The Japan Society of Applied Physics

[PS-11-20 (Late News)] Optical Property Enhancement through Alloying in High-Speed CWLA-Grown n-type Ge-based MaterialsThe Construction of 4-D FMCW LiDAR Images by Directly Using Self-Heterodyne Beating Signal at Baseband and Linearization of Wavelength Sweeping Lasers

Rahmat Hadi Saputro1,2, Ryo Matsumura1, Tatsuro Maeda3, Naoki Fukata1,2Yu-Xiang Lin1, Zohauddin Ahmad2, Huan-Bin Yang2, Ke-En Liao2, You-Chia Chang3, Chia-Chien Wei1, Jin-Wei Shi2 (1. NIMS (Japan), 2. Univ. of Tsukuba (Japan), 3. AIST (Japan)1.National Sun Yat-sen University (Taiwan), 2. National Central University (Taiwan), 3. National Yang Ming Chiao Tung University (Taiwan))

https://doi.org/10.7567/SSDM.2023.PS-11-20

The optical activity of n-type Ge grown by high-speed continuous wave laser annealing (CWLA) was previously demonstrated. Here, we reported the further improve-ment of PL intensity through alloying the n-Ge films with Si or Sn in CWLA process. The alloying with Si signifi-cantly enhanced PL intensity at about 3 times higher than n-type Ge without alloying.