First CMB Polarization Measurements from SPTpol

The South Pole Telescope (SPT) is a 10-meter mm-wave telescope located at the geographic South Pole, and dedicated to measurements of the cosmic microwave background (CMB). We installed a new, polarization-sensitive receiver (SPTpol) in January 2012, and spent the 2012 Austral winter observing the 100 square degree SPT deep field. SPTpol is among the first of a new generation of CMB experiments capable of detecting the $\sim$100s nK fluctuations of the CMB's B-mode polarization. It has 1536 polarization-sensitive detectors split between 150 GHz and 90 GHz observing bands, and can measure arcminute-scale features on the CMB sky. Here I present early results from the SPTpol E-mode and B-mode CMB polarization measurements.