Welcome to Caltech Observational Cosmology!

Our group develops novel instrumentation in order to study the birth and evolution of the universe. Here are the projects that we are currently involved in:

ACBAR

Arcminute Cosmology Bolometer Array Receiver (ACBAR) imaged the CMB at multiple frequencies with 4' resolution from the Viper telescope at the South Pole.

BICEP

Background Imaging of Cosmological Extragalactic Polarization (BICEP) has mapped three seasons of degree-scale CMB polarization from the South Pole.

BICEP2

BICEP2 builds on the CMB polarization maps from BICEP, using different detector technology, and will deploy to the South Pole in 2009.

BOLOCAM

A a large format, mm-wave camera used at the Caltech Sub-millimeter Observatory to achieve high mapping speed and 1' resolution.

BOOMERANG

The final flight of Boomerang is complete! In January of 2003, Boomerang flew an exact prototype of the polarized 143 GHz Planck HFI focal plane, resulting in the first bolometric detection of CMB polarization. The first round of analyses of the B03 data are complete, papers and spectra have been made public 7/21/05.

CIBER

Cosmic Infrared Background ExpeRiment (CIBER) had its first flight in February 2009! CIBER is studying the origins of the infrared background light.

Planck Surveyor HFI

Planck has launched! We built the bolometric detectors for the High Frequency Instrument on the Planck Surveyor. Planck will map the entire sky with 5' resolution in 2009-2011.

Spider

Spider is a balloon borne observatory designed to probe the epoch of Inflation through measurements of the CMB polarization on the largest angular scales. Large format planar arrays and wide area sky coverage enable a definitive measurement of the signature of inflationary gravitational waves in CMB. Spider's Test flight is scheduled for 2010.