• Title/Summary/Keyword: Applied

Search Result 140,001, Processing Time 0.158 seconds

Excimer Laser-induced Crystallization of Si Films for Manufacturing LTPS TFT-based Displays

  • Chung, U.J.;Limanov, A.B.;Wilt, P.C. Van Der;Chitu, A.M.;Im, James S.
    • 한국정보디스플레이학회:학술대회논문집
    • /
    • 2007.08a
    • /
    • pp.7-7
    • /
    • 2007

  • Laser-irradiation-induced crystallization of as-deposited amorphous precursor films constitutes an integral step in fabricating LTPS TFTs. Consideration of various factors leads one to conclude that, for display manufacturers, choosing how to crystallize the films can be identified as being tactically and strategically significant. This paper will begin by reviewing the fundamental aspects of laser crystallization, and then present noteworthy advances and progress, which have recently been accomplished in the field. In particular, we will focus on communicating the evolving status associated with the sequential lateral solidification (SLS) method, which can be presently identified as the most strategically enabling crystallization method.

  • PDF

3.2-kW 9.7-GHz Polarization-maintaining Narrow-linewidth All-fiber Amplifier

  • Hang Liu;Yujun Feng;Xiaobo Yang;Yao Wang;Hongming Yu;Jue Wang;Wanjing Peng;Yanshan Wang;Yinhong Sun;Yi Ma;Qingsong Gao;Chun Tang
    • Current Optics and Photonics
    • /
    • v.8 no.1
    • /
    • pp.65-71
    • /
    • 2024

  • We present a Yb-doped narrow-linewidth polarization-maintaining all-fiber amplifier that achieves a high mode-instability (MI) threshold, high output power, and 9.7-GHz spectral linewidth. Six wavelength-multiplexed laser diodes are used to pump this amplifier. First, we construct a high-power fiber amplifier based on a master oscillator-power amplifier configuration for experiments. Subsequently, we examine the MI threshold by individually pumping the amplifier with wavelengths of 976, 974, 981, 974, and 981 nm respectively. The experimental results demonstrate that the amplifier exhibits a high MI threshold (>3.5 kW) when pumped with a combination of wavelengths at 974 and 981 nm. Afterward, we inject an optimized phase-modulated seed with a nearly flat-top spectrum into this amplifier. Ultimately, laser output of 3.2 kW and 9.7 GHz are obtained.

  • https://doi.org/10.3807/COPP.2024.8.1.65 인용 PDF