From modern lasers to something a bit older: the lakeside view of Mohonk Mountain House, looking much as it has for more than 100 years. The sheer face of the cliff contines into the structure and reflects in the water.
In St. Lawrence’s Raman spectroscopy and microscopy lab, the most potent laser illumination source comes from a neodymium-doped yttrium aluminum garnet. This is a pretty ubiquitous laser source, but I happen to like it because it also demonstrates the value of nonlinear optics: though this laser is emitting light at 1064 nanometers (in the infrared), a suitable doubling crystal can combine two of those 1064 photons together to make a shiny new 532 nm photon.
“Teenage” is a category that remains linked to California, and there are few places where the California/teenager overlap occurs more than in an older-model car jammed full of your best friends on a sunny Saturday afternoon in downtown Berkeley. There are plans to be made! We have to pick up that guy from the BART! What about hitting Grizzly Peak? Time to drive!
Volkswagen (this specific microbus, as well as the overall company) has suffered from some mismanagement. The chrome is scratched, the paint is oxidized, and there’s moss growing in the corners. I’m not sure, come to think of it, that this bus was still running. Perhaps it was another perpetual Berkeley lawn sculpture.
Decaseconds turns five years old just about this week, and today I’m turning 30. “Now” is a good time to think about age and the passage of time, I suppose, but I’d rather focus on something else: achievement. We’ve gotten a lot done in the past years—and there’s a lot more to come. Looking back on my early photographs on places like Berkeley’s Campanile, I can see all of the steps that led me to now. On to the next year!