Silicon photomultiplier(SIPM) | SIMTRUM Photonics Store

The Silicon Photomultiplier (SiPM) is designed with advanced microstructure, consisting of an array of avalanche photodiodes operating in Geiger mode. The SIM_SiPM series boasts industry-leading low dark count rate and high photon detection efficiency (PDE), high gain, single-photon sensitivity, and the ability to detect from ultraviolet to visible light. These SiPM exhibit performance characteristics similar to traditional photomultiplier tubes (PMTs) while benefiting from the practical advantages of solid-state technology: low operating voltage, excellent temperature stability, robustness, compactness, and uniform output. They enable ultra-sensitive photon counting even in extremely weak light conditions, ensuring stable operation in harsh environments and resistance to strong magnetic fields and radiation interference. Common applications include medical imaging, particle physics research, and precision security in cutting-edge fields.

Features

• High PDE：Utilizing a microcell structure with up to 504 to 18980₍₁₎ microcells, the overall photon capture capability is significantly enhanced. This results in a PDE of "14% to 47%₍₂₎, making the SiPM suitable for applications such as optical imaging and nuclear medicine imaging.
• Low Dark Count： The detector outputs a minimum voltage of 2 mV ₍₃₎ under no-light conditions, reducing the likelihood of false alarms and improving measurement accuracy.
• High Gain：The SiPM detector has a gain of up to 6 × 10^6 ₍₄₎ or higher, effectively amplifying and detecting even very weak light signals. Additionally, it has a broad spectral response range covering 300 to 950 nm, making it an ideal choice for multispectral applications.
• Temperature Stability： Integrated with a TE cooling module ₍₅₎, the detector minimizes the impact of external temperature variations.

(1)(2)(4) Available in Various Microcell Sizes for Different Performance Parameters. (3) Experimental Results at 21°C. (5) Under Development.

Applications

• Medical Imaging ： In nuclear medicine imaging techniques such as Positron Emission Tomography (PET) and Single-Photon Emission Computed Tomography (SPECT), SiPM can efficiently detect gamma photons emitted by radioactive tracers, improving image resolution and sensitivity, thereby helping doctors diagnose diseases more accurately.
• LiDAR： SiPM have low power consumption, high bandwidth, and fast response times, which minimize range measurement time. They can leverage the advantages of low-laser-power dToF (direct Time-of-Flight) ranging technology, offering low noise and high gain characteristics to achieve excellent SNR (Signal-to-Noise Ratio).
• Security and Safety Systems ： Radiation monitoring and X-ray scanning equipment use the high sensitivity of SiPM to detect trace amounts of radiation, enhancing the detection capabilities for explosives, drugs, and other contraband, thus improving public safety.
• Bioluminescence and Fluorescence Detection ： SiPM are used to detect fluorescence or bioluminescence signals from biological samples with high sensitivity, such as in gene expression analysis, cell viability assays, and protein interaction studies, thereby improving the accuracy and efficiency of experiments.

Performance

Components

Product specifications

Visible Single Photon Detector(SPD)

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