Photodetector/photoelectron spectroscopy analyzer Photon counting detector/photon counter Near-infrared SSPD/SNSPD single photon detector
Tokyo Instruments, Inc
About This Product
■Near-infrared SSPD/SNSPD single photon detector
・No.1 track record in Japan: Over 15 years of sales and support experience, delivery record of over 50 systems
・A soulful product created in collaboration with our company and other powerful suppliers
■Product overview
SSPD is an acronym for Superconducting Single Photon Detector. The material of the detection element is a nanowire structure using NbN (niobium nitride).
It features high detection efficiency, low dark count, low jitter, and high count rate in the near-infrared region. In addition, by combining a mechanical refrigerator and a compressor, it can be used for a long time without the need for liquid helium.
The SSPD element becomes a superconducting state by cooling it to an extremely low temperature of about 2.0 to 2.2 K, and a bias current below the critical current value is applied from a dedicated controller. When a photon enters, it changes from a superconducting state to a normal conducting state due to heat, and outputs a single-photon level signal.
In addition to the bias T, the controller also includes a preamplifier, which amplifies the weak signal from the SSPD element to over 150 mV and outputs it. The heat then diffuses through the substrate on the device and returns to the superconducting state after 5-20 ns, allowing detection at high count rates (1-100 MHz).
■Features
・Mechanical refrigerator (closed cycle) type that does not use liquid helium
・Cooling time: Can be cooled from room temperature to 2K in 4 to 5 hours, can be operated continuously for 24 hours
・Selectable sensitivity wavelength: Peak sensitivity can be selected from 0.7 to 2.3 µm in the near-infrared region, maximum quantum efficiency of 90% or more
・Injection method: Single mode fiber injection (FC/PC type)
・Input channels: Supports channels 1 to 16 (can be expanded up to 16 channels)
・Uses small cryostat (8 channel/16 channel type) and small air cooling compressor
■Touch panel controller unit
・Can be controlled by PC or smartphone
・Monitor the number of incident photons, number of dark counts, and cooling temperature, and obtain detection efficiency vs. dark count data.
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Product
Photodetector/photoelectron spectroscopy analyzer Photon counting detector/photon counter Near-infrared SSPD/SNSPD single photon detector
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Handling Company
Tokyo Instruments, Inc
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Categories
1 Models of Photodetector/photoelectron spectroscopy analyzer Photon counting detector/photon counter Near-infrared SSPD/SNSPD single photon detector
| Product Image | Part Number | Price (excluding tax) | Cooling performance | Dark count | Dead time | Jitter | Nanowire structure | Quantum efficiency | Sensitivity range | Sensitivity wavelength | System type |
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Short-Wave (0.7~1.3 um) HED |
Available upon quote | 2K/0.8K@Mechanical refrigerator that does not use liquid helium | 10 cps | 10ns | 45ps | Niobium nitride (NbN) | 0.85 | 100nm | Short-Wave (0.7~1.3 μm) | HED: High Efficiency Detector - Quantum efficiency of up to 85% or more |
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About Company Handling This Product
- Japan