Matthias Tecza

Pixel multiplexing for high-speed multi-resolution fluorescence imaging (2009)

Bub, Gil, Tecza, Matthias, Helmes, Michiel, Lee, Peter, Kohl, Peter

We introduce a imaging modality that works by transiently masking image-subregions during a single exposure of a CCD frame. By offsetting subregion exposure time, temporal information is embedded...

New Photometry and Spectra of AB Doradus C: An Accurate Mass Determination of a Young Low-Mass Object with Theoretical Evolutionary Tracks (2007)

Close, Laird M., Thatte, Niranjan, Nielsen, Eric L., Abuter, Roberto, Clarke, Fraser, Tecza, Matthias

We present new photometric and spectroscopic measurements for the unique, young, low-mass evolutionary track calibrator AB Dor C. While the new Ks photometry is similar to that previously published...

Very high contrast IFU spectroscopy of AB Doradus C: 9 mag contrast at 0.2" without a coronagraph using spectral deconvolution (2007)

Thatte, Niranjan, Abuter, Roberto, Tecza, Matthias, Nielsen, Eric L., Clarke, Fraser J., Close, Laird M.

We present an extension of the spectral deconvolution method (Sparks & Ford 2002) to achieve very high contrast at small inner working radii. We apply the method to the specific case of ground based...

The SPIFFI image slicer: Revival of image slicing with plane mirrors (2000)

Tecza, Matthias, Thatte, Niranjan, Eisenhauer, Frank, Mengel, Sabine, Roehrle, Claudia, Bickert, Klaus

SPIFFI (SPectrometer for Infrared Faint Field Imaging) is the integral field spectrograph of the VLT-instrument SINFONI (SINgle Far Object Near-infrared Investigation). SINFONI is the combination of...