2-07
Jochem Baselmans
SRON and TU Delft
Far infrared imaging spectroscopy using direct detectors
With the development of novel spectroscopic front ends, medium resolution (R~1000) spectroscopy and even high-resolution spectroscopy (R~100,000) is becoming feasible using direct detector arrays. Interestingly, the imaging speed of high-resolution direct detector spectrometers is in many cases superior to heterodyne systems. Additionally, the absence of a local oscillator and the small footprint of especially on-chip front ends such as DESHIMA and Superspec will allow for the construction of true integral field units for the far infrared, with hundreds of spatial pixels (spaxels), and a broad input bandwidth of one octave. The consequence is an enormous detector count of 100,000. Due to their intrinsic ease of multiplexing Microwave Kinetic Inductance Detectors (MKIDs) are ideal for such applications. Reading-out 1000 detectors with a single backend is now possible, and especially for low background loading applications as in spectrometers a factor 10 increase could be possible in the near future.
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