ID281超导纳米线探测器
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ID281超导纳米线系列探测器
单光子检测中的佼佼者，具有超稳定的性能
新特点
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| 高检测效率，计时精度，低噪声和快速恢复时间
通过我们瑞士制造的超导纳米线单光子探测器(snspd)，将您的光子实验和应用的极限推到新的高度。 |
在一个ID281系统中，最多可以混合和匹配16个探测器，有一系列的规格可供每个用户定制，包括我们的标准（单像素）、超快（平行像素）和光子数解/PNR（平行像素）选项。 为了增加便利性和移动性，完整的ID281系统还可以提供一系列独立的机架式解决方案。 今天就用ID281超导纳米线系列，让您的光子实验和应用得到最好的效果。 |
主要特点
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| 适合任何场合的探测器
单光子探测器是瑞士制造的SNSPD，具有高探测效率、低抖动、低噪音和短恢复时间的特点。这些探测器（在一个低温系统中，有2到16个SNSPD）被集成到一个自动封闭循环的低温箱中，为长期多年的运行提供了易用性和无与伦比的器件性能。 ID281标准SNSPD：单像素SNSPD设计，具有线性纳米线蜿蜒，在系统检测效率、检测器噪声和计时精度方面提供最佳的整体性能。 ID281超快SNSPD：一种平行像素的SNSPD设计，同样有四个或八个纳米线子像素，但改为用于减轻光子堆积效应。使用这些器件可以实现低于10纳秒的恢复时间，同时仍然受益于ID281 SNSPD系列的效率、精度、噪声性能和宽带操作。 ID281 光子数量分辨：平行像素SNSPD设计，每个探测器由四个或八个纳米线子像素并联组成。这些器件具有独特的能力，可以在一次测量中分辨出多达八个光子状态，同时仍然受益于ID281 SNSPD系列的效率、精度、噪声性能和宽带操作。 |
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| 完整的解决方案
ID281 SNSPD的性能来自于其超导材料（需要在低温下工作），因此我们会在一个交钥匙的低温系统中交付，可以为您的需求量身定做。 IDQ提供所有这些以及更多，使其成为最完整和最通用的SNSPD系统。
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Broad-spectrum near-ideal detection efficiency
Every ID281 SNSPD has a high system detection efficiency (SDE) across hundreds of nanometres, at a user-selected central wavelength. The full range of ID281 SNSPDs provides sensitivity to single photons at wavelengths from below 500 nm to beyond 2 μm.
| Detector wavelengths | < 500 nm to > 2000 nm |
| Broadband detection efficiency | High SDE over > 100 nm range |
| Peak system detection efficiency (SDE) | Standard SNSPDs: ≥ 80% to ≥ 90% (and can exceed 95%) Ultrafast SNSPDs: ≥ 70% (typ. ≥ 80%) PNR SNSPDs: ≥ 70% (typ. ≥ 80%) |
For even broader wavelength ranges, custom optical cavities can be designed, and detectors can be coupled to multimode fibre, on request.
Superb precision
With built-in cryogenic amplifiers, the detector timing jitter is < 40 ps FWHM for all Standard SNSPDs, and can reach as low as < 25 ps. Timing jitter varies depending on detection wavelength, detector design, and detector composition. Lower jitter values can be prioritised on request.
| Timing jitter (FWHM) | < 25 ps to < 40 ps (typ. < 30 ps) |
Ultrafast single-photon counting
All single-photon detectors have a finite time in which they need to recover after a detection event before returning to full detection efficiency, impacting the maximum detection rate that can be practically observed. Standard ID281 SNSPDs are already incredibly fast single-photon detectors, but our novel Ultrafast SNSPD designs give the very best speed in single-photon counting.
| Maximum detection rate (1) | Standard SNSPDs: > 30 MHz (recovery time typ. < 30 ns) Ultrafast SNSPDs: > 100 MHz (recovery time < 10 ns) |
(1) Recovery time defined as the time for the detection efficiency to recover 50% of the maximum after a detection event.
Ultra-low noise
Detector dark counts—spurious detection events that occur with the optical inputs fully isolated—are always negligibly low in all ID281 SNSPDs. Being dominated by low-temperature black-body radiation, these dark counts decrease at shorter wavelengths.
| Maximum dark count rate | < 500 nm to 950 nm: < 5 Hz to < 1 Hz 950 nm to 1300 nm: < 20 Hz to < 5 Hz 1300 nm to > 1600 nm: < 100 Hz to < 10 Hz |
Cryogenic system
Two models of cryogenic system house ID281 Series SNSPDs: the ID281 SO (SOrption) system, and the ID281 CO (Continuous Operation) system. The ID281 SO system achieves the highest SNSPD performance, with longer periods between system maintenance and an overall longer system lifetime, while the ID281 CO system achieves true uninterrupted and indefinite SNSPD operation, and still reaching the performance specifications listed above.
| Cryostat Model | ID281 SO (SOrption) | ID281 CO (Continuous Operation) |
| Detector base temperature | 0.8 K | > 2 K |
| Runtime at base temperature | ≥ 24 hours (2) | Indefinitely |
| Available ID281 SNSPDs | Full SNSPD catalogue | High-speed and low-jitter SNSPDs |
| Key benefits | – Lowest possible timing jitter – Extended system lifetime |
– True 24/7 continuous operation |
| Available detector channels | Up to 16 | |
| Cryostat dimensions | 63 cm x 30 cm x 30 cm | |
(2) Automated operation of the ID281 SO system gives indefinite continuous operation with a scheduled helium condensation cycle every day.