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Why Detectors are Important Don Figer RIDL, RIT

Why Detectors are Important Don Figer RIDL, RIT. This is Why Detectors are Important. TRANSLATION: With better detectors, you make more discoveries, solve more problems, cure more people, identify more threats, reduce war, and manage resources more effectively. Make Discoveries: Galactic Center.

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Why Detectors are Important Don Figer RIDL, RIT

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  1. Why Detectors are ImportantDon FigerRIDL, RIT

  2. This is Why Detectors are Important TRANSLATION: With better detectors, you make more discoveries, solve more problems, cure more people, identify more threats, reduce war, and manage resources more effectively.

  3. Make Discoveries: Galactic Center El Centro Galáctico: 1967-1994 Gatley/NOAO/KPNO, (PtSi array) G. Neugebauer & E. E. Becklin/Caltech (PbS)

  4. The Galactic Center: Closeup Forrest, Pipher, & Stein 1986, IRTF, 32x32 InSb

  5. ”Imaging” Detectors for non-imaging Applications: Spectroscopy Figer et al. 2000

  6. Cure People

  7. Identify Threats Threats to national space security assets inter-continental ballistic missiles anti-satellite kill vehicle orbital debris laser blinding systems Threats to people/homeland bio/chem hazards dirty bombs

  8. Reduce War Monitoring treaty compliance nuclear proliferation arms buildup Enabling pre-emptive strikes Enabling conflict resolution

  9. Manage Resources Water Vegetation Atmosphere (e.g. ozone) Forests

  10. Enter Quantum-LimitedImaging Detectors

  11. Quantum-Limited Imaging Detectors These detectors are limited by the information carried by a photon. existence wavelength polarization The task to realize these detectors is difficult. It’s “easier said than done…..”

  12. Read Noise

  13. Better Detector or Bigger Telescope

  14. James Webb Space Telescope

  15. Hunt for Dark Energy Brown 2007, PhD Thesis

  16. Finding Earth-like Planets Clampin 2005, SDW

  17. Imaging at Night

  18. Traditional Low-Light Limitations Integration Time Short Infinite

  19. LIDAR+Photon Counting Simulation LIDAR Imaging 3D Point Cloud Integrated 2D Intensity Image Utilizing Laser forIllumination Full Moon Half Moon New Moon Gm-APD as a Photon CounterUnder AmbientIllumination

  20. Key Detector Characteristics Homeland Safety Biomedical Imaging Earth System Science Defense Quantum-Limited Imaging Detector Read Noise Dark Current QE λ λ/Δλ Δt P

  21. Challenges

  22. QLID Technology Challenges Non-standard (non-CMOS) fabrication Cold temperature operation (10’s mK?) False counts (afterpulsing) Long dead times Low spectral resolution Polarization?

  23. Challenges=$$$

  24. George Smith and Willard Boyle Invent CCDs at Bell Labs in 1969

  25. The First Astronomical CCD Image In 1973, the American company Fairchild Imaging developed their first commercial CCD. Consisting of 100 x 100 pixels, it was used in 1974 to produce the first astronomical photo ever taken by a digital camera. It consisted of an image of the Moon captured using a 20-centimetre telescope, by Jim Janesick (http://astro-canada.ca/_en/a2310.html)

  26. Summary Detectors play a crucial role in high performance photon sensing instruments. Some of the most demanding future applications require new advanced detectors. We are at the cusp of the era of quantum-limited imaging detectors

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