Products: ProEM EMCCD Cameras

image of ProEM EMCCD Cameras

The Ultimate in Speed, Precision, and Peace of Mind

The thermoelectrically cooled ProEM-HS family of cameras incorporates back-illuminated electron- multiplying CCDs (EMCCDs) with proprietary eXcelon3 technology. These state-of-the-art EMCCD cameras enable a wide variety of low-light-level imaging and spectroscopy applications for scientific research and industrial R&D.

ProEM EMCCD camera systems include the following key features:

  • Patented eXcelon3 technology for highest UV-to-NIR sensitivity
  • Unique vacuum technology backed by a lifetime guarantee
  • Spectra-kinetics mode and ultra-high-speed readout mode
  • EM gain calibration via OptiCAL with built-in light source
  • Simple, high speed GigE interface
  • Powerful 64-bit LightField software


The embodiment of Princeton Instruments’ 30+ years of low-noise, high-performance scientific camera design expertise, ProEM-HS imaging and spectroscopy systems are utilized to perform revolutionary research in leading labs around the world.

These cameras provide all of the essentials for tackling demanding low-light-level applications such as hyperspectral Raman imaging and single-molecule fluorescence, in which EM gain provides single-photon sensitivity. The ProEM-HS camera series supports high-resolution, back-illuminated EMCCDs with exclusive eXcelon3 sensor technology that reduces troublesome etaloning while increasing sensitivity in the UV and NIR. Sustained spectral rates of up to 20 kHz are achievable.

Raman combustion

Temporal variation of laser vibrational Raman spectra of combustion species in a high-pressure turbulent methane-air combustion.(Image credit: Dr. Jun Kojima, NASA).


Patented eXcelon technology
  • Highest sensitivity in UV and NIR
  • Reduced etaloning, back-illuminated CCDs
  • Learn more on the eXcelon web page
Unique vacuum technology
  • Lifetime vacuum guarantee
  • Deep cooling to -90° C
  • Ultra-low dark current for long exposure times
  • Single input window for maximum sensitivity
  • Maintenance-free operation


vacuum puck
Special readout modes for various application requirements
  • Special high-speed
  • Spectra kinetics
  • Kinetics
  • EM gain
  • Low-noise
spectra kinetics
Spectra Kinetics
Imaging frame transfer architecture
  • Eliminates need for mechanical shutter
  • Permits continuous readout of an image or spectrum
  • Sustained full-frame imaging rates of up to 34 fps or > 3 kHz in special high speed readout mode
  • Bias correction provides baseline stability to within a single count



Spectroscopy-format EMCCDs
  •  >20 kHz spectral rate
  • > 300 KHz spectra/sec using special Spectra Kinetics mode
  • Bias correction provides baseline stability to within a single count
  • Ultra-low bin noise


ProEM on IsoPlane
EM gain calibration - OptiCAL
  • Built-in reference light source provides one-click gain calibration
  • Ensures consistent performance over camera lifetime


EM gain
Sensitivity from ~ 120 nm to ~ 1100 nm
  • Broadest wavelength coverage for the widest variety of applications
  • > 95% quantum efficiency (QE)
  • High QE in UV with Unichrome phosphor coating
  • Enhanced sensitivity and reduced etaloning with proprietary eXcelon3 technology
High-speed GigE interface provides:
  • Industry standard computer interface without need for additional hardware
  • Seamless plug-and-play connectivity with the latest desktops and laptops
  • True 16-bit data transfer at 2MHz, 5MHz and 10MHz readout speeds
Powerful 64-bit software delivers:
  • Intutive user interface
  • Easily automate experimental setup for multi-user labs
  • Simple background, flatfield and defect correction
  • Accurate wavelength and intensity calibration for spectroscopy with optional Intellical (TM) software
  • Universal programming interface - PICAM (64 bit) - for custom programming


ProEM EMCCD Camera models comparison and datasheets

Model Imaging Array Sensor Type Pixel Size Peak QE
ProEM HS: 512BX3 datasheet pdf 512 x 512 B/I, eXcelon3 FT (PI Exclusive) 16 x 16 µm ~95%
ProEM HS: 1024BX3 datasheet pdf 1024 x 1024 B/I, eXcelon3 FT (PI Exclusive) 13 x 13 µm ~95%
ProEM: 16002 eXcelon3 datasheet pdf 1600 x 200 B/I, eXcelon3 (PI Exclusive) 16 x 16 µm ~95%
ProEM: 16004 eXcelon3 datasheet pdf 1600 x 400 B/I, eXcelon3 (PI Exclusive) 16 x 16 µm ~95%

B/I = Back Illuminated
FT = Frame Transfer

Fluorescence, Phosphorescence, and Photoluminescence Spectroscopy
Fluorescence, phosphorescence and photoluminescence occur when a sample is excited by absorbing photons and then emits them with a decay time that is characteristic of the sample environment.

Astronomical Imaging
Astronomical imaging can be broadly divided into two categories: (1) steady-state imaging, in which long exposures are required to capture ultra-low-light-level objects, and (2) time-resolved photometry, in which integration times range from milliseconds to a few seconds.

Bose-Einstein Condensate
Bose-Einstein condensate (BEC) can be regarded as matter made from matter waves. It is formed when a gas composed of a certain kind of particles, referred to as “bosonic” particles, is cooled very close to absolute zero.

Combustion researchers rely on laser-based optical diagnostic techniques as essential tools in understanding and improving the combustion process.

Nanotechnology helps scientists and engineers create faster electronics as well as ultrastrong and extremely light structural materials.


Articles Published Using PI Equipment

Photophysiology and albedo-changing potential of the ice algal community on the surface of the Greenland ice sheet
A ProEM 1024 EMCCD and a SpectraPro 2155 spectrograph are used in this research by a team from Greeenland, Denmark and the UK to demonstrate the widespread green algae in the ice sheets in parts of Greenland.

Near-wall velocity profile measurement for nanofluid
Experiments conducted by researchers from Texas A&M University and the University of Qatar captured particle images using a ProEM 512 EMCCD camera attached to an inverted epi-fluorescence microscope.

Cathodoluminescence mapping and thermoluminescence of Pr3+ doped in a CaTiO3/CaGa2O4 composite phosphor
ProEM 1600 EMCCD and SpectraPro 2300 were part of the experimental setup to probe the properties of the one pot prepared composite phosphor of CaTiO3 and CaGa2O4, cathodoluminescence mapping, thermoluminescence and lifetime measurements were carried out.

LSPR Imaging of Silver Triangular Nanoprisms: Correlating Scattering with Structure Using Electrodynamics for Plasmon Lifetime Analysis
The ProEM 512B was part of the experimental setup for the group at Northwestern University's investigation into the optical response of truncated and nontruncated Ag triangular nanoprisms


ProEM+ Brochure


Product Manuals
Download operation manuals for Princeton Instruments cameras, spectrometers, and accessories from our ftp site.


LightField 64-bit software - trial download
Download a 45-day free trial of Princeton Instruments' Revolutionary 64-bit data acquisition package for spectroscopy and imaging.

Tech Notes

A primer on eXcelon3 EMCCD technology
eXcelon3 is a breakthrough technology that provides the best EMCCD performance available on the market.

On Chip Gain
This technical note endeavors to provide a comprehensive look at the advantages and limitations of on-chip multiplication gain, a new CCD technology designed for low-light, high speed imaging.


IsoPlane Imaging Spectrographs

IsoPlane Imaging Spectrographs

Award-winning imaging spectrographs with superior performance over Czerny-Turner traditional designs, available with 203 mm and 320 mm focal length designs.

LightField Scientific Imaging & Spectroscopy Software

LightField Scientific Imaging & Spectroscopy Software

Ground breaking software to control your Princeton Instruments systems. Now with Windows 10 support. It's like nothing you have ever experienced!

eXcelon CCD and EMCCD Technology

eXcelon CCD and EMCCD Technology

Patented CCD and EMCCD sensor technology provides the best fringe suppression and broadest sensitivity in the market



Compact liquid circulator for deep-cooled cameras for efficient cooling.

GigE Fiber Optic Interface kit

GigE Fiber Optic Interface kit

Allows remote operation of GigE cameras from the host PC located up to 550 meters away

Princeton Instruments