Fluorescence Spectrometer for Time-Resolved and Steady State Spectroscopy - FLS1000

The FLS1000 sets the standard in both steady state and time-resolved photoluminescence spectroscopy for both essential research and regular laboratory applications.

  • Faster measurements – increased scan speeds and leading performance
  • Higher resolution – new 325 mm focal length monochromators offer excellent accuracy and superior stray light rejection with minimum step size
  • New Fluoracle® software package – easily accessible user interface and updated features
  • Increased automation – ease of use for even the most multifaceted configurations

The instrument is a modular fluorescence and phosphorescence spectrometer designed to measure spectra from the ultraviolet (UV) to the mid-infrared spectral range (up to 5,500 nm), and lifetimes spanning from picoseconds to seconds. All of this can be realised through a range of upgrade routes, either at the time of order or in the future.

Whether one is researching photophysics, biophysics, biochemistry, photochemistry, material or life sciences, the FLS1000 will enable users to accurately and reliably measure luminescence spectra and kinetics using modern sources, acquisition methods, detectors, quality optics, and precision mechanics. The large sample chamber will house nearly any type of sample accessory.

High sensitivity is a criterion for measurements of low sample concentrations, small sample volumes or low sample quantum yields. The instrument’s definite sensitivity of >30,000:1 (optional >35,000:1) for the basic water Raman measurement using the SQRT technique is unrivalled in the industry.

The FLS1000 has a USB interface and all modes of operation are regulated by ONE data acquisition module and ONE all-inclusive Fluoracle software package for data acquisition and analysis. Light source, grating, slits, detector, and polarizers are all computer-controlled for accurate and precise measurements.

Excitation Sources

The FLS1000 is provided as a standard with a 450 W ozone free xenon arc lamp that covers a range of 230 nm to >1000 nm for steady state measurements.

A range of other sources can be combined including microsecond flashlamps, pulsed diode lasers (EPL Series), pulsed light emitting diodes (EPLED Series), nanosecond flashlamp, supercontinuum lasers, Ti:sapphire lasers, dye lasers, Q-switched solid state lasers and OPOs, and infrared CW and pulsed lasers for upconversion measurements.


Single and double grating Czerny-Turner monochromators are available in the FLS1000 with 325 mm (or 2 x 325 mm) focal length, outstanding stray light rejection, high optical throughput, and low temporal dispersion.

The monochromators feature ‘plug-and-play’ triple grating turrets with up to three gratings on each turret and computer-controlled slits.


A comprehensive range of detector options is available to improve the range of spectral coverage and/ or to decrease the instrumental response width for lifetime measurements. The instrument is provided as a standard with a PMT-900 detector in a cooled housing which covers a range from 185 nm–900 nm, in TCSPC mode the instrumental response width is about 600 ps.

Optional detectors include: high-speed PMTs in a cooled housing with instrument response <200 ps, NIR-PMTs to cover spectral ranges out to 1700 nm with photon counting sensitivity and speed, MCP-PMT in cooled housings with a response <25 ps, InGaAs detectors with spectral coverage up to ~1.65 μm, 2.05 μm and 2.55 μm, InAs and InSb detectors to cover up to 5.50 μm.

Sample Holders

At the center of the FLS1000 is a very large sample chamber that gives access to the sample from all sides, top, and bottom. This guarantees compatibility and streamlines access to a range of sample holders.

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