Welcome to NEP The Technical Staff at NEP has over 100 years of experience in the field of Infrared Detectors. Whether your application is Imaging, Spectroscopy, Environmental Testing, Process Control, Medical or Aerospace, NEP has the products and experience to make your program a success. Engineering and Design Services New England Photoconductor has manufactured Infrared Detectors since 1973. During this time NEP has met detector and electronic requirements for applications ranging from gas analyzers to satellites. Linear and Focal Plane Multiplexed Arrays, our latest introduction to the market, brings innovation and low cost manufacturing to the Spectroscopy and Imaging markets.