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Optics
Huanqing Chen, Junchao Li, Guo Yu, Hua Zong, Rui Lang, Menglai Lei, Shukun Li, Muhammad Saddique Akbar Khan, Yue Yang, Tiantian Wei, Hui Liao, Linghai Meng, Peijun Wen, Xiaodong Hu
Summary: Room-temperature polariton lasing is achieved in GaN microrods grown by metalorganic vapor phase epitaxy. A large Rabi splitting is demonstrated, distinguishing the coherent light emission from conventional photon lasing. This has potential applications in integrated optical circuits and the study of exciting phenomena in macroscopic quantum states.
Article
Chemistry, Physical
Qiuyang Li, Lucas Huber, Colin Nuckolls, Xiaoyang Zhu
Summary: This study investigates spin-polarized charge separation in a MoSe2/WSe2 heterobilayer with resonant excitation of valley-specific exciton transition. The results show that spin polarization can persist on a 10 ps time scale across the MoSe2/WSe2 interface under the excitation of valley-specific transitions.
JOURNAL OF PHYSICAL CHEMISTRY C
(2022)
Article
Chemistry, Multidisciplinary
Jia-Shiang Chen, Anushka Dasgupta, Darien J. Morrow, Ruggero Emmanuele, Tobin J. Marks, Mark C. Hersam, Xuedan Ma
Summary: Miniaturized near-infrared semiconductor lasers have widespread applications in various fields. By optimizing the cavity-emitter integration scheme, researchers have successfully demonstrated an excitonic laser based on semiconducting single-walled carbon nanotubes, offering stable and tunable operation at room temperature.
Article
Chemistry, Multidisciplinary
Qian Liang, Xuekai Ma, Teng Long, Jiannian Yao, Qing Liao, Hongbing Fu
Summary: We demonstrate an organic circularly polarized (CP) laser from a pure organic crystal-filled microcavity without any chiral molecules or chiral structures. The giant anisotropy and excellent laser gain of organic crystals can induce the optical Rashba-Dresselhaus spin-orbit coupling effect, which is conductive to the CP laser in such microcavities. The maximum dissymmetry factor of the CP lasing with opposite helicities reaches 1.2. Our strategy may provide a new idea for the design of CP lasers towards future 3D laser displays, information storage, and other fields.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Physical
Zhifeng Shi, Fei Zhang, Jingjing Yan, Yuan Zhang, Xu Chen, Shu Chen, Di Wu, Xinjian Li, Yu Zhang, Chongxin Shan
Summary: This study demonstrates the realization of multi-photon-pumped lasing based on metal-halide perovskites, which can operate stably at high temperatures and exhibit a highly temperature-insensitive gain threshold.
Article
Chemistry, Multidisciplinary
Jianbo De, Xuekai Ma, Fan Yin, Jiahuan Ren, Jiannian Yao, Stefan Schumacher, Qing Liao, Hongbing Fu, Guillaume Malpuech, Dmitry Solnyshkov
Summary: This research demonstrates a sub-nanosecond electrical field-enhanced polariton condensate switch at room temperature by applying an electric field to a microcavity filled with an organic microbelt. This provides the basis for developing an on-chip integrated photonic device in the strong light-matter coupling regime.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2023)
Editorial Material
Nanoscience & Nanotechnology
Xuedong Hu
Summary: Electric field gradient can control spin qubits in silicon quantum dots, enabling switchable fast single-qubit gates and potentially scalability.
NATURE NANOTECHNOLOGY
(2023)
Article
Physics, Multidisciplinary
Ke Yang, Yue-De Yang, Jin-Long Xiao, Yong-Zhen Huang
Summary: This research demonstrates the manipulation of mode quality and lasing characteristics in coupled twin circular-side-octagon microcavity (TCOM) lasers by controlling their curvature. The numerical simulation results show that the mode Q factors, wavelength intervals of different transverse modes, and mode numbers for four-bounce modes can be manipulated through different deformations. Single-mode lasing for global modes with suppressed four-bounce modes is achieved by pumping both microcavities simultaneously. The results highlight the efficient manipulation of lasing modes in TCOM lasers, which can contribute to practical applications of microcavity lasers.
Article
Optics
Xinhui Lan, Xiuqi Shi, Lan Zhang, Qianqian Guo, Zhen Zou, Guangpeng Zhu, Xiang Li, Wei Du, Tao Wang
Summary: In this study, highly polarized light emission from colloidal semiconductor quantum dots (QDs) was achieved by embedding a monolayer of QDs inside anisotropic plasmonic nanocavities. The average degree of polarization (DoP) was 0.89. The anisotropic emission behavior was attributed to the coupling between the QDs and the confined and polarization-dependent gap-plasmons in the nanocavities. These findings open up new opportunities for the design of polarized QD-based display devices.
Article
Chemistry, Multidisciplinary
Pengfei Guo, Qian Yang, Xia Shen, Qihang Lv, Yuying Hao, Liantuan Xiao, Johnny C. Ho, Kin Man Yu
Summary: This article reports on the demonstration of broadband-tunable, single-mode nanolasers based on high-quality alloyed single crystalline CdS1-xSex (x = 0-1) nanotripods. The article shows that these nanolasers have tunable emissions, single-mode lasing, and high-quality factors. The study also reveals the capability of CdS1-xSex alloys to have tunable bandgaps and successfully constructs a wavelength continuously tunable nanolaser.
Article
Materials Science, Multidisciplinary
S. Molatta, D. Opherden, J. Wosnitza, L. Opherden, Z. T. Zhang, T. Wolf, H. Loehneysen, R. Sarkar, P. K. Biswas, H-J Grafe, H. Kuehne
Summary: Recent experiments show that FeSe provides the possibility to study bulk superconductivity in the crossover regime between BCS and BEC. The research found a distinct state with large spin polarization in FeSe under strong magnetic fields along the c axis, indicating a high spatial homogeneity of the bulk superconducting state. Despite pronounced spin fluctuations, FeSe exhibits an unusual field-induced superconducting state in the BCS-BEC crossover regime.
Article
Nanoscience & Nanotechnology
Yaqi Wang, Huying Zheng, Ziying Tang, Runchen Wang, Xin Luo, Yan Shen, Xun Yang, Kai-Kai Liu, Shuangpeng Wang, Shaozhi Deng, Chong-Xin Shan, Hai Zhu
Summary: In this study, we report a chiral polariton laser achieved through spin-polarization of polariton condensation at room temperature. The chiral behavior of the microcavity breaks spatial inversion symmetry and lifts the energy degeneracy of polariton spin doublets by 11 meV. The polariton laser exhibits stable right-circular polarization due to bosonic condensation occurring only in low-energy spin-up polaritons.
Article
Physics, Condensed Matter
M. Shakil, Halima Sadia, I. Zeba, S. S. A. Gillani, Shabbir Ahmad, M. Zafar
Summary: This study investigated a quaternary Heusler alloy CoYVSn using DFT, revealing the most stable structural and magnetic phases. The alloy's stability, thermal stability, and high Curie temperature suitability for spintronics applications were confirmed.
SOLID STATE COMMUNICATIONS
(2021)
Article
Physics, Multidisciplinary
M. Wurdack, E. Estrecho, S. Todd, C. Schneider, A. G. Truscott, E. A. Ostrovskaya
Summary: This study demonstrates the trapping and manipulation of polaritons at room temperature in an optical microcavity by enhancing the interactions between materials. It has significant implications for polariton-based optoelectronics in the field of electronics.
PHYSICAL REVIEW LETTERS
(2022)
Article
Chemistry, Multidisciplinary
Marco Dusel, Simon Betzold, Tristan H. Harder, Monika Emmerling, Johannes Beierlein, Juergen Ohmer, Utz Fischer, Ronny Thomale, Christian Schneider, Sven Hofling, Sebastian Klembt
Summary: This study demonstrates exciton-polariton lasing for topological defects at room temperature, using red fluorescent protein and a patterned mirror cavity. The results pave the way for exploring interacting boson many-body physics under ambient conditions.
Article
Physics, Applied
Yanhao Tang, Wei Xie, Krishna C. Mandal, John A. McGuire, Chih Wei Lai
JOURNAL OF APPLIED PHYSICS
(2015)
Article
Materials Science, Multidisciplinary
Yanhao Tang, Wei Xie, Krishna C. Mandal, John A. McGuire, C. W. Lai
Article
Multidisciplinary Sciences
Feng-Kuo Hsu, Wei Xie, Yi-Shan Lee, Sheng-Di Lin, Chih Wei Lai
SCIENTIFIC REPORTS
(2015)
Article
Physics, Applied
Yanhao Tang, Wei Xie, Krishna C. Mandal, John A. McGuire, Chih Wei Lai
PHYSICAL REVIEW APPLIED
(2015)
Article
Optics
Chih Wei Lai, Mark Schwab, Steven C. Hill, Joshua Santarpia, Yong-Le Pan
Article
Physics, Multidisciplinary
S. Utsunomiya, L. Tian, G. Roumpos, C. W. Lai, N. Kumada, T. Fujisawa, M. Kuwata-Gonokami, A. Loeffler, S. Hoefling, A. Forchel, Y. Yamamoto
Article
Optics
Feng-Kuo Hsu, Chih-Wei Lai
Article
Physics, Condensed Matter
Na Young Kim, Chih-Wei Lai, Shoko Utsunomiya, Georgios Roumpos, Michael Fraser, Hui Deng, Tim Byrnes, Patrik Recher, Norio Kumada, Toshimasa Fujisawa, Yoshihisa Yamamoto
PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS
(2008)
Article
Materials Science, Multidisciplinary
Georgios Roumpos, Chih-Wei Lai, T. C. H. Liew, Yuri G. Rubo, A. V. Kavokin, Yoshihisa Yamamoto
Article
Multidisciplinary Sciences
Dat T. Do, Subhendra D. Mahanti, Chih Wei Lai
SCIENTIFIC REPORTS
(2015)
Article
Materials Science, Multidisciplinary
Yanhao Tang, Krishna C. Mandal, John A. McGuire, Chih Wei Lai
Article
Multidisciplinary Sciences
C. W. Lai, N. Y. Kim, S. Utsunomiya, G. Roumpos, H. Deng, M. D. Fraser, T. Byrnes, P. Recher, N. Kumada, T. Fujisawa, Y. Yamamoto
Article
Physics, Condensed Matter
L. Mouchliadis, C. W. Lai, A. L. Ivanov
SUPERLATTICES AND MICROSTRUCTURES
(2007)
Article
Materials Science, Multidisciplinary
P. Maletinsky, C. W. Lai, A. Badolato, A. Imamoglu