- Picosecond pulses from femtosecond pump
- 210 – 4800 nm tuning range
- 800 fs – 3 ps pulse duration
- < 20 cm-1 spectral bandwidth
- Up to 100 kHz repetition rate
- High output stability
ORPHEUS-PS is a narrow-bandwidth optical parametric amplifier (OPA), designed for PHAROS and CARBIDE lasers. The device is pumped by picosecond pulses produced in a second harmonic bandwidth compressor SHBC and is seeded by a white-light continuum generated by femtosecond pulses. This enables very high pulse-to-pulse energy stability compared to other methods for generating tunable picosecond pulses. The white-light generation is integrated into the same housing as the amplification, enabling high long-term stability and ease of use. The system features high conversion efficiency, bandwidth- and diffraction-limited output, and full computer control.
Part of the pump laser radiation can be split to simultaneously pump a femtosecond OPA, giving access to the complete set of beams necessary for versatile spectroscopy applications such as femtosecond stimulated Raman spectroscopy (FSRS) and sum-frequency generation (SFG) spectroscopy.
- Femtosecond stimulated Raman spectroscopy (FSRS)
- Sum-frequency generation (SFG) spectroscopy
|Tuning range 1)||640 – 1000 nm (Signal)
1060 – 2600 nm (Idler)
|Conversion efficiency at peak||> 8% (Signal and Idler combined)|
|Pulse duration||800 fs – 3 ps|
|Spectral bandwidth||< 20 cm-1 @ 700 – 2000 nm|
|Pulse-to-pulse energy stability 2)||< 2% @ 800 nm|
- For single wavelength (515 nm) picosecond output, refer to SHBC.
- Expressed as NRMSD (normalized root mean squared deviation).
|Wavelength 1)||515 nm ± 5 nm|
|Generation efficiency 2)||> 15%|
- Direct SHBC output, not simultaneous to OPA; see details in SHBC specifications.
- Specified as percentage of pump pulse energy.
|Wavelength 1)||1030 ± 10 nm|
|Pulse duration||< 300 fs|
|Pulse energy||> 5 µJ|
- Compressed pump output.
|SH package at peak
320 – 500 nm (SHS), 530 – 640 nm (SHI)
|FH package at peak
210 – 250 nm (FHS), 265 – 320 nm (FHI)
|> 0.3% 1)|
|2400 – 4800 nm (DFG)||> 0.25% @ 3200 nm 1)|
- For > 200 µJ pump pulse energy.
For custom tuning curves visit Optics ToolBox.
Incoherent phonon population and exciton-exciton annihilation dynamics in monolayer WS2 revealed by time-resolved Resonance Raman scattering
S. Han, C. Boguschewski, Y. Gao, L. Xiao, J. Zhu, and P. H. M. van Loosdrecht, Optics Express 21 (27), 29949 (2019).
A tunable time-resolved spontaneous Raman spectroscopy setup for probing ultrafast collective excitation and quasiparticle dynamics in quantum materials
R. B. Versteeg, J. Zhu, P. Padmanabhan, C. Boguschewski, R. German, M. Goedecke, P. Becker, and P. H. M. van Loosdrecht, Structural Dynamics 4 (5), 044301 (2018).
Exciton and phonon dynamics in highly aligned 7-atom wide armchair graphene nanoribbons as seen by time-resolved spontaneous Raman scattering
J. Zhu, R. German, B. V. Senkovskiy, D. Haberer, F. R. Fischer, A. Grüneis, and P. H. M. van Loosdrecht, Nanoscale 37 (10), 17975-17982 (2018).
ORPHEUS-PS Narrow-Bandwidth Optical Parametric Amplifier
Rev. 05/01/2023. Size 174.1 KB.
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