Entries this day: Angstroms hac_yac spot

Angstroms

8am Sunday 13 January 2002

I cleared out several messages from my email inbox and found this from last year.

Special Seminar

11:00 am, Thursday, 2/22, 200-203 (Note - this is on the far corner of the main quad)

Thermal Engineering at Extreme Scales

Samuel S. Mao
Lawrence Berkeley National Laboratory

ABSTRACT

Research in science and technology at small length and time scales is taking place in a growing number of laboratories throughout the world. New phenomena that manifest themselves at the nanometer scale will dominate the operation of miniaturized devices that may revolutionize information and biological technologies. New processing and probing approaches based on ultrafast laser technology will facilitate efficient fabrication and diagnostics in the small dimensions. Despite substantial progress in understanding laser processing of electronic materials, in particular, at the nanosecond and longer time scales, it remains a considerable challenge to elucidate the underlying mechanisms for picosecond laser-material interactions. In this seminar, recent experimental and theoretical developments on picosecond laser ablation will be discussed. Picosecond time-resolved process diagnostics will be presented along with the observation of a short-lifetime, microscale plasma that is responsible for an unexpected reduction of ultrafast laser ablation efficiency. A theory is also developed for picosecond energy transport in semiconductors. In addition to ultrafast laser engineering, this seminar will provide an overview of the research that the author has been carrying out in the field of nanotechnology. These activities include development of patterned nanowire systems for photonic applications; thermal modeling of nano-structured surface-emitting semiconductor lasers; experimental investigations of interface properties of nanoscale particles; and fluid dynamics in two-dimensional molecular films.

hac yac

12:23pm CST Sunday 13 January 2002

Before HAC YAC meeting I decided to revisit the place where my bike got TOTALLY mud bogged so that I couldn't ride it.

Basically I had to get off at the telephone pole, and drag/carry my bike to where the freeway ramp up becomes an "overpass" bridge thing.

Crazy!

spot

6:23pm CST Monday 14 January 2002

On Sunday after HAC YAC meeting, where we finalized plans for Houston Rally, (which is this weekend!!!!!) I visited Paint This! and brought Spot so he would get some fresh air and new experiences instead of just being a lazy indoor cat:

He was great on the way there in the car. No crying or anything. When we arrived he was all claws in my shoulder at first, but then chilled and snooped around the shop. After about an hour or so, he vanished.

We found him sitting sneakily under a table on some boxes.

I'm glad he had a fun time.