Optimizing spectral phase transfer in four-wave mixing with gas-filled capillaries
- Univ. of California, Los Angeles, CA (United States); SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States); Stanford Univ., CA (United States)
- Univ. of California, Los Angeles, CA (United States)
- Stanford Univ., CA (United States)
- Heriot-Watt Univ., Edinburgh (United Kingdom)
- Univ. of California, Los Angeles, CA (United States); Stanford Univ., CA (United States)
Four-wave mixing (FWM) in gas-filled hollow-core capillaries, a nonlinear optical process that mixes signal and pump photon frequencies to generate idler frequency photons, offers a method for precise spectral phase transfer from signal to idler at ultrashort timescales and extreme powers. However, this regime is challenged by competing linear and nonlinear dynamics, leading to significant trade-offs between spectral phase transfer and conversion efficiency. Our computational investigation focuses on the upconversion of femtosecond pulses from the infrared (IR) to the ultraviolet (UV), a range notoriously difficult to manipulate. We explore an intermediate energy regime that strikes an optimal balance between FWM-mediated phase-transfer fidelity and nonlinear conversion efficiency. By adjusting the energy ratios and spectral phase profiles of the input signal, we achieve conversion efficiencies of approximately 5-15% while maintaining an effective quasi-linear spectral phase transfer. These findings will contribute to establishing first-principles and scaling laws essential for applications such as high-precision imaging, spectroscopy, quantum transduction, and distributed entangled interconnects, facilitating advanced control of ultrafast photonic and electronic wavepackets in quantum materials with unprecedented spatial and temporal precision.
- Research Organization:
- SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States)
- Sponsoring Organization:
- National Science Foundation (NSF); Royal Academy of Engineering (RAENG); USDOE; USDOE Office of Science (SC), Basic Energy Sciences (BES)
- Grant/Contract Number:
- AC02-76SF00515; SC0022559
- OSTI ID:
- 2478297
- Journal Information:
- Optics Express, Journal Name: Optics Express Journal Issue: 25 Vol. 32; ISSN 1094-4087
- Publisher:
- Optica Publishing GroupCopyright Statement
- Country of Publication:
- United States
- Language:
- English
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