Ben Niu
Current Organizations / Institutes
The organizations/institutes from the scholar's latest article
Research Subjects
Research Interests
Ben Niu has a total of 5 co-authors. Here are the top co-authors by number of shared publications:
- Dan Guo
Faculty of Physics and Optoelectronic Engineering, Beijing University of Technology , Beijing 100124
1 shared publication - Kun Ge
College of Physics and Optoelectronics, Faculty of Science, Beijing University of Technology, Beijing 100124, China
1 shared publication - Tianrui Zhai
School of Physics and Optoelectronic Engineering Beijing University of Technology Beijing People's Republic of China
1 shared publication - Xiaoyu Shi
School of Physics and Optoelectronic Engineering Beijing University of Technology Beijing China
1 shared publication - Zhiyang Xu
Faculty of Science, College of Physics and Optoelectronics, Beijing University of Technology, Beijing 100124, China
1 shared publication
Latest Publications
- Open Access
Laser Diode Pumped Polymer Lasers with Tunable Emission Based on Microfluidic Channels
Tunable whispering-gallery-mode (WGM) lasers have been paid lots of attention for their potential applications in the photonic field. Here, a tunable polymer WGM laser based on laser diode pumping is realized with a threshold of 0.43 MW/cm2 per pulse. The WGM laser is realized by a microfluidic microcavity, which consists of a quartz capillary and gain materials. The laser performance keeps stable for a long time (3.5 h), pumped by a 50-ns 50 Hz laser diode with a pumping peak power density of 1.08 MW/cm2 per pulse. The lasing wavelength can be tuned over 15 nm by changing the gain material concentration from 3.5 mg/mL to 12.5 mg/mL in the microfluidic channel. Moreover, the lasing mode can be switched between transverse magnetic (TM) and transverse electric (TE) modes by adjusting the pump polarization. These results provide the basis for designing nanophotonic devices with laser diode pumping.
Open AccessLaser Diode Pumped Polymer Lasers with Tunable Emission Based on Microfluidic Channels
Tunable whispering-gallery-mode (WGM) lasers have been paid lots of attention for their potential applications in the photonic field. Here, a tunable polymer WGM laser based on laser diode pumping is realized with a threshold of 0.43 MW/cm2 per pulse. The WGM laser is realized by a microfluidic microcavity, which consists of a quartz capillary and gain materials. The laser performance keeps stable for a long time (3.5 h), pumped by a 50-ns 50 Hz laser diode with a pumping peak power density of 1.08 MW/cm2 per pulse. The lasing wavelength can be tuned over 15 nm by changing the gain material concentration from 3.5 mg/mL to 12.5 mg/mL in the microfluidic channel. Moreover, the lasing mode can be switched between transverse magnetic (TM) and transverse electric (TE) modes by adjusting the pump polarization. These results provide the basis for designing nanophotonic devices with laser diode pumping.