Single Photon Applications day 1

1
Single Photon Applications (day 1)

• Gravity Detectors / Interferometer
• QKD
• LOQC
• High h
• Quantum Imaging
• Clock Synchronization
• Quantum Repeater
• Magnetometer
• Chem-Bio Agent detection
• QKD attacks via QND
• Noninteraction imaging
• Thz?
• Nsom
• Single Molecule fluorescence microscopy

• Telecomm issues
• Freespace issues
• Night vision/ Astronomy
• Neutrino/ Dark matter detection, cherenkov
• Hyperspectral Imaging
• Bioluminescence
• HPLC Detector
• Blind to stray light
• Radiation hardened/ space qualified
• Environmental monitoring
• Sensors
• Metrology

2
Desires (day 1)

• h50
• h99.9
• high Power
• counting 1 from 2 or ngt2
• many
• cheap
• Array detection
• Array coincidence
• Low timing jitter lt1fs
• Big commercial market
• Short propagation delay
• Polarization sensitive
• Nondistructive - aging
• Minimum cooling needs

• Wide bandwidth
• Narrow bandwidth
• Supernarrow band - heterodyne
• Dual band/ 4 bands
• Low dark count
• High dynamic range
• Wavefront phase sensitivity
• Pixilated in the UV
• Position sensitivity
• Solar blind/ blind where ever you want
• Photon amplification no excess noise, zero
  noise fig
• Space qualified

3
Solutions (day 2)

• Upconversion (IR gtgt Visible)
• Thermal/ bolometer/ superconducting/ cryo
• Advanced APDs materials,
• Low noise amplification
• Hybrid -x
• Atomic ensembles
• Light couplers
• PMT
• MCP
• Arrays
• Non-geiger

4
Potential Roadblocks (day 2)

• Max count rate (atomic vapor)
• Metrology methods
• Solid state pump
• Fiber leakage
• Parasitic fluorescence
• Detector emission (of light)
• Low temp electrical integration
• Robustness- lifetime
• Big leading application needed for industry
• Virtual journal, more meetings focused on single
  photon detectors

• Spotty/no manufacturer
• Low h in some
• Low detection efficiency
• Light coupling
• Commercial market
• Size
• Price
• Real life operation
• Scaling arrays, h, of pixels
• Fill factor mlenses
• Array electronics

5
Future, Summary (day ?)