Top Ten Experiences in the Photonics Center This Week
10) Our green laser got so faint that our system didn't have enough light to work anymore. Who knows why...those things are supposed to last forever!
9) So we installed a new laser (it's red) after our first one died, then...
8) Spent a day realigning the optics after we installed the new laser. There is an art to aligning optics, making sure the beam is level and get the lenses in the right place. Dr. Bifano did the whole thing in less than an hour the first time. It took us a whole afternoon...we're still learning!
7) Went back to the clean room to finish the photolithography process by depositing titanium and gold then wash away the photoresist.
|The wafers after deposition but before we rinse off the phoresist|
|The evaporator where we deposited the metals|
|A diagram of the process|
4) Who would have thought that the prefect amount of messiness can be found by painting clear nail polish on glass! We tested it out on a couple of slides until we found a good technique. The key, if you are wondering, is the right amount of swirl as you brush on the polish.
3) Then we made this wheel that can spin through different patterns of nail polish and see if our system can keep up. This is similar to how the atmosphere is continuously changing.
2) But mostly we worked on a GUI (pronounced gooey - stands for Graphical User Interface) that can be use to control our program. Here are a couple screen shots: notice all the sliders and push buttons that would have previously been changed by editing the code.
1) Had a couple of really great lunches! Loving the Student Union.