scholarly journals Broadband electrically controlled bismuth nanofilm THz modulator

APL Photonics ◽  
2021 ◽  
Vol 6 (5) ◽  
pp. 056103
Author(s):  
Qi Song ◽  
Hao Chen ◽  
Min Zhang ◽  
Ling Li ◽  
Junbo Yang ◽  
...  
Keyword(s):  
Thz Modulator

Ultrasensitive and Broadband All‐Optically Controlled THz Modulator Based on MoTe 2 /Si van der Waals Heterostructure

2020 ◽  
Vol 8 (17) ◽  
pp. 2000160 ◽  
Author(s):  
Jie Qiao ◽  
Shanpeng Wang ◽  
Ziming Wang ◽  
Chuan He ◽  
Shuqi Zhao ◽  
...  
Keyword(s):  
Van Der Waals ◽  
Van Der Waals Heterostructure ◽  
Thz Modulator

scholarly journals Broadband and high modulation-depth THz modulator using low bias controlled VO_2-integrated metasurface

2017 ◽  
Vol 25 (15) ◽  
pp. 17322 ◽  
Author(s):  
Gaochao Zhou ◽  
Penghui Dai ◽  
Jingbo Wu ◽  
Biaobing Jin ◽  
Qiye Wen ◽  
...  
Keyword(s):  
Modulation Depth ◽  
High Modulation ◽  
Thz Modulator

scholarly journals Choice of Polymer Matrix for a Fast Switchable III-V Nanowire Terahertz Modulator

MRS Advances ◽  
2017 ◽  
Vol 2 (28) ◽  
pp. 1475-1480 ◽  
Author(s):  
Sarwat A. Baig ◽  
Jessica L. Boland ◽  
Djamshid A. Damry ◽  
Hoe H Tan ◽  
Chennupati Jagadish ◽  
...  
Keyword(s):  
Polymer Matrix ◽  
Modulation Depth ◽  
Areal Density ◽  
Thz Radiation ◽  
Switching Speed ◽  
Parylene C ◽  
Optical Pump ◽  
High Modulation ◽  
Thz Modulator ◽  
Probe Spectroscopy

ABSTRACTProgress in ultrafast terahertz (THz) communications has been limited due to the lack of picosecond switchable modulators with sufficient modulation depth. Gallium arsenide nanowires are ideal candidates for THz modulators as they absorb THz radiation, only when photoexcited – giving the potential for picosecend speed switching and high modulation depth. By embedding the nanowires in a polymer matrix and laminating together several nanowire–polymer films, we increase the areal density of nanowires, resulting in greater modulation of THz radiation. In this paper, we compare PDMS and Parylene C polymers for nanowire encapsulation and show that a high modulation depth is possible using Parylene C due to its thinness and its ability to be laminated. We characterize the modulator behavior and switching speed using optical pump–THz probe spectroscopy, and demonstrate a parylene–nanowire THz modulator with 13.5% modulation depth and 1ps switching speed.

Fast THz Modulator based on the stagger-netlike GaN HEMT active metamaterial

2017 ◽  
Author(s):  
Yuncheng Zhao ◽  
Yaxin Zhang ◽  
Shixiong Liang ◽  
Zhihong Feng ◽  
Ziqiang Yang
Keyword(s):  
Gan Hemt ◽  
Thz Modulator

High-efficiency THz modulator based on phthalocyanine-compound organic films

2015 ◽  
Vol 106 (5) ◽  
pp. 053303 ◽  
Author(s):  
Ting He ◽  
Bo Zhang ◽  
Jingling Shen ◽  
Mengdi Zang ◽  
Tianji Chen ◽  
...  
Keyword(s):  
High Efficiency ◽  
Organic Films ◽  
Thz Modulator
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