Comprehensive Spectroscopy System HARPIA

APPLICATIONS

  • Femtosecond transient absorption and reflection in bulk and microscopy modes
  • Femtosecond multi-pulse transient absorption and reflection
  • Femtosecond fluorescence upconversion
  • Femtosecond stimulated Raman scattering (FSRS)
  • Picosecond-to-microsecond fluorescence TCSPC
  • Intensity-dependent transient absorption and reflection
  • Flash photolysis
  • Z-scan

Features

APPLICATIONS

  • Femtosecond transient absorption and reflection in bulk and microscopy modes
  • Femtosecond multi-pulse transient absorption and reflection
  • Femtosecond fluorescence upconversion
  • Femtosecond stimulated Raman scattering (FSRS)
  • Picosecond-to-microsecond fluorescence TCSPC
  • Intensity-dependent transient absorption and reflection
  • Flash photolysis
  • Z-scan

The HARPIA comprehensive spectroscopy system performs a variety of sophisticated time-resolved spectroscopic measurements in a compact footprint. It offers an intuitive user experience and easy day-to-day maintenance meeting the needs of today’s scientific applications. Extension modules and customization options tailor the HARPIA system to specific measurement needs.

The system is built around the HARPIA-TA transient absorption spectrometer and can be expanded using time-correlated single-photon counting and fluorescence upconversion (HARPIA-TF), third beam delivery (HARPIA-TB), and microscopy (HARPIA-MM) modules. HARPIA is designed for easy switching between measurement modes and comes with dedicated data acquisition and analysis software. Each module is contained in a monolithic aluminum body ensuring excellent optical stability and minimal optical path lengths. For a single-supplier solution, the HARPIA spectroscopy system can be combined with a PHAROS or a CARBIDE laser together with ORPHEUS series OPAs. HARPIA also supports Ti:Sapphire lasers with TOPAS series OPAs.

Model HARPIA
Probe excitation wavelength 1030 nm 515 nm 800 nm
Probe spectral range 460 – 1600 nm 350 – 750 nm 330 – 1400 nm
Spectral range of multichannel detectors 200 – 1100 nm, 900 – 1700 nm, or 900 – 2600 nm
Spectral range of single-channel detectors 180 nm – 24 μm
Delay range 2 ns, 4 ns, or 8 ns
Delay resolution 2.1 fs, 4.2 fs, or 8.3 fs
Laser repetition rate 1 – 1000 kHz
Temporal resolution < 1.4× pump or probe pulse duration, whichever is longer
Maximum data acquisition rate 4000 spectra/s
SNR 1) 250 : 1
  1. Estimated as the standard deviation of a set of 2500 spectra measured in SCHOTT OG530 glass with 54 nJ, 370 nm pump and > 4.5 mOD at a maximum of the spectrum. Not applicable to all samples and configurations.
Model HARPIA
Spectral range 1) 300 – 1600 nm
Spectral resolution 2) ≈ 100 cm-1
Delay range 2 ns, 4 ns, or 8 ns
Delay resolution 2.1 fs, 4.2 fs, or 8.3 fs
Temporal resolution < 1.4× pump or gate pulse duration, whichever is longer
SNR 3) 65 : 1
  1. Depending on the gating source, full range covered with different nonlinear crystals.
  2. Limited by the spectral bandwidth of the gating pulse.
  3. Estimated as the standard deviation of a set of 100 points at 50 ps intervals measured in Rhodamine 6G dye at an upconverted wavelength of 360 nm using a PHAROS laser running at 150 kHz repetition rate; assuming 0.5 s averaging per point. Not applicable to all samples and configurations.
Model HARPIA
Spectral range 320 – 820 nm
TCSPC detector 1) Standard High-speed
Temporal resolution < 180 ps < 50 ps
Maximum measurement range 2) 5 μs
SNR 3) 100 : 1
  1. Different models available; contact sales@lightcon.com for details.
  2. Maximum measurement range can be extended with a phosphorescence upgrade.
  3. Estimated by fitting a kinetic trace measured in Rhodamine 6G solution at 580 nm with multiple exponents, subtracting the fit from the data and taking the ratio between the standard deviation of the residuals and the 0.5× maximum signal value, at 250 kHz repetition rate; assuming 5 s averaging per trace. Not applicable to all samples and configurations.
Model HARPIA
Delay resolution 100 ps
Temporal resolution 2 ns
SNR 1) 40 : 1
  1. Estimated as the standard deviation of a set of 2000 spectra measured in SCHOTT OG530 glass with 515 nm pump and > 10 mOD at a maximum of the spectrum. Not applicable to all samples and configurations.
Model HARPIA
Delay range 1) 2 ns, 4 ns
Delay resolution 2.1 fs, 4.2 fs
  1. 8 ns delay range is available on request; contact sales@lightcon.com for details.
Model HARPIA
Spatial resolution monochromatic polychromatic
5 µm 10 µm
Spectral range 460 – 1100 nm
Temporal resolution 500 fs
Maximum working distance 1) 13 mm
Sample motion range 13 × 13 × 13 mm
  1. Depends on the objective used; contact sales@lightcon.com for details.
Model HARPIA
Physical dimensions (L × W × H) 1401 × 621 × 183 mm 1)
Sample chamber area (L × W) 205 × 215 mm
  1. Without external spectrograph.

The HARPIA-TA ultrafast transient absorption spectrometer features market-leading characteristics such as 0.05 mOD (10⁻⁴ ΔT/T) sensitivity and the ability to work at high repetition rates up to 1 MHz, when used with a PHAROS or CARBIDE laser and an ORPHEUS series OPA. A high repetition rate allows measuring transient absorption dynamics with excitation pulse energies down to several nanojoules.

The HARPIA-TF is a time-resolved fluorescence measurement module that combines fluorescence upconversion and TCSPC techniques. In fluorescence upconversion, the signal from the sample is mixed in a nonlinear crystal with a gating femtosecond pulse to achieve high temporal resolution, which is limited by the duration of the gate and pump pulses.

The HARPIA-TB is a third beam delivery module for the HARPIA-TA unit that adds an additional dimension to time-resolved absorption measurements. It allows multi-pulse time-resolved spectroscopic techniques, in which the ongoing pump-probe photodynamics are perturbed by a delayed third pulse. In conjunction with a narrow-bandwidth picosecond pulse source, HARPIA-TB can be used to perform femtosecond stimulated Raman scattering (FSRS) measurements.

HARPIA-MM is a microscopy module add-on to the HARPIA-TA spectrometer, which enables spatially-resolved pump-probe measurements with a spatial resolution down to 5 μm. The sample can be positioned and scanned in a 13 mm range along XYZ axes using a motorized stage. Microscopic transient transmission and reflection signals can be measured using a broadband or a monochromatic probe.

A single software solution for all measurement modes, featuring:

  • Wizard-guided measurements and calibration
  • Measurement presets
  • Measurement noise suppression using data balancing and outlier detection
  • Diagnostics and data export tools
  • REST API for remote experiment control using third-party software

An ultrafast spectroscopy data analysis software, featuring:

  • Publication-quality figure preparation and data export tools
  • Advanced data wrangling: slicing, merging, cropping, shifting, smoothing, fitting, subtracting, etc.
  • Probe spectral chirp correction, calibration and deconvolution
  • Advanced global and target analysis
  • Support for three-dimensional data sets (2D electronic spectroscopy, fluorescence lifetime imaging)

HARPIA Comprehensive Spectroscopy System

Product datasheet.

Rev. 15/03/2021. Size 6.4 MB.

HARPIA Selection guide

HARPIA components selection guide.

Rev. 12/03/2021. Size 343 KB.

Femtosecond Laser Systems for Science

Product catalog.

Rev. 15/03/2021. Size 12 MB.

飞秒激光器飞秒科研系统

Product catalog in Chinese.

Rev. 26/02/2021. Size 12 MB.