I'm happy to announce that as of July 1, 2011, EOI is now in a larger and more convenient space, still in Briarcliff. As you can see in this photo tour, it provides a much larger lab area as well as a library/storage area and a second office for visitors and perhaps a colleague.
Besides info on do-it-yourself photoreceivers, I am introducing a new line of electro-optical products in cooperation with Highland Technology, a cutting-edge instruments company in San Francisco. The first product is a shot noise limited free space photoreceiver with quantum-limited sensitivity from 60 nW to 100 μW and an honest 1 MHz bandwidth (3 MHz on the 100 μW range). For photocurrents below a microamp, it's significantly better than even the bootstrapped cascode, and it comes in a nice module that fits your setup easily and has normal normal 1/4-20 and M6 threaded mounting holes.
For a start-up: HV power supply and readout electronics for a low-cost radiation dosimeter.