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Photomultiplier Detection System

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Photomultiplier Modules




  • Modular Design for up to 8 Channels
  • Broadband Spectral Response: 185 - 900 nm

Features

  • Ideal for Laser Scanning Microscopy
  • Compatible with Thorlabs' Laser Scanning Essentials Kits
  • PMT Modules Expandable to up to 8 Channels
  • Included with Two-Channel Module
    • Two Multi-Alkali PMTs
    • Removable Fluorescence Filter Cube
    • SMA Fiber Adapter for Attaching Multimode Fiber Patch Cables
  • Stand-Alone Multi-Alkali PMT also Available
  • Broadband Spectral Response: 185 - 900 nm

Two-Channel (PMTSS2) and Single-Channel Add-On (PMTSS-SCM) PMTs
Thorlabs' Photomultiplier Tube (PMT) Modules are designed for easy integration of PMT detection into imaging systems such as our Laser Scanning Essentials Kit. The PMTSS2 Two-Channel PMT Module consists of two multi-alkali standard sensitivity PMTs, a DFM dichroic filter cube insert, and a base. The filter insert enables easy exchange of dichroic mirror/emission filter sets. This configuration enables dual-channel detection of signals at two different wavelengths. The two multi-alkali PMTs incorporated into this module offer high detection efficiency with broad spectral response from 185 - 900 nm; plots of quantum efficiency and sensitivity vs. wavelength are shown on the Specs tab.

The input port of the filter block features SM1 (1.035"-40) threading, which is directly compatible with a wide array of Thorlabs' SM1 lens tubes and fiber collimation adapters. The module is provided with an SMA fiber connector for attaching an SMA-terminated multimode fiber patch cable. The base of the module is equipped with 1/4" (M6) slots for attachment to an imperial or metric optical table or breadboard. Due to the weight of the unit, we recommend placing it on a table or breadboard.

The number of detection channels can be increased by adding on our PMTSS2-SCM add-on modules. This allows the two-channel PMTSS2 modules to be expanded to as many as 8 detection channels, a limitation of the beam divergence associated with the fiber input.

Stand-Alone PMT Modules (PMTSS)
For those interested in purchasing the PMTs alone, we offer the PMTSS, which is the multi-alkali PMT detector without the filter block and base. The detectors have a C-mount internal thread. For compatibility with our SM1 lens tubes, the C-mount thread can be converted to external SM1 threads with our SM1A9 C-mount to SM1 adapter. For compatibility with a 30 mm cage system, an SM1T2 externally SM1-threaded coupler can be attached to the SM1A9, which is compatible with any of our SM1-threaded 30 mm cage plates. The photographs to the right show how the PMTSS may be attached to the end of a cage system.

All PMT modules include a power cable for wiring to a user-supplied 15 V power supply and 0.25 - 1 V variable gain control. Detector data output is supplied via BNC connector.

 

ABOUT US

Our Mission is to accelerate the advancement of optical technology for precision measurements and their applications from the table tops of research laboratories to standard use in communication and high technology industries. Our aim is to serve our customers. Our hope is to create a place for highly skilled people in an open environment

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