Journal
LASER & PHOTONICS REVIEWS
Volume 15, Issue 9, Pages -Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/lpor.202000455
Keywords
device applications; glass; structure modifications; thermal accumulation effect; ultrafast laser direct writing
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Funding
- National Natural Science Foundation of China [U20A20211, 51902286, 61775192, 61905215, 51772270]
- State Key Laboratory of High Field Laser Physics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences
- Fundamental Research Funds for the Central Universities
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This review explores the use of ultrafast laser direct writing in inducing physical phenomena and functional structures in glass, as well as the significance of tuning local thermal accumulation for structure modifications and device performance enhancement.
Ultrafast laser direct writing (ULDW) is explored as a facile technique to induce unprecedented physical phenomena and functional structures three dimensionally in glass. The rapid prototyping and compatibility with a diversity of materials offer solutions to requirements for various applications and new emerging platforms in photonic circuits and networks, quantum platform, optical storage, nonlinear optics, and integrated multifunctional photonic chips. In this review, tuning the local thermal accumulation in the ULDW is demonstrated to provide a unique opportunity to induce a series of physical phenomena and produce structure modifications in glass beyond ULDW with negligible thermal accumulation. The device performance and fabrication efficiency are also improvable with adjusting local thermal accumulation. The principles of thermal ULDW, the generated structures and their applications are reviewed. This paper also gives an outlook to the basic challenges of thermal ULDW, and the important and promising directions for the future research.
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