Monthly archives: October, 2010

More 2p Cross Sections

Here are some 2p cross sections for Alexa dyes from Invitrogen. Dye manufacturers are getting better about sharing 2p cross sections, but they still rely on out side people to do the measurements. In this case, Warren Zipfel from Cornell.

Speaking of…



Two-Photon Cross Sections

It’s difficult to track down 2p absorption cross sections for dyes and proteins. Doing it right requires (ideally) fluorescence…



PMTs for 2-photon imaging

On the topic of custom two-photon imaging rigs, what kind of PMTs do you want to go with? Naturally, you’ll order yours to be hand selected for high quantum efficiency and…



Arduino – a simple microcontroller

Arduino is a popular, cheap (around 25 USD), and open source microcontroller platform. We use them all over the lab. Students can learn to program them very quickly, they’re versatile, and there is…



CAD-based optomechanics mock-ups

I use SolidWorks to design custom parts for my rigs. Many times, these parts mate with existing Thorlabs parts. Fortunately, Thorlabs offers SolidWorks files that can be directly added…



NIH grants: Score correlations

NIH grants are scored on five dimensions:
1. Significance
2. Investigator
3. Innovation
4. Approach
5. Environment
(link)

What are the correlations between these different dimensions and ultimate grant funding success?
Here’s a table of all the NIH institutions, and the correlation coefficients for these scoring dimensions and ultimate funding success.



RSS feeds for any web page

I follow quite a number of RSS feeds, but there are some news sites that don’t have them. In order to keep up to date, use Page2RSS.

For example, if Nature Neuroscience didn’t have an RSS feed for their Advanced Online…