Wavelength-tunable few-cycle pulses in visible region generated through soliton-plasma interactions

• DOI: 10.1364/oe.26.034977
• Publication Date: 2018-12-21T20:36:45Z
• Authors: Zhiyuan Huang; Ding Wang; Yifei Chen; Ruirui Zhao; Yu Zhao; Sungmo Nam; Changhwan Lim; Yujie Peng; Juan Du; Yuxin Leng
• Keywords: Zero-dispersion wavelength; Cladding (metalworking); Pulse compression

We numerically investigate the generation of wavelength-tunable few-cycle pulses in visible spectral region through soliton-plasma interactions. found that a He-filled single-ring photonic crystal fiber (SR-PCF), interactions could shift optical spectra propagating to shorter wavelengths. Through adjusting single pulse energy launched into fiber, central wavelength these blueshifting be continuously tuned over hundreds nanometers, while maintaining high conversion efficiency >57%. Moreover, we observed during nonlinear propagation SR-PCF, soliton self-compression effects enhanced plasma density at energies, which modulate phase-matching condition ultraviolet (UV) dispersive wave (DW) generation. Furthermore, employed recently-developed model study loss and dispersion SR-PCF its resonant anti-resonant regions, demonstrated remarkable influence core-cladding resonance on process The numerical results here pave way develop wavelength-tunable, light sources region, may have considerable application potential pump-probe spectroscopy strong-field physics.