LP980 Transient Absorption Spectrometer

LP980

TRANSIENT ABSORPTION SPECTROMETER

A turn-key spectrometer for nanosecond transient absorption, the LP980 makes fast and accurate transient spectra and lifetimes accessible to any user.

Live Video Demonstration

Send us your samples, and we can measure them live in an online demonstration

Contact us to arrange an online demonstration

Multiple Detectors

High Sensitivity

Multi-Technique

Accurate Kinetics

Wide Spectral Range

Advanced Accessories

PRODUCT DESCRIPTION

The LP980 Transient Absorption Spectrometer sets the benchmark in transient absorption research, becoming the go-to instrument for a wide array of photochemical, physical, and biological applications.

As the first of its kind on the market, the LP980 enables precise measurement of transient absorption (TA), laser-induced fluorescence (LIF), and phosphorescence up to 2.55 µm, with time scales ranging from nanoseconds to seconds. Its dual monochromator/spectrograph design allows for both spectral and kinetic acquisitions in one device, saving you both time and cost.

Available in two models—LP980-K (kinetic PMT detector) and LP980-KS (kinetic PMT and spectral ICCD detector)—the LP980 can be customised with various pump lasers, probe sources, sample holders, and detectors to perfectly match your research needs. Our technical sales team is ready to help you configure the ideal setup for your experiments.

With the intuitive L900® software package, data acquisition is straightforward, and comprehensive analysis tools like ΔOD calculations and multi-component decay fitting are included, eliminating the need for additional software.

PRODUCT VIDEO

PRODUCT DETAILS

SOFTWARE

The L900 software package streamlines every aspect of the LP980, from parameter optimisation and data acquisition to analysis and control of third-party accessories. With everything integrated into a single, user-friendly platform, there’s no need for additional upgrades.

Figure 1: L900 software interface

Before measurement, users can preview and optimize signal intensity, significantly reducing experimental time. The software offers comprehensive spectral calibration, automatic subtraction of camera dark noise, and generates automated maps of time, wavelength, and temperature when paired with the relevant accessories. Decay fitting and other analysis features are also built-in.

For advanced transient absorption curve fitting, the FLASH software package is available.

MEASUREMENT EXAMPLES

Nanosecond TA is an ideal technique for probing the kinetics of triplet states generated by a laser pulse. A key application is the characterisation of photosensitisers for catalysis or photodynamic therapy.

In Figure 1, the TA decay of anthracene is measured in LP980 at different laser energies. Higher laser energies increase the concentration of triplet states, resulting in quenching by triplet-triplet annihilation which leads to a reduced lifetime.

Figure 1: TA decay of anthracene

Figure 2 shows the absorption kinetics of the triplet state of anthracene in cyclohexane measured at 423 nm at three pump laser energies: Epump = 50 mJ (blue), Epump = 10 mJ (red), Epump = 1 mJ (green). Normalised ΔOD traces (bottom) illustrate how the lifetime decreases as pump energy increases.

Figure 2: Absorption kinetics of the triplet state of anthracene

OPTIONS AND UPGRADES

The generation of spectra in kinetic mode by successive measurement at different wavelengths requires many excitation flashes. This can be problematic due to photo-degradation of the sample over time. This can be overcome by upgrading to spectral mode and fitting an ICCD onto the instrument, converting an LP980-K into an LP980-KS.

The ICCD detector has a high dynamic range, 7 ns temporal resolution, and is controlled by the L900 software.

TECHNICAL SPECIFICATIONS

PRODUCT BROCHURE

APPLICATION NOTES

DOWNLOADS

Keep up to date with the latest from Edinburgh Instruments

Join our mailing list and keep up with our latest videos, app notes and more!