2D patch antenna array on a double metal quantum cascade laser with >90% coupling to a Gaussian beam and selectable facet transparency at 19  THz

2016 ◽  
Vol 41 (19) ◽  
pp. 4590 ◽  
Author(s):  
Matthias Justen ◽  
Christopher Bonzon ◽  
Keita Ohtani ◽  
Mathias Beck ◽  
Urs Graf ◽  
...  
Keyword(s):  
Gaussian Beam ◽  
Antenna Array ◽  
Quantum Cascade Laser ◽  
Patch Antenna ◽  
Quantum Cascade

Terahertz Quantum Cascade Laser Based on Non-uniform Dipole Antenna Array

2021 ◽  
Author(s):  
Hongzou Bai ◽  
Gaolei Chang ◽  
Huan Zhu ◽  
Kai Wang ◽  
Gangyi Xu ◽  
...  
Keyword(s):  
Antenna Array ◽  
Quantum Cascade Laser ◽  
Dipole Antenna ◽  
Quantum Cascade

Passive and Active Verification of Serial-Fed Patch Antenna Array for 77 GHz Automotive Corner Radar

2020 ◽  
Author(s):  
Wogong Zhang ◽  
Nannan Li ◽  
Ziyang Zheng ◽  
Liyun Shi ◽  
Zhiyong Li ◽  
...  
Keyword(s):  
Antenna Array ◽  
Patch Antenna ◽  
77 Ghz

scholarly journals Microwave Wireless Power Transfer System Based on a Frequency Reconfigurable Microstrip Patch Antenna Array

Energies ◽  
2021 ◽  
Vol 14 (2) ◽  
pp. 415
Author(s):  
Haiyue Wang ◽  
Lianwen Deng ◽  
Heng Luo ◽  
Junsa Du ◽  
Daohan Zhou ◽  
...  
Keyword(s):  
Resonant Frequency ◽  
Antenna Array ◽  
Patch Antenna ◽  
Wireless Power Transfer ◽  
Microstrip Patch Antenna ◽  
Market Demand ◽  
Power Transfer ◽  
Wireless Power ◽  
Microstrip Patch ◽  
Wide Range

The microwave wireless power transfer (MWPT) technology has found a variety of applications in consumer electronics, medical implants and sensor networks. Here, instead of a magnetic resonant coupling wireless power transfer (MRCWPT) system, a novel MWPT system based on a frequency reconfigurable (covering the S-band and C-band) microstrip patch antenna array is proposed for the first time. By switching the bias voltage-dependent capacitance value of the varactor diode between the larger main microstrip patch and the smaller side microstrip patch, the working frequency band of the MWPT system can be switched between the S-band and the C-band. Specifically, the operated frequencies of the antenna array vary continuously within a wide range from 3.41 to 3.96 GHz and 5.7 to 6.3 GHz. For the adjustable range of frequencies, the return loss of the antenna array is less than −15 dB at the resonant frequency. The gain of the frequency reconfigurable antenna array is above 6 dBi at different working frequencies. Simulation results verified by experimental results have shown that power transfer efficiency (PTE) of the MWPT system stays above 20% at different frequencies. Also, when the antenna array works at the resonant frequency of 3.64 GHz, the PTE of the MWPT system is 25%, 20.5%, and 10.3% at the distances of 20 mm, 40 mm, and 80 mm, respectively. The MWPT system can be used to power the receiver at different frequencies, which has great application prospects and market demand opportunities.

scholarly journals High-speed operation of single-mode tunable quantum cascade laser based on ultra-short resonant cavity

AIP Advances ◽  
2021 ◽  
Vol 11 (1) ◽  
pp. 015325
Author(s):  
Yuhong Zhou ◽  
Junqi Liu ◽  
Shenqiang Zhai ◽  
Ning Zhuo ◽  
Jinchuan Zhang ◽  
...  
Keyword(s):  
Quantum Cascade Laser ◽  
High Speed ◽  
Resonant Cavity ◽  
Single Mode ◽  
Quantum Cascade

A quantum cascade laser setup for studying irreversible photoreactions in H2O with nanosecond resolution and microlitre consumption

2020 ◽  
Vol 22 (45) ◽  
pp. 26459-26467
Author(s):  
Jessica L. Klocke ◽  
Tilman Kottke
Keyword(s):  
Infrared Spectroscopy ◽  
Quantum Cascade Laser ◽  
Time Resolved ◽  
Quantum Cascade ◽  
Time Resolved Infrared Spectroscopy ◽  
Laser Setup

Flavin photoreduction in H2O is elucidated by developing a quantum cascade laser setup for time-resolved infrared spectroscopy on irreversible reactions.

Sign in / Sign up

Export Citation Format

Share Document