The PicoHarp 300 can be used in different operation modes: h-end, easy-to-use, plug and play Time-Correlated Single Photon Counting (TCSPC) system. It is connected to a PC through a state of the art USB 2.0 high speed interface. A new design approach provides identical and synchronized but independent input channels. They can be used as detector inputs for coincidence correlation experiments or as a pair of start and stop inputs for TCSPC. It allows a forward start-stop operation even at full repetition rate of mode locked lasers with stable repetition rate up to 84 MHz. Experiments with low repetition rate benefit from the PicoHarp's multi-stop capability. The design allows high measurement rates up to 10 million counts/sec and provides a highly stable, crystal calibrated time resolution of 4 ps. This time resolution is well matched to the SPADs of the PDM series or micro-channel plate photomultiplier tubes (MCP). Overall IRF widths down to 50ps can be achieved withpulsed diode lasers. With short pulsed lasers such as Ti:Sapphire lasers IRF widths as short as 30 ps can achieved. Both input channels are equipped with constant fraction discriminators (CFD), sensitive on the falling edge.

The HydraHarp 400 is a high-end, easy-to-use, plug and play Time-Correlated Single Photon Counting (TCSPC) system with scalability for multiple channels*. It is connected to a PC through a USB 2.0 high speed interface. It provides identical synchronised but independent input channels. They can be used as detector inputs for coincidence correlation experiments as well as independent stop inputs for TCSPC. A dedicated common sync input is provided for TCSPC with fast excitation sources. This allows forward start-stop operation at the full repetition rate of mode locked lasers with stable repetition rate up to 150 MHz. Experiments with low repetition rate benefit from the HydraHarp's multi-stop capability.

A family of photon counting and timing systems ranging from the world's smallest and lowest cost photon counting device, the PCDMini, which is optimized for high volume commercial OEM applications, to the world's first intelligent multi-channel photon counting and timing system, the PCMPlus, with an integrated counter, timing electronics and USB interface. SensL is the first to include high end microprocessing power inside its low light sensing modules. Controlled via a Java based graphical user interface SensL's products can be directly integrated into low light sensing applications without the need for additional counting cards or data analysis software. An example of the benefit of this integration is evident in the PCMPlus, which integrates high level functionality such as Time Tagging with 2.5ns resolution, Time Binning Multi-channel Scalar/Averager (MCS/ MCA) and Time Correlated Single Photon Counting (TCSPC) into a single convenient plug and play system. The new HRMTime introduces a <100ps timing resolution option in addition to the other PCSTime functionality described above.

PCDMini - High Performance Photon Counting Device

SensL's PCDMini Photon Counting Device is the first miniature photon counting system on the market and features SensL's new quenching architecture with optional snap-on boards for enhanced functionality. The sensor is hermetically sealed and available with an optional add-on cooler board for applications that require extremely low Dark Count. In addition, an optional snap-on USB Interface Board is available which significantly simplifies the task of integrating the PCDMini into any measurement system. Its integrated counter functionality eliminates the requirement for a separate data acquisition system. This ease of integration, combined with the compact and miniature form factor of the product makes the PCDMini the ideal photon counting solution for OEMs.

Read more about PCDMini 

HRMTime - High Resolution Timing Module

SensL's HRMTime module is the first USB high resolution photon timing system on the market. It is a highly functional system incorporating all the high end photon timing functions in an easy to use, flexible and high performance system. Most importantly its novel timing circuitry enables a photon timing resolution of <100ps and it is available in one, two or four channels. The system design is optimised for SensL's Photon Counting sensor products but is also compatible with any photon counting sensors. Offering Photon Time Binning, Photon Time Tagging, Multi channel Averager/Scaler, Multi Dimensional Time Correlated Single Photon Counting (TCSPC) and Auto/Cross Correlation functionality in a single platform together with a range of display, statistical analysis and data export tools (via the SensL Integrated Environment software).

Read more about HRMTime 

SensL offers the world's first direct replacement for linear Photomultiplier Tubes (PMTs). The SensL Silicon Photomultiplier is based on a new and novel silicon structure optimised for low light sensing over a large area. The silicon photomultiplier combines the high gain (10⁶) of PMTs with the form factor, low voltage (<50V) and mechanical robustness of silicon APDs. It is the ideal solution for low light sensing OEMs striving to design portable, smaller and lower cost systems. This novel concept is also revolutionising the sensor technology used in all radiation detection and scintillator based sensing applications, especially Nuclear Medicine and High Energy Physics.

Photonis are the leading supplier of Photomultiplier Tubes (PMTs). 

Photomultiplier tubes, also called phototubes in the past, operate with a very high incorporated gain as well as a reasonable quantum efficiency. This type of light detector with incorporated electron multiplier is used in detectors of nuclear medical imaging systems such as scintialltion cameras (also called gamma camera) and positron emission tomography (also called PET). Such devices are also used in many industrial applications requiring low light level sensors such as Scintillation counting, oil well logging, drum scanner, biomedical technologies, fluorescence Lifetime, measurement system, semiconductor processing and failure Analysis.

Many scientific fields also require this type of detectors such as high energy physics, nuclear and neutron physics, neutrino physics, telescopes. In some cases where a large number of channels is needed as well as compacity, multichannel, multianode or multipixel photomultiplier tubes are used.

Many different accessories are also available such as magnetic shield cases, sockets, voltage dividers. Photosensor modules, PMT assemblies or packages are also available. They can include different different electronic functions and processing electronics associated with the PMTs such as power supplies, photon counting, amplifiers .

Details of available models are listed below. 

SensL's SPMMicro series is a High Gain APD and encapsulates SensL's world-leading APD technology in a variety of miniature, easy to use, low cost packages. The SPMMicro detector series is suitable for applications requiring high sensitivity, low noise detection in the visible to near IR range.

The SPMMicro series is a solid-state detector sensitive to single photons. The detector consists of an array of Geiger Mode Avalanche Photodiodes (APDs), each individually coupled to integrated quench electronics. It is a type of detector commonly referred to as a Silicon Photomultiplier (SPM). The SPMMicro combines high gain and quantum efficiency characteristics comparable to Photomultiplier Tube (PMT) detectors with the additional benefits of silicon technology such as compact size, magnetic field insensitivity, low operating voltage, robustness, and tolerance to overexposure

SensL offers two detector sizes for the SPMMicro series, a circular 1mm diameter and a square 3mm x 3mm active area. Two SPM design options are available where the number and size of the microcell in the SPM are varied for PDE optimization and optimal Dynamic Range.

These detectors come in a variety of pin package formats according to footprint requirements, levels of hermeticity, and cooling. These include glass/metal sealed transistor header package types (TO46, TO5, TO8) and ceramic packages (TO5 pin compatible) where the detector is mounted on a ceramic and covered with a clear epoxy resin for applications that applications that require excellent coupling to scintillators as an example.

Please see the PDF for full product specification

Please click here for product options