Solar Nebula Magnetic Fields Recorded in the Semarkona Meteorite

November 17, 2014
Semarkona meteorite

Fig 1: Dusty olivine-bearing chondrules from the Semarkona meteorite. Optical photomicrograph of chondrule DOC4 showing the location of dusty olivine grains. Image taken in reflected light with crossed polarizers. [From: Roger R. Fu, et al., "Solar nebula magnetic fields recorded in the Semarkona meteorite," Science DOI: 10.1126/science.1258022. Reprinted with permission from AAAS.]


The Future of Astrophysical Neutrino Measurements

November 17, 2014
A microfabricated array of TES bolometers

Figure 8:An example of a microfabricated array of TES bolometers, an 88 pixel, dual polarization TES bolometer array made at NIST for the SPTpol experiment. TES detectors are micro-machined from thin films deposited on silicon wafer substrates which means TES-based devices are fundamentally fabricated as arrays. [from K.N. Abazajian, et al., "Neutrino physics from the cosmic microwave background and large scale structure," Astroparticle Physics, v. 63.]


High-Z Supernova Search Team Shares the 2015 Breakthrough Prize in Fundamental Physics

November 10, 2014
High-Z Supernova Search Team

Professor Christopher Stubbs is a member of the High-Z Supernova Search Team which, together with the the Supernova Cosmology Project, have been awarded the 2015 Breakthrough Prize in Fundamental Physics "for the most unexpected discovery that the expansion of the universe is accelerating, rather than slowing as had been long assumed."


New Nanoscale Tools for Interrogating Living Cells and Cell Networks

November 8, 2014
Nano-Bio Interfaces

Electrodes and electrode arrays capable of recording electrical signals from neurons come in an increasing number of shapes and sizes, and researchers are continuously adding capabilities. Nature Methods profiled several scientists working on new types of electrodes which are delivering ever more electrophysiological information from both intracellular and extracellular measurements, among them Prof. Hongkun Park's research group and its work on vertical nanowire electrode arrays.


NMR Sees the Spin of a Single Proton

November 5, 2014
Coherent control of reporter spins

Figure 2(a): Coherent control of reporter spins. Rabi oscillations between spin states with a variable-width pulse (red points) with an exponentially damped fit (blue line). Inset: rf pulse sequence. [From: A. Sushkov, I. Lovchinsky, N. Chisholm, R.L. Walsworth, H. Park, and M.D. Lukin, "Magnetic Resonance Detection of Individual Proton Spins Using Quantum Reporters," Phys. Rev. Lett. 113, 197601 | DOI: http://dx.doi.org/10.1103/PhysRevLett.113.197601. Copyright ©2014 by The American Physical Society]