Updates on Hurricane Ida? Join us for Open Call every Tuesday at 2pm Central Time Click here for call-in details!


Author Comment Last activity Moderation
shubham "Hi wyzac How are you planning to go forward with aluminium holographic foil? Have you tried them already? I am using a flat-field concave grating ..." | Read more » about 5 years ago
shubham "Thanks Warren for the advice. I searched a bit on internet and I think its important that the silver salt crystal to be of sub micron size to get s..." | Read more » over 5 years ago