Probing light-matter interactions in the near infrared region (NIR) can unravel a plethora of research and innovation opportunities. Numerous technologies centered around NIR photon emission have attracted attention in the recent past, for example – photodynamic therapy and bioimaging. Improved NIR probes could transform medicine, enabling a new generation of diagnostic tools and targeted treatments that are less invasive and more effective, ultimately saving lives and improving quality of life for millions. However, a fundamental instrumentation challenge hinders the investigation of photoluminescence (PL) characteristics in the NIR region. Photon detectors used for visible-light detection offer poor sensitivity after 800 nm. Therefore, one must use dedicated NIR photon detectors to probe the PL characteristics of dyes and materials in the NIR region. In 2021, HORIBA introduced a new family of liquid nitrogen-cooled NIR solid-state detectors for the Fluorolog-QM spectrofluorometer. They include four types of InGaAs, one InAs, and one InSb diode.
Modular Research Fluorometer for Lifetime and Steady State Measurements
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