Article
Optics
Haodong Wu, Yaping Ruan, Zhixiang Li, Ming-Xin Dong, Miao Cai, Jiangshan Tang, Lei Tang, Han Zhang, Min Xiao, Keyu Xia
Summary: Despite the difficulty in discriminating between EIT and ATS due to their resemblance in absorption and dispersion, experimental observations have objectively distinguished their differences in terms of optical nonreciprocity, confirming the concept of using TRS as a testbed for discerning fundamental physical effects.
LASER & PHOTONICS REVIEWS
(2022)
Article
Optics
Jingxu Bai, Yuechun Jiao, Yunhui He, Rong Song, Jianming Zhao, Suotang Jia
Summary: This study demonstrates the three-photon Autler-Townes (AT) spectroscopy in a cold cesium Rydberg four-level atom and investigates the positions of AT peaks and AT splittings, as well as their dependence on the characteristics of the coupling lasers. The research finds that AT splitting γ(AB) mainly comes from the first photon coupling, while γ(BC) mainly comes from the second photon coupling. The simulated results show good agreement with the theoretical simulations considering spectral line broadening.
Article
Optics
Amy K. Robinson, Alexandra B. Artusio-Glimpse, Matthew T. Simons, Christopher L. Holloway
Summary: In this study, electromagnetically induced transparency (EIT) and Autler-Townes splitting in Rydberg rubidium atoms were investigated using a six-level excitation scheme. Experimental results for various excitation parameters were presented, along with two theoretical models capturing different aspects of the observed atomic spectra. Both the six-level model and the more complex eight-level model showed very good agreement with the experimental data.
Article
Optics
Seyyed Hossein Asadpour, Hamid Reza Hamedi, Emmanuel Paspalakis
Summary: In this paper, we propose a scheme to exchange optical vortices beyond electromagnetically induced transparency (EIT) based on four-wave mixing (FWM) in a five-level atomic system. Through numerical analysis, we find that the maximum energy conversion efficiency is obtained in the joint EIT-ATS and dual-ATS regimes. The latter is more favorable as the absorption losses vanish as the beam propagates into the atomic cloud. These results may have applications in high-efficient frequency and OAM conversion devices for quantum information processing.
Article
Optics
Michele Delvecchio, Teodora Kirova, Ennio Arimondo, Donatella Ciampini, Sandro Wimberger
Summary: This study proposes quantum control protocols for the high-fidelity preparation of target states in systems with Autler-Townes splitting. It suggests using linear, arctan, and Roland-Cerf functions for transferring population between two eigenstates of the system to achieve high fidelity for long evolution times. Additionally, it introduces an accelerated adiabatic evolution with a shortcut to adiabaticity protocol to overcome the restriction of experimental setup lifetimes.
Article
Optics
Donggyu B. Sohn, Ogulcan E. Orsel, Gaurav Bahl
Summary: Optical isolators based on magneto-optic principles have limitations in integration with photonic circuits, but a non-magnetic alternative utilizing phonon-mediated photonic Autler-Townes splitting shows promise in achieving ultralow insertion loss and high contrast on-chip.
Article
Materials Science, Multidisciplinary
Richard Porter, Kim Pham, Agnes Maurel
Summary: This study investigates the acoustic wave propagation in a waveguide with two resonant side-branch channels. The impact of the channels is reduced to jump conditions across the junction in one-dimensional models. When the separation distance is on the scale of the wavelength, out-of-phase interferences between the two junctions lead to acoustically induced transparency. On the other hand, when the separation distance is subwavelength, the evanescent field coupling the two channels accounts for perfect transmission due to Autler-Townes splitting.
Article
Optics
Xiaoxia Wu, Zengqiang Yang, Shaofeng Zhang, Xinwen Ma, Jie Liu, Difa Ye
Summary: This study presents a compact formula to quantify the buildup time of Autler-Townes splitting, which is crucial for understanding multiple timescales of the laser-atom system. This scaling law applies not only to singly excited states, but also to complex doubly excited states, and may have potential applications in calibrating zero delay in transient absorption spectroscopy.
Article
Optics
L. Yu Nad'kin, O. Korovai, D. A. Markov
Summary: The influence of two-photon processes on absorption in a system of excitons and biexcitons under two-pulse interaction reveals the asymmetric Autler-Townes effect. It is possible to control the absorption spectrum by adjusting field intensities and resonance detunings of the incident radiation.
OPTICS AND SPECTROSCOPY
(2021)
Article
Physics, Multidisciplinary
Wei Zhao, Yan Zhang, Zhihai Wang
Summary: The nonlocal emitter-waveguide coupling, leading to the creation of the giant atom, represents a new paradigm in the field of quantum optics and waveguide QED. By adjusting the size of the giant atom, the transmission and resonance properties of photons can be dynamically controlled. This research is of great significance for constructing quantum networks based on giant atoms and achieving photon or phonon control.
FRONTIERS OF PHYSICS
(2022)
Article
Multidisciplinary Sciences
Go Yumoto, Hideki Hirori, Fumiya Sekiguchi, Ryota Sato, Masaki Saruyama, Toshiharu Teranishi, Yoshihiko Kanemitsu
Summary: By utilizing the multiband structure induced by strong spin-orbit coupling in lead halide perovskites, researchers have demonstrated an anomalous enhancement of exciton energy shift at room temperature. This enhancement at room temperature allows for efficient coherent optical manipulation of excitons utilizing energy states with large spin-orbit splitting, potentially opening up new possibilities for quantum state engineering and ultrafast optical modulation.
NATURE COMMUNICATIONS
(2021)
Article
Optics
Tongyu Nie, Yongpan Gao, Ying Yang, Chao Wang, Daquan Yang, Huiping Tian
Summary: This paper quantitatively distinguishes electromagnetically induced transparency (EIT) and Autler-Townes splitting (ATS) in a photonic crystal nanobeam cavity (PCNC)-waveguide coupled system using Akaike's information criterion (AIC). The study explores the factors affecting the weights by varying the distance between the PCNC and the waveguide. The research shows great potential in precisely and quantitatively evaluating the interference of fields in future optical on-chip integration design.
JOURNAL OF MODERN OPTICS
(2022)
Article
Optics
Abhay Mishra, B. N. Jagatap
Summary: In this study, we use a biorthogonal basis consisting of the right' and left' eigenvectors of the effective non-Hermitian Hamiltonian to resolve the probe absorption spectrum into components corresponding to the decaying dressed states of a three-level lambda system. By analyzing the symmetry properties of a combination of these components and defining an internal parameter, we can distinguish between electromagnetically induced transparency (EIT) and Autler-Townes (AT) splitting objectively and determine the threshold for transition between them.
JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS
(2022)
Article
Optics
Fei Zhou, Feng-Dong Jia, Jiong Mei, Xiu-Bin Liu, Huai-Yu Zhang, Yong-Hong Yu, Wei-Chen Liang, Jian-Wei Qin, Jian Zhang, Feng Xie, Zhi-Ping Zhong
Summary: In this study, we systematically investigated the influence of gas temperature, Rabi frequencies of the probe laser, the coupling laser, and the radio-frequency on Rydberg electromagnetically induced transparency and Autler-Townes splitting. By defining a general Doppler mismatch factor, we found the appropriate parameter range for accurate measurement in Rydberg atom-based microwave electrometry.
JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS
(2022)
Article
Physics, Multidisciplinary
Liting Wu, Wenkang Cao, Haolin Jiang
Summary: An optical transparency can be achieved by using a single magneto-optical ring resonator, where the applied magnetic field can control the transparency window. This effect is analogous to Autler-Townes splitting, with the magnetic field acting as a strong external pump field.
Article
Physics, Multidisciplinary
Wenjun Shao, Xun-Li Feng, Jian Li, Liang-Liang Wang
Summary: We investigate multiphoton resonance and multi-ion excitation in a single-mode cavity with identical vibrating ion qubits, allowing for tripartite interaction between the ions' internal states, the cavity mode, and the ions' vibrational motion. By tuning the vibration mode, the effective coupling energy between ions and photons can be manipulated. The proposed system demonstrates Rabi oscillation behaviors and serves as a versatile platform for exploring entangled multiqubit physics.
PHYSICAL REVIEW RESEARCH
(2023)
Article
Optics
Liang-Liang Wang, Wenjun Shao, Qing Sun, Jian Li
Summary: We investigate a fermionic superfluid with Raman-induced spin-orbit coupling immersed in a Bose-Einstein condensate. By minimizing the total free energy, we find that, with moderate repulsive interspecies interaction, a phase separation occurs where the otherwise nontopological uniform phase is divided into two parts: a purely fermionic one and a Bose-Fermi mix characterized by nontrivial topology with the winding number W = 1. We verify that Majorana zero modes emerge at the phase interfaces by numerical simulations of the coupled Bogoliubov-de Gennes and Gross-Pitaevskii equations in real space. The tunability of the phase interfaces enables a direct manipulation of the predicted Majorana zero modes.
Article
Optics
Wenjun Shao, Chunfeng Wu, Xun-Li Feng