The HARPIA-TB is a third beam delivery module for the HARPIA-TA unit for 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. Furthermore, HARPIA-TB supports Z-scan measurements.

HARPIA-TB – Third Beam Delivery

Extension Module	HARPIA-TB
Delay range (resolution)	4 ns (4.2 fs)

Dimensions

Extension Module	Physical dimensions (L × W × H)
HARPIA-TB	670 × 252 × 183 mm

Drawings

HARPIA optical layout for multi-pulse experiments

Drawing of HARPIA system with HARPIA-TB and HARPIA-TF modules

State transitions and pulse timing in multi-pulse time-resolved transient absorption spectroscopy

Illustration of state transitions and pulse timing in multi-pulse transient absorption spectroscopy

Illustration of Femtosecond stimulated Raman scattering (FSRS)

HARPIA-TB – Third Beam Delivery Module

Femtosecond stimulated Raman spectroscopy (FSRS) Measurement Data Samples

Femtosecond stimulated Raman scattering dynamics of neoxanthin

FSRS dynamics of neoxanthin using Harpia-TA with Harpia-TB module. Measurement conditions: 25 kHz repetition rate, 440 nm actinic pump wavelength, 200 nJ pulse energy, 530 nm Raman pump wavelength, 300 nJ pulse energy.

Pump-dump-probe Measurement Data Samples

Pump-dump-probe dynamics of DCM laser dye with dump pulse resonant to the emission band of DCM. Measurement conditions: 50 kHz repetition rate, 515 nm pump wavelength, 700 nm dump wavelength, 21 ps dump delay, 90 nJ pump pulse energy, 190 nJ dump pulse energy.

Datasheets