Publications by authors named "Rudolph N Kohn"
Article Synopsis
- The study discusses the development and evaluation of rubidium vapor dispensers made from highly oriented pyrolytic graphite (HOPG) intercalated with rubidium.
- These IHOPG dispensers outperform traditional chromate salt dispensers by holding significantly more rubidium, using less heating power, and producing fewer impurities.
- The findings indicate that IHOPG can remain stable for over ninety minutes when exposed to air and hint at the possibility of creating similar dispensers using other alkali metals like cesium, potassium, and lithium.
We have achieved high-precision laser beam shaping by using a binary-amplitude spatial light modulator, a digital micromirror device (DMD), followed by an imaging telescope that contains a pinhole low-pass filter (LPF). An error diffusion algorithm was used to design the initial DMD pixel pattern based on the measured input beam profile. This pattern was iteratively refined by simulating the optically low-pass filtered DMD image and changing DMD pixels to lift valleys and suppress peaks.
View Article and Find Full Text PDFWe demonstrate a digital micromirror device (DMD)-based optical system that converts a spatially noisy quasi-Gaussian to an eighth-order super-Lorentzian flat-top beam. We use an error-diffusion algorithm to design the binary pattern for the Texas Instruments DLP device. Following the DMD, a telescope with a pinhole low-pass filters the beam and scales it to the desired sized image.
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