenses. So for a rough spectrometer I still need suitable diffraction grating and detector. Regarding the specs - there are nothing else, Chinese manufacturers only care about raw output power, that's it. If it is only one line - that would already answer my question, but I am not sure it supposed to be 1 line without line selection.
Nov
23
comment Spectrum of generic $\mathrm{CO_2}$ laser
This is Chinese glass sealed 40W CO2 laser. Building spectrometer for 10um range might be quite challenging task )
Nov
23
revised Spectrum of generic $\mathrm{CO_2}$ laser
added 64 characters in body
Nov
22
comment Spectrum of generic $\mathrm{CO_2}$ laser
It's a sealed tube - if I put anything at the output I'll loose power. The question is "how broad" could it be? Is it 0.1um wide? 1um wide?
Nov
16
awarded  Tumbleweed
Nov
9
asked Spectrum of generic $\mathrm{CO_2}$ laser
Nov
1
awarded  Popular Question
Oct
23
accepted Why GPS is at LEO?
Oct
17
revised Low-cost 532nm DPSS laser modulation
added 74 characters in body
Oct
15
comment Low-cost 532nm DPSS laser modulation
@Eion As a side note, I recently realized that common EOM (Pockels Cells) have quite high switch energy due to high voltage and intrinsic capacitance. This makes it dissipate 10-450W of power on 10Mhz depending on aperture... They typically designed to switch fast, but only few 1000's of times per second.