@@EdwinHwuHacks4Science sir it is 250nm then why when u made hole on some surface it was 100micron , and why it make smaller indentation in disc then its actual spot size ? it still amazing in 2023
I have often wondered about the other uses for these OPU's..they are such a practical little unit with a lot of potential...to see this just made my day....
I volunteer to do the voice-overs, for your videos. Yours was the absolute easiest to understand, and I am sure we can come up with something through Google translate and a breath and selection of accents and impersonations that I could use to your fancy.
Absolutely awesome. I am literally in aw. I have played with my own spec and electron microscopes, and only in fleeting thoughts had a thought about using writer/burners. To see it in action and done so well is brilliant. This makes me so happy. Especially knowing you are in it to make things better. Thank you! Keep rockin
Excellent reuse of this OPU technology. The small precise optical elements and the small compactness of the unit definitely allows the use of a possibly portable spectroscopic in field analysis of small microscopic events. I thought before about using parts off the dvd drives for similar applications but unfortunately life gets in the way of progress. There is definitely possibilities of refinements and further applications. Excellent video and presentation! Bravo!
@@EdwinHwuHacks4Science nice in the realm of nano scale printing any other means to control the flow heat or temperature stability during the printing process?
A super data dump of uber interesting info. 'll need to slow it down by about 5x and re-watch a few times to get the full affect. GR8T info if I could just absorb it. Cheers from So.Ca.USA 3rd House On the Left (please call before stopping by)
@@EdwinHwuHacks4Science Thank you for your inquiry. Well, it was beyond interesting and quite amazing with a lot of fast paced information. The images & slides were switching pretty fast, for me, I really just needed to PAUSE it more than I did. It was like having Christmas come and go in 10 min :) I plan to slow it down and watch it from start to finish. And maybe more than once. I'm guessing I may not have been the target audience. Like my last GF said; It't not you.. it's me. You are a gentleman and a scholar Cheers.
Awesome finding this! I was looking for a beam splitter from a Blueray to use for an interferometer for very wideband spectrum analysis and reading what's been used before. Found this research paper and video at the top of the Google search list. Excellent work! I haven't read the paper yet... though downloaded to read later. I assume there is open source software and more detailed plans from briefly watching the video. I comment again if I don't find. Looks like some really excellent work and again, thank you for sharing! I guess while I'm commenting... any suggestions regarding optical materials that are cost effective like first surface mirror, beam splitter, etc.? I was wondering about the dental mirrors as they came up as most cost effective on eBay in my first search (2nd search of first surface mirrors was some more cost effective options) and I have a few of the dental mirrors around from over the years from kits I wanted the other tools from. Wondering what can be done with DVD and CD players too? I've thought about using a harddrive actuator for a diffraction grating control also so can use a more precise blueray disc with the finer lines to sweep for a IR-Vis-UV webcam spectrometer. I just need to somehow get my handlers to let me do some hands on work. Thanks again for your time, service and support!
❤ Amazing! Mr.Spock for sure would do such things if he found a DVD drive. ⚗🔬 That's true hacker spirit - not like foolish kids shooting their eyes out with homemade cat igniters (aka overstrong laser pointers). Question: Can the voice coil mechanism of the OPU be used or modded into a galvo for projecting laser show vector graphics?
Dr congratulations, it's a wonderful project. I am trying to recreate it, however I still have doubts about the interface, more specifically how to pass analog signals to the program you use and more about the electronics and the program, what sofware do you use? what microcontroller do you use? How does it go from an analog signal to labview? I mean what I don't understand is how to connect everything to the pc
The OPU controller was developed by my colleague. Maybe you can read this paper for more details about labview and controls: www.sciencedirect.com/science/article/pii/S2468067222000530
Quite amazing fun work from another scientist that also does AFM based work. In your earlier lecture video, there was an inaudible portion where you had discussed the success rate of achieving vibration isolation using piezo buzzers. What would you say your success rate was in generating an acceptably isolated DIY AFM set-up?
I have the optics and the laser diodes needed for this but I don’t think have the pdic or the component that holds the optics. Can I still accomplish biosensing. Also is this setup capable of optical trapping?
Good morning sir, i'm trying to build and develop a photometric analysis module using an (opu), this detection system will be used to performe photoreflectance spectroscopic measurements in order to characterize the surface of optoelectronic materials, could you please refer me to some articles that could help me with this project?
I was curious to know, if it is possible to directly read the raw filestream from the drive? Also at the same time track the position of the laser or if its possible to read that area data in the raw stream?
@@EdwinHwuHacks4Science oh yeah sure :D that means with that technic, you could build a laseremulator, that can always response the correct data for a requested area? :D But that would be to easy i guess? Else there should already be modchips for ps5 and xbox series x 🤔
What is a good hardware for data acquisition and control signal generation in this case? I'm searching a setup that can be accessed by the everyday hobbyist. I have seen the circuits but there is still this obstacle, considering that access to high resolution oscilloscopes is not always possible...
I bet that for most labs the stage of data acquisition is so trivial that they don't even mention it XD. Reading a lot of papers about OPU here and a lot of information about DAC/ ADC. Thank you very much for the information and the amazing video! I will implement this project physically :)
@@EdwinHwuHacks4Science dear sir I really liked your paper ..could you please help me...I Don't know how to control PDIC could you please send me circuit diagram. mY MAIL IS GK786376@GMAIL.COM
Would you tell us please which is the OPU in this part of the video and also what kind of controller are you using ? ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-5bqujaldaCQ.html
