Comments

Author Comment Last activity Moderation
ethanbass "@dhaffnersr - I'm curious, what do you mean by a "variable LED to control wavelength"? " | Read more » almost 9 years ago
ethanbass "One more thing to consider is that our DVD diffraction gratings would probably filter out most of the UV light below about 390 nm, even if we had a..." | Read more » almost 9 years ago
ethanbass "@warren - According to the paper that figure is lifted from, you will get increasing fluorescence intensity (or quantum yield), as you increase the..." | Read more » almost 9 years ago
ethanbass "@warren & @stoft - It's important to remember that the range of fluorescent emissions is determined in large part by the excitation wavelength ..." | Read more » almost 9 years ago
ethanbass "@warren - I don't think using a 395 nm LED or an even shorter wavelength is really going to solve the problem of the overlap between the light scat..." | Read more » almost 9 years ago
ethanbass " " | Read more » almost 9 years ago
ethanbass "Hey Matej, there's something going wrong with the way your second and third sets are showing up there! They've got all of those squiggles showing u..." | Read more » almost 9 years ago
ethanbass "I too would be curious to know what criteria you used for selecting the winning CFL bulb. Perhaps you could expand this note by adding some spectra..." | Read more » almost 9 years ago
ethanbass "@warren - Please do send one along. I'd be happy to do some comparisons. " | Read more » almost 9 years ago
ethanbass "Hmm, how did you use the bike light to calibrate your spectra? If it's an LED, it doesn't have the characteristic peaks that the calibration proced..." | Read more » about 9 years ago
ethanbass "Yes, I see what you mean. But I don't understand why it would be clipped to the left of the peak and not at the peak itself, where the intensity is..." | Read more » about 9 years ago
ethanbass "which spectrum are you looking at? " | Read more » about 9 years ago
ethanbass "That button appears to me when I'm on the page for a spectrum, but not when I visit the page for a set. " | Read more » about 9 years ago
ethanbass "Hi, I'm not sure why scans #2 and #5 came out so much rounder than the rest of the spectra. I think it has to do either with the angle of the spect..." | Read more » about 9 years ago
ethanbass "Also, you should know that the blue peaks are always going to be weaker. Were any of the spectra you posted captured through the plastic bag? I not..." | Read more » about 9 years ago
ethanbass "Cool. You've got some really nice pictures of the cuvette frame assembly. For calibration, have you tried capturing the light reflected from a piec..." | Read more » about 9 years ago
ethanbass "Hi, in regards to your question about the placement of the DVD fragment, I think the idea is to align your camera so that it is pointed as close to..." | Read more » about 9 years ago
ethanbass "How about using vegetarian capsules? This kind is made out of hydroxypropyl methylcellulose (or HPMC). They also make vegetarian capsules out of pu..." | Read more » about 9 years ago
ethanbass "Cool. I can't figure out how to use version 2 to capture spectra. Maybe i am not looking in the right place, or it is not up yet. So far, I've only..." | Read more » about 9 years ago
ethanbass "I will be attending! " | Read more » over 9 years ago
ethanbass "I will be attending! " | Read more » over 9 years ago
ethanbass "I will be attending! " | Read more » over 9 years ago