XUV/IR Pulse Delay Unit | SIMTRUM Photonics Store

Our pulse delay unit makes use of our XUV/soft X-ray multilayer double mirrors and combines 

them with our profound knowledge in pump-probe experimental setups. The two-segment 

mirror facilitates focusing IR pulses and lower divergent XUV/soft X-ray pulses onto a common 

focus with an interferometrically precisely adjustable time delay. This allows temporal resolved 

experiments with pumping systems of interest either with the XUV/soft X-ray pulse and probe it 

with the IR or vice-versa. Based on the nature of e.g. attosecond pulses generated in the XUV/

soft X-ray range by high-harmonic generation (HHG) this offers state-of-the-art highest temporal 

resolution for your experiments. The mirror coating can be customized according to the center 

energy and bandwidth.

Key Product Features:

 Temporal resolution: 3 attoseconds

 Scan range: 300 fs

 Adjustment with 5 degrees of freedom

 Customized energy range and bandwidth

 Vacuum combability: <10-6 mbar

 Travel range actuator: ≈ 100 µm (software limits the range from 0-95 µm)

 Resolution actuator: 2 nm

 Travel range: 25 mm

 Step size: < 30 nm

  Working principle of the delay unit. The time delay is introduced by changing the 

  core position(reflecting the XU V/soft X-ray pulses) in respect to the ring 

  (reflecting the IR pulses). Adjustment of 5 degrees of freedom offers perfect 

  control for spatial and temporal overlap in the focus.

  Attosecond photoelectron streaking experiments performed with our XUV/IR 

  pulse delay unit at MPQ (Garching, Germany) are shown above. The top 

  figure depicts the measurement performed with a short 80 as pulse and a 

  3.3 fs streaking IR pulse (its vector potential is shown in dashed white) [2]. 

  The bottom results from a 250 as pulse and a 4.3 fs IR pulse. Both 

  demonstrate the high achievable temporal resolution with our device, the 

  key to innovation and success in ultrafast experiments.