Article
Nanoscience & Nanotechnology
Rashid A. Ganeev, V. S. Popov, A. Zvyagin, N. A. Lavrentyev, A. E. Mirofyanchenko, E. Mirofyanchenko, I. A. Shuklov, O. Ovchinnikov, V. P. Ponomarenko, V. F. Razumov
Summary: Bismuth telluride nanoparticles exhibit nonlinear optical properties including saturable absorption and positive nonlinear refraction. Stronger excitation leads to reverse saturable absorption dominating over other nonlinear optical processes. In thin films containing these nanoparticles, significant growth of the nonlinear optical parameters is achieved compared to colloidal Bi2Te3 NPs.
Article
Chemistry, Multidisciplinary
Hui Li, Saiyi Chen, Danil W. Boukhvalov, Zhiyang Yu, Mark G. Humphrey, Zhipeng Huang, Chi Zhang
Summary: This study explores the modulation of nonlinear optical (NLO) properties of MXenes (Ti3C2Tx) through surface terminations. The results show that changing the surface terminations leads to variation in the effective NLO absorption coefficient and different saturable absorption and reverse saturable absorption behaviors.
Article
Chemistry, Physical
Li Zhou, Jianlong Kang, Yulan Dong, Yiduo Wang, Yejun Li, Han Huang, Si Xiao, Yingwei Wang, Jun He
Summary: Featured with high thermal decomposition temperature and layered structure, violet phosphorus (VP) has demonstrated high-performance optoelectronic and photonics applications at the nanoscale. In this study, few-layer and nanometer-sized VP with robust stability in different environments were successfully prepared using ultrasound-assisted liquid phase exfoliation. The ultrafast carrier dynamics and third-order nonlinear optical response of VP were investigated for the first time, showing its potential for ultrafast nonlinear photonic applications like saturable absorbers and optical switches.
Article
Materials Science, Multidisciplinary
Yuning Liang, Wenjie Hu, Xue Yuan, Zaiping Zeng, Baohua Zhu, Yuzong Gu
Summary: In this study, the influence of the coordination numbers of metal-organic frameworks (MOFs) on their nonlinear optical (NLO) properties is investigated for the first time. Different coordination numbers of MOFs are synthesized using trifluoroacetic acid as an auxiliary agent and their NLO properties are tested. The results show that MOFs with high coordination numbers can effectively modulate their NLO absorption properties from saturable absorption to reverse saturable absorption by increasing the excitation intensity. First-principles calculations demonstrate that a change in the coordination numbers leads to a change in the charge transfer from metal to ligand, resulting in different NLO responses. MOFs with a high coordination number have potential applications in novel optical switches or logic gates.
ADVANCED OPTICAL MATERIALS
(2022)
Article
Nanoscience & Nanotechnology
A. S. Kulagina, A. V. Sandulenko, V. M. Volynkin, S. K. Evstropiev
Summary: The study shows that vanadium-doped plasticized epoxy polymer composites exhibit a broad absorbance band at a wavelength of 950 nm, making them suitable for use as passive Q-switches in laser systems.
ADVANCED COMPOSITES AND HYBRID MATERIALS
(2021)
Article
Nanoscience & Nanotechnology
Chunhui Lu, Mingwei Luo, Yanqing Ge, Yuanyuan Huang, Qiyi Zhao, Yixuan Zhou, Xinlong Xu
Summary: Two-dimensional layered materials exhibit layer-dependent optical properties in nonlinear optics due to complex nonlinear absorption processes, which are difficult to understand. Experimental results show that the nonlinear optical properties of chalcogenide compounds are related to both pump intensity and layer number, with saturable absorption occurring in thick samples and reverse saturable absorption occurring in thin samples. The transition between two-photon absorption and saturable absorption is found to be dependent on the layer thickness and band gaps in the materials.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Review
Materials Science, Multidisciplinary
Jan K. Zareba, Marcin Nyk, Marek Samoc
Summary: Research on novel optical materials with nonlinear optical properties, particularly nonlinear absorption, has potential applications in optoelectronics, photonics, and biophotonics. The concept of NLO pigments applies to coordination polymers and metal-organic frameworks, while perovskites show promise for NLO applications. Nanocrystalline materials and low-dimensional structures, excluding carbon nanostructures, are also being actively studied in the field.
ADVANCED OPTICAL MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Mengjuan Diao, Hui Li, Xiangyun Gao, Ruipeng Hou, Qian Cheng, Zhiyang Yu, Zhipeng Huang, Chi Zhang
Summary: In this study, it was reported that electrochemical ion-intercalation is an effective strategy for enhancing the nonlinear optical absorption of materials. By intercalating alkali-metal ions into SnS2 nanosheets, the optical nonlinearity of the samples was significantly improved, with Li-intercalated SnS2 showing the best nonlinear absorption performance. The ion intercalation introduces abundant defects which contribute to enhanced optical properties, making the material potential candidates for nonlinear optical applications.
ADVANCED FUNCTIONAL MATERIALS
(2021)
Article
Materials Science, Multidisciplinary
Yuting Wang, Xiong Shen, Chenggang Yuan, Bingkun Chen, Lin Chen, Zhongming Wang, Fei Hu, Qiuyun Ouyang
Summary: Halide perovskite (Cs3Cu2Br5) is synthesized via thermal injection method. XRD confirms the crystal structure of Cs3Cu2Br5. Organic glasses are fabricated by dispersing Cs3Cu2Br5 in MMA. The Cs3Cu2Br5/PMMA organic glasses exhibit excellent nonlinear absorption and refraction properties. The perovskite material shows great potential in devices such as LEDs and optical switches.
MATERIALS CHEMISTRY AND PHYSICS
(2023)
Article
Materials Science, Ceramics
A. S. Jayasree, K. Mani Rahulan, R. Annie Sujatha, G. Vinitha, N. Angeline Little Flower
Summary: The third order nonlinear optical properties of Ni doped ZnMoO4 nanostructures with different concentrations of Ni were investigated. It was found that the absorption edge of the nanostructures shifted slightly towards longer wavelength and an additional absorption band appeared at 440 nm upon Ni doping. The synthesized nanostructures exhibited reverse saturable absorption and negative nonlinearities under the continuous wave laser. The measured third order nonlinear optical susceptibility was approximately 10-6 esu, indicating that the nonlinear optical characteristics of the nanostructures could be controlled by Ni doping and making them a potential candidate for optical device applications.
CERAMICS INTERNATIONAL
(2022)
Article
Chemistry, Physical
Jibi Kunjumon, Merin George, K. Abha, Sreelakshmi K. Gopi, G. Vinitha, D. Sajan, Reji Philip
Summary: A combined investigation of the photoluminescence and nonlinear optical properties of SmCTO ceramics has been carried out. The presence of defects such as oxygen vacancies in SmCTO has been confirmed through photoluminescence spectra. The high third order nonlinear absorption coefficient of SmCTO ceramics makes them suitable for the development of optical limiting devices.
SURFACES AND INTERFACES
(2023)
Article
Materials Science, Multidisciplinary
Bingkun Chen, Dan Fang, Lin Chen, Xiong Shen, Jinhe Wei, Dengkui Wang, Qianwen Zhang, Qiuyun Ouyang, Xuan Fang, Xue Chen
Summary: Third-order nonlinear optical and optical limiting properties of Zn-doped MAPbBr3/PMMA are investigated. The nonlinear absorption coefficient increases and the nonlinear refraction coefficient decreases after Zn doping, possibly due to the decreased defect states. The Zn-doped MAPbBr3/PMMA exhibits enhanced optical limiting property with smaller limiting threshold and clamping normalized transmittance compared to the undoped sample.
MATERIALS CHEMISTRY AND PHYSICS
(2023)
Article
Chemistry, Physical
Dipanjan Banerjee, Sree Satya Bharati Moram, Chandu Byram, Jagganath Rathod, Twinkle Jena, Gopala Krishna Podagatlapalli, Venugopal Rao Soma
Summary: The research presents the outcomes of extensive femtosecond nonlinear optical studies on TiO2 and Ag-doped TiO2 nanoparticles. It was observed that Ag-TiO2 nanoparticles exhibited a significant preference for three-photon absorption and had a higher nonlinear susceptibility compared to pure TiO2 nanoparticles under 1 kHz pulse excitation. Additionally, the synthesized nanocomposites showed a noteworthy presence of three-photon absorption in the near-IR regime, which is a rare observation in these types of nanoparticles.
APPLIED SURFACE SCIENCE
(2021)
Article
Optics
Jijuan Jiang, Fengjuan Miao, Wenzhi Wu, Degui Kong, Buyinga Ridi, Yachen Gao
Summary: Z-scan technology was used to investigate the nonlinear absorption and nonlinear refraction of silver nanoparticles with different sizes under various laser intensities. The results showed that the nonlinear absorption and nonlinear refraction of the silver nanoparticles depended on their size, and different sizes exhibited different characteristics.
Article
Chemistry, Inorganic & Nuclear
Guang-Hui Chen, Yan-Ping He, Zi-Rui Wang, Qiao-Hong Li, Zhi-Zhou Ma, Jian Zhang
Summary: By incorporating Ti4L6 (L = embionate) cages and various N,N-chelated transition-metal cations with strong inherent pi-conjugation properties, tight-packed high-performance materials with adjustable nonlinear optical (NLO) effects are achieved. These cage-based ionic pairs exhibit different supramolecular packing structures, including a pi-midline ellipsis pi stacked porous framework with strategically located Ti4L6 cages. Introduction of large pi-conjugated 1,10-phenanthroline type ligands with adjusted aromatic ring electron cloud density effectively regulates their third-order NLO properties, resulting in nonlinear absorption responses from reverse saturated absorption (RSA) to saturated absorption (SA). This work not only presents an extraordinary coordination cage-based assembly, but also provides new insights into the function of cage materials.
INORGANIC CHEMISTRY FRONTIERS
(2022)
Article
Optics
Ziyao Lyu, Changshun Wang, Yujia Pan, Renjie Xia, Tianyu Chen, Lili Sun
Article
Chemistry, Analytical
Lili Sun, Changshun Wang
ANALYTICAL LETTERS
(2020)
Article
Spectroscopy
Lili Sun, Changshun Wang, Yujia Pan, Tianyu Chen, Ziyao Lv
JOURNAL OF RAMAN SPECTROSCOPY
(2020)
Article
Optics
Yujia Pan, Changshun Wang
OPTICS COMMUNICATIONS
(2020)
Article
Multidisciplinary Sciences
Ziyao Lyu, Changshun Wang
SCIENTIFIC REPORTS
(2020)
Article
Chemistry, Multidisciplinary
Zhihang Guo, Junzi Li, Changshun Wang, Rulin Liu, Jiechun Liang, Yang Gao, Jiaji Cheng, Wenjing Zhang, Xi Zhu, Ruikun Pan, Tingchao He
Summary: Hybrid organic-inorganic metal halides incorporating chiral organic molecules have been studied for their unique optical properties, leading to the synthesis of chiral hybrid copper halides. The chiral materials showed giant optical activity and highly efficient second harmonic generation, providing insights into the design of chiral materials for nonlinear photonic device applications.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Physics, Applied
Yujia Pan, Changshun Wang, Ziyao Lyu, Tianyu Chen
Summary: Experimental demonstration of nonlinear-induced asymmetric diffraction based on spatial self-phase modulation reveals the control over diffraction rings and the realization of unidirectional diffraction excitation. The symmetry breaking of light propagation is attributed to different nonlinear optical response strengths of two azo-containing materials.
APPLIED PHYSICS LETTERS
(2021)
Article
Optics
Ziyao Lyu, Changshun Wang
Summary: A two-dimensional diffraction device has been designed and fabricated in an azopolymer-silver double-layer film, showing polarization modulation, angular sensitivity, and repeatable recording. Experimental results are analyzed through scalar diffraction theory and Jones matrices in combination with the report of orthogonal modulation of diffraction beams and efficiency related to incident angle and recording rotation angle.
OPTICS AND LASER TECHNOLOGY
(2021)
Article
Optics
Yujia Pan, Ziyao Lyu, Changshun Wang
Summary: Experimental demonstration of all-optical shaping non-conventional beams using spatial cross-phase modulation in azo-containing material solution. Generation and manipulation of annular and triangular beams through a light-control-light system. The formation of non-conventional beams attributed to nonaxis-symmetrical thermal convection induced by controlling light. Potential applications in optical limiting, all-optical modulation, optical trapping, etc.
Article
Optics
Yujia Pan, Ziyao Lyu, Changshun Wang
Summary: Two-color all-optical switching is achieved in azo dye doped nematic liquid crystals through the SXPM method, effectively eliminating irregular distortions caused by light-induced thermal convection. The SXPM phenomenon between the two lights only occurs when they are merged together, with even a small intersection angle completely changing the pattern of the 633 nm light.
Article
Chemistry, Multidisciplinary
Zhihang Guo, Junzi Li, Jiechun Liang, Changshun Wang, Xi Zhu, Tingchao He
Summary: This study synthesized two pairs of lead-free chiral HMHs and explored their performance in terms of optical activity and second-harmonic generation, providing insights into regulating the optical activity of chiral HMHs.
Article
Multidisciplinary Sciences
Ziyao Lyu, Changshun Wang
Summary: In this work, a wavelength-independent holographic scheme for efficient decoding of optical vortex states is proposed. The scheme utilizes reference-free shearing interferometry and the spin-orbit optical Hall effect to distinguish entangled spin and orbital angular momentum modes and achieve single-shot vortex detection. Experimental results demonstrated the feasibility of the proposed scheme.
SCIENTIFIC REPORTS
(2022)
Article
Physics, Multidisciplinary
Ziyao Lyu, Changshun Wang
Summary: This study investigates the effect of optical orbital angular momentum (OAM) on polarized waves and successfully manipulates the polarization using all-optical OAM control. The polarization states of diffraction beams can be controlled by adjusting the spatial degree of freedom of the recording light field. This research may find applications in various devices.
FRONTIERS IN PHYSICS
(2022)
Article
Physics, Multidisciplinary
Chen Tian-Yu, Wang Chang-Shun, Pan Yu-Jia, Sun Li-Li
Summary: In this study, optical vortices with different topological charges were recorded in azo polymer films using holographic technology. The study focused on the generation and reconstruction of optical vortices, as well as the erasability and durability of the sample. Experimental results showed that optical vortices with different topological charges can be recorded at the same speed, and they may split during the recording process.
ACTA PHYSICA SINICA
(2021)
Article
Optics
Renjie Xia, Changshun Wang, Tianyu Chen, Yujia Pan, Ziyao Lu, Lili Sun
CHINESE OPTICS LETTERS
(2019)
