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Published on: September 26, 2014
Broadband Nonlinear Photonics in Few-Layer Borophene.
Chunyang Ma1, Peng Yin1, Karim Khan2
1Institute of Microscale Optoelectronics, Collaborative Innovation Centre for Optoelectronic Science & Technology, International Collaborative Laboratory of 2D Materials for Optoelectronics Science and Technology of Ministry of Education, Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Physics and Optoelectronic Engineering, Shenzhen Key Laboratory of Micro-Nano Photonic Information Technology, Guangdong Laboratory of Artificial Intelligence and Digital Economy (SZ), Shenzhen University, Shenzhen, 518060, P. R. China.
Two-dimensional borophene exhibits excellent saturable absorber properties, enabling its use as a broadband optical switch for mode-locking in infrared laser systems. This material facilitates the generation of ultrashort, stable laser pulses, advancing photonic technologies.
Area of Science:
- Materials Science
- Optics and Photonics
- Nanotechnology
Background:
- Two-dimensional materials are crucial for advanced optical applications.
- Borophene, a novel 2D material, shows promise for optoelectronic devices.
- Developing efficient saturable absorbers is key for ultrafast laser systems.
Purpose of the Study:
- To synthesize and characterize 2D borophene.
- To investigate the nonlinear optical properties of borophene.
- To demonstrate borophene's application as a saturable absorber in laser mode-locking.
Main Methods:
- Liquid-phase exfoliation for borophene synthesis.
- Systematic analysis of borophene morphology and structure.
- Z-scan technique for nonlinear optical property measurement.
Main Results:
- Borophene exhibits effective saturable absorber (SA) properties.
- Borophene acts as a broadband optical switch for laser mode-locking.
- Generation of ultrastable pulses (792 fs at 1063 nm, 693 fs at 1560 nm) and stable pulses at 1878 nm.
Conclusions:
- Borophene is a highly effective saturable absorber for near- and mid-infrared lasers.
- Borophene enables the generation of ultrashort and stable laser pulses.
- Borophene holds significant potential for advancing photonic technologies.
