Exciton Lasing in ZnO-ZnCr2O4 Nanowalls

Tejendra Dixit, Jitesh Agrawal, Miryala Muralidhar, Masato Murakami, Kolla Lakshmi Ganapathi, Vipul Singh, M. S.Ramachandra Rao

研究成果: Article


We demonstrate low power continuous wave, red and NIR exciton lasing with FWHM of 1 nm, quality factor of 680 and threshold power of 100 μW in ZnO-ZnCr2O4 nanowalls. The NIR lasing was enabled by integrating ZnO with ZnCr2O4. Moreover, wavelength selective photoluminescence (tuning from UV to NIR) and enhanced two-photon emission were also observed in ZnO-ZnCr2O4 nanowalls. The exciton-exciton scattering can be attributed to the observation of exciton lasing at low temperature (<200 K). A plausible mechanism has been elucidated in order to explain the results. This work will open new opportunities in the advancement of oxide semiconductors based exciton lasers.

ジャーナルIEEE Photonics Journal
出版物ステータスPublished - 2019 12

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Electrical and Electronic Engineering

フィンガープリント Exciton Lasing in ZnO-ZnCr<sub>2</sub>O<sub>4</sub> Nanowalls' の研究トピックを掘り下げます。これらはともに一意のフィンガープリントを構成します。

  • これを引用

    Dixit, T., Agrawal, J., Muralidhar, M., Murakami, M., Ganapathi, K. L., Singh, V., & Rao, M. S. R. (2019). Exciton Lasing in ZnO-ZnCr2O4 Nanowalls. IEEE Photonics Journal, 11(6), [8854157]. https://doi.org/10.1109/JPHOT.2019.2945010