Viewing posts from September, 2017

Compressive-Scan Camera: 1-Channel IR Detector Analog Front End

In cooperation with InView Technology. Compressive scanning is a scheme for doing image sensing with a single-element detector, without suffering the N2 speed penalty of raster scanning. It's a sort of combination of scanning and image compression—you use a digital micromirror device (DMD) to multiply the image by a series of 1-bit digital basis functions, measure the resulting photocurrent, and then invert the transform to produce a compressed image. That's not too useful in the visible, where image sensors are cheap commodity items, but in the UV and especially the shortwave IR (SWIR), image arrays are extremely expensive, so there's a need for compressive scan cameras.

Current Amplifier for Nanopore Biochips for DNA Sequencing

Discussion on the topic here.

Instrumentation: Wideband Laser Noise Canceller

> 60 dB of laser RIN cancellation out to > 10 MHz, about 100 times faster than current commercial devices

Spectroscopic-Detection Biochips Based on Photonic Waveguides

Using POEMS to design waveguides, coupling structures, and optical/chemical interaction regions; consulting on microfabrication issues

Bootstrap Charge Sensitive Front End

This is for for a scanning surface potential measurement tool, used in contamination detection in semiconductors: 40 attocoulomb sensitivity in a 4 MHz bandwidth