Unterschiede

Hier werden die Unterschiede zwischen zwei Versionen angezeigt.

--- projekte:dvdlsm:start [2021/02/07 00:32] – thasti
+++ projekte:dvdlsm:start [2021/02/07 22:25] – [PDIC] thasti
@@ Zeile 1: / Zeile 1: @@
 ~~NOTOC~~
-====== DVD-Drive-Based Laser Scanning Microscope ======
+====== DVD-Drive based Laser Scanning Microscope ======
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@@ Zeile 59: / Zeile 59: @@
 It was conjectured that the smaller inner quadrants were responsible for the low-sensitivity outputs, while the outer segments would produce a large amplitude (due to their larger light collection area).
-In a second reverse engineering session, the exact pinout was determined by means of selective illumination: For a given test, two IC output pins were compared using two DVMs, and an aperture was slowly moved along the surface, either vertically or horizontally. This would in a change of the output voltage for one of the outputs slightly earlier than for the other one. In this way, the positional relationships between all output pins could be resolved, forming a final assignment of diode quadrants to output pins.
+In a second reverse engineering session, the exact pinout was determined by means of selective illumination: For a given test, two IC output pins were compared using two DVMs, and an aperture was slowly moved along the surface, either vertically or horizontally. This would in result a change of the output voltage for one of the outputs slightly earlier than for the other one. In this way, the positional relationships between all output pins could be resolved, forming a final assignment of diode quadrants to output pins.
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@@ Zeile 153: / Zeile 153: @@
-Scan of an I2C test chip from my colleage Szymon (fabricated in 65nm CMOS, picture below). Scan area 1x1mm.
+Scan of an I2C test chip from my colleague Szymon (fabricated in 65nm CMOS, picture below). Scan area 1x1mm.
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+Finally, here are two videos of the device in Action:
+  * Focusing: https://youtu.be/iFzVEHeG0xE
+  * Scanning: https://youtu.be/cj5zdhJTQUs
 ===== Summary =====
@@ Zeile 169: / Zeile 174: @@
   * PC software: https://git.loetlabor-jena.de/dvdlaser/dvdlaser_sw
+===== References =====
+I'm of course not the first one to build something like this. Here's some sources of my own inspiration:
+  * http://www.gaudi.ch/GaudiLabs/?page_id=652
+  * https://www.instructables.com/Laser-Scanning-Microscope/
+  * https://pubs.acs.org/doi/10.1021/acssensors.8b00340
+  * https://www.researchgate.net/publication/321233124_Generating_SEL_and_SEU_with_a_class_1_laser_setup