Article
Optics
Fuyong Yue, Riccardo Piccoli, Mikhail Y. Shalaginov, Tian Gu, Kathleen A. Richardson, Roberto Morandotti, Juejun Hu, Luca Razzari
Summary: This research demonstrates the possibility of enhancing third-harmonic generation (THG) in the mid-wave infrared (MWIR) range through designing a metasurface, with a 30-fold enhancement achieved using a highly nonlinear material Ge2Sb2Se4Te1 (GSST). GSST-based metasurfaces offer unprecedented broadband transparency, large refractive index, high nonlinear response, and unique phase-change properties, making them an attractive solution for reconfigurable and ultra-compact nonlinear devices operating in the MWIR.
LASER & PHOTONICS REVIEWS
(2021)
Article
Multidisciplinary Sciences
Yang Zhang, Liang Fu
Summary: A method for broadband long-wavelength photodetection using the nonlinear Hall effect in noncentrosymmetric quantum materials is proposed. The photodetector operates at zero external bias with fast response speed and zero threshold voltage. The intrinsic current responsivity due to the Berry curvature mechanism is a material property independent of incident frequency or scattering rate, and can be evaluated from first-principles electronic structure calculations.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2021)
Article
Materials Science, Multidisciplinary
Qi Wu, Can Yang, Xian Liu, Jie Ma, Fei Liang, Yeshuang Du
Summary: The newly proposed halide polymorph NHB with quasi-one-dimensional structure shows improved optical properties due to reduced dimensionality, making it a potential candidate for infrared nonlinear optical applications. This study demonstrates successful material design in halide crystals and highlights dimensionality control as a good strategy in designing better NLO materials.
MATERIALS TODAY PHYSICS
(2021)
Article
Materials Science, Multidisciplinary
C. Yang, X. Liu, C. Teng, X. Cheng, F. Liang, Q. Wu
Summary: Mid-far infrared nonlinear optical (NLO) materials have attracted increasing scientific and technological interest due to their wide applications. Through hierarchical molecular design strategy, a promising NLO material Ag2HgI4 was synthesized by a simple solution method, showing strong second harmonic generation (SHG) response and wide transparency range. Theoretical calculations provided insights on nonlinearity enhancement and broadening transmittance, attributing to reduced phonon frequency and increased nonbonding electronic states on top valence band.
MATERIALS TODAY PHYSICS
(2021)
Review
Chemistry, Multidisciplinary
Yari Foelen, Albert P. H. J. Schenning
Summary: This review describes the principle and application of polymer indicators. Polymer indicators prepared based on the structural color principle can show visible color changes under specific stimulus conditions, and have broad application prospects.
Article
Materials Science, Multidisciplinary
Wen-Fa Chen, Xiao-Ming Jiang, Bin-Wen Liu, Guo-Cong Guo
Summary: For the first time, the AgGaS2 structure evolved into an Ag-based sulfide system integrating dual s-block elements, leading to the discovery of two NLO crystals with excellent properties. These crystals have large band gaps and high NLO coefficients, making them potential candidates for infrared NLO materials.
MATERIALS TODAY PHYSICS
(2023)
Article
Materials Science, Multidisciplinary
Man-Man Chen, Zuju Ma, Bing-Xuan Li, Wen-Bo Wei, Xin-Tao Wu, Hua Lin, Qi-Long Zhu
Summary: This study identified non-centrosymmetric arsenates as a new source of IR NLO materials with unique zero-dimensional structures and key NLO parameters, showing wide phase-matching ranges, significant second-harmonic generation efficiency, and large laser-induced damage thresholds. Theoretical studies highlighted the critical role of discrete As-based coordination polyhedra in the linear optical and NLO responses of these compounds.
JOURNAL OF MATERIALS CHEMISTRY C
(2021)
Article
Materials Science, Multidisciplinary
Junxian Huang, Yuhui Yang, Junzhao He, Zhe He, Han Wu
Summary: A novel bichromophores Y was synthesized and studied for its good solubility, thermal stability, and small electro-optic coefficient in doped films. The nonplanar molecular structure of TPE1 moieties weakened electrostatic interactions between molecules, leading to decreased macroscopic EO activity.
Review
Chemistry, Inorganic & Nuclear
Dong Gao, Hongping Wu, Zhanggui Hu, Jiyang Wang, Yicheng Wu, Hongwei Yu
Summary: Metal iodates with I(V) and lone electron pairs in asymmetric coordination geometry have excellent second-harmonic generation (SHG) responses, wide transmission range, and large band gaps. The introduction of large electronegative fluorine atoms into metal iodates has attracted much attention. These F-containing iodates have different compositions, symmetries, and transmittance compared to pure iodates. The structure-directing properties of oxide-fluoride anions can greatly affect the crystal structures of F-containing iodates. In this review, we summarize the research progress and discuss the effect of oxide-fluoride anions on the crystal structures of F-containing iodates, classified according to the different valences of the central cations.
CHINESE JOURNAL OF STRUCTURAL CHEMISTRY
(2023)
Article
Optics
Lukasz A. Sterczewski, Mathieu Fradet, Clifford Frez, Siamak Forouhar, Mahmood Bagheri
Summary: Mid-wave infrared optical frequency combs (OFC) are crucial for spectroscopy applications. Quantum well diode laser (QWDL) OFC shows excellent spectral uniformity and narrow optical linewidths. The source offers a wide optical span and high repetition rate. QWDL OFCs are highly suitable for chip-based real-time sensing systems in the mid-infrared.
LASER & PHOTONICS REVIEWS
(2023)
Article
Instruments & Instrumentation
Liyuan Guo, Pengxiang Liu, Feng Qi, Jiyong Yao, Weifan Li, Xingyu Zhang, Mingjun Xia
Summary: Non-oxide BaGa4Se7 crystal is proven to be an excellent nonlinear medium for coherent mid-infrared (MIR) generation and up-conversion detection. A comprehensive study, based on an analytical model verified through experiments, investigates the nonlinear optical up-conversion process and achieves high responsivity. The study provides a theoretical reference for calibration and optimal design of the detection system, with potential application to other MIR up-conversion configurations.
INFRARED PHYSICS & TECHNOLOGY
(2023)
Article
Nanoscience & Nanotechnology
Yazhong Wang, Johannes Benduhn, Lukasz Baisinger, Christoph Lungenschmied, Karl Leo, Donato Spoltore
Summary: In this study, an extraction barrier for holes was intentionally introduced in organic semiconductor devices to achieve nonlinear photoresponse for distance measurements. By manipulating the illumination spot area and irradiance, the distance between the organic photodetector (OPD) and the light source can be determined accurately. The fully vacuum-deposited organic NIR optical distance photodetectors showed high potential for precise, robust, low-cost, and simple optical distance measurement setups.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Chemistry, Multidisciplinary
Xiang-Zhao Zhu, Hong-Dan Hu, Song-Hua Chen, Yuan-Ming Li, Jian-Feng Yan, Yao-Feng Yuan
Summary: In this study, an electron-rich benzothiadiazole group was introduced into the classical organic nonlinear material dimethylaminonitrostilben (DANS), which improved the intramolecular charge-transfer (ICT) efficiency and increased the dipole moment difference between the ground and excited states of the chromophore. Three benzothiadiazole derivatives were synthesized and characterized for their nonlinear optical properties using the Z-scan method. The nonlinear response of these chromophores was one order of magnitude higher than that of DANS. The refractive indices n(2) of the three chromophores increased in the order of BTN-2 > BTN-1 > BTN-3.
NEW JOURNAL OF CHEMISTRY
(2023)
Review
Chemistry, Inorganic & Nuclear
Yu Cai, Yi Pan, Longcai Liu, Tian Zhang, Chen Liang, Xiaozhou Mou, Xiangming Ye, Wenjun Wang, Xiaochen Dong
Summary: This article provides a comprehensive review of the development of croconic acid (CA)-based near-infrared (NIR) materials in the field of biomedical applications. The rational structure design of CA molecules for excellent NIR optical properties and the formation of CA dye-based nanomaterials for improved bioavailability and stability are introduced. The biomedical applications of CA-based functional materials, including photothermal therapy, photoacoustic imaging, phototheranostics, and multimodal treatment, are summarized. The perspectives and potential drawbacks of CA-based materials for future clinical transformation are systematically discussed.
COORDINATION CHEMISTRY REVIEWS
(2023)
Review
Chemistry, Inorganic & Nuclear
Linan Wang, Qi Sun, Junjie Li
Summary: As the core device of all-solid-state laser, infrared (IR) nonlinear optical (NLO) material plays a critical role in various applications. This review summarizes the progress of high-performance sulfide IR NLO materials since 2018, focusing on their synthesis, crystal structure, optical properties, and structure-property relationship. The potential opportunities and challenges in IR NLO materials are also discussed.
CHINESE JOURNAL OF STRUCTURAL CHEMISTRY
(2023)
Article
Chemistry, Applied
Ahmed M. El-naggar, Zein K. Heiba, Mohamed Bakr Mohamed, Amgad M. Kamal, Mohamed M. Osman, Abdullah A. Albassam, Gandham Lakshminarayana
Summary: Polyvinyl alcohol (PVA)/polyvinylpyrrolidone (PVP) polymer blends doped with different ratios of nano SnS2/Fe exhibit a single hexagonal phase structure, with increased nonlinear optical parameters as the dopant concentrations increase. Doping significantly affects the optical properties of the blends, demonstrating the potential for enhancing their performance through controlled nanofiller doping.
JOURNAL OF VINYL & ADDITIVE TECHNOLOGY
(2022)
Article
Materials Science, Multidisciplinary
M. Ya. Rudysh, A. O. Fedorchuk, V. Yo. Stadnyk, P. A. Shchepanskyi, R. S. Brezvin, B. I. Horon, O. Yu. Khyzhun, O. M. Gorina
Summary: The theoretical study of the (NH4)2BeF4 crystal explores its structure and specific properties within the framework of the DFT. The band-energy structure and fundamental absorption edge of the crystal are calculated and discussed. The dielectric function, refractive indices, and elastic properties of the crystal are also calculated and compared with experimental data. The findings highlight the anisotropy of optical and elastic properties, which is important for potential applications of the crystal.
CURRENT APPLIED PHYSICS
(2023)
Article
Chemistry, Physical
J. Jedon, A. Lazarowska, T. Lesniewski, S. Mahlik, M. G. Brik, M. Piasecki, A. M. Srivastava, W. W. Beers, E. Zych
Summary: This research demonstrates the potential to tune the spectral position of Mn4+ red emission through chemically induced symmetrical disturbance in double perovskite materials. The disorder in the crystal lattice allows for the engineering of phosphors with applications in pressure sensors and horticulture. The study systematically investigates the correlation between chemically induced lattice distortion and the luminescence of Mn4+, providing insights into the energy levels and intensity of Mn4+ emission. The findings deepen the understanding of Mn4+-activated phosphors and offer guidance for the search of materials for advanced practical uses.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Materials Science, Multidisciplinary
A. V. Racu, Z. Ristic, A. Ciric, V. Dordevic, G. Buse, M. Poienar, M. J. Gutmann, O. Ivashko, M. Stef, D. Vizman, M. D. Dramicanin, M. Piasecki, M. G. Brik
Summary: This study investigates the correlation between optical properties, local symmetry, and crystal structure in CaF2 and BaF2 fluoride crystals doped with ErF3. The differences in optical properties between CaF2 and BaF2 crystals at room temperature are observed and attributed to the differences in cationic radius and dopant-host ionic radius. The determined symmetries and bond lengths of Er3+- F- ions in both crystals are reported. This study provides valuable insight into the development of lanthanide-doped optical materials.
Article
Physics, Condensed Matter
R. S. Brezvin, M. Piasecki, O. Ya. Kostetskyi, P. A. Shchepanskyi, V. Yo. Stadnyk, O. R. Onufriv, M. Ya. Rudysh
Summary: beta-LiNH4SO4:Mn2+ crystals with different concentrations were synthesized and their optical properties were studied. The introduction of impurities was found to increase the absolute values of refractive indices and birefringence, as well as change the phase transition point and the temperature interval of the intermediate phase. These findings were independently confirmed by other experimental methods.
PHYSICA B-CONDENSED MATTER
(2023)
Article
Optics
A. M. Srivastava, M. G. Brik, W. W. Beers, Chong-Geng Ma, M. Piasecki, W. E. Cohen
Summary: A comparative study found that the hypersensitivity of the 5D0-*7F2 transition in Eu3+ luminescence is correlated with the covalence and polarizability of the (XO4)3-(X = P, V) polyanion. The intensity of this transition is always higher in the vanadate system due to higher covalence and polarizability of the (VO4)3-polyanion. The difference in intensity between phosphate and vanadate systems is consistent with the ligand dipolar polarization model.
JOURNAL OF LUMINESCENCE
(2023)
Article
Engineering, Electrical & Electronic
Haidong Wang, Xiangqi Gao, Yan Wang, Zhaojie Zhu, Zhenyu You, Jianfu Li, G. Lakshminarayana, Chaoyang Tu
Summary: A high-quality Dy3+/Gd3+: SrF2 single crystal with enhanced absorption and emission properties compared to Dy: SrF2 crystal has been successfully grown by the Bridgman method. Resonant energy transfer between Gd3+ and Dy3+ ions has been observed, and the yellow emission of Dy3+ ions under 274 nm excitation has been identified. The Gd3+ ion can sensitize the emission of Dy3+ ion in the yellow region under UV light excitation. These results suggest that Dy, Gd: SrF2 crystal has the potential to be used as a material for an all-solid-state yellow laser pumped by a blue InGaN laser diode or UV laser.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2023)
Article
Physics, Condensed Matter
M. Ya. Rudysh, P. A. Shchepanskyi, G. L. Myronchuk, M. Piasecki, O. S. Martyniuk
Summary: First-principles calculations were performed to study the vibrational properties of AgAlS2 crystal for the first time. The phonon dispersion and density of states were calculated, revealing the dynamical stability of the system. The vibrational modes were classified based on group theory and selection rules for infrared and Raman spectra. The Raman and infrared spectra were calculated, showing the LO-TO splitting of infrared modes. The thermodynamic functions and the propagation velocities and anisotropy of acoustic waves were also analyzed.
PHYSICA B-CONDENSED MATTER
(2023)
Article
Physics, Condensed Matter
Mekhrdod S. Kurboniyon, Umar Zafari, Chong-Geng Ma, Michal Piasecki, Mikhail G. Brik, Tomoyuki Yamamoto
Summary: The geometrical and electronic structures of Mn-doped CaTiO3, CaZrO3, and CaSnO3 deep-red emission phosphors were investigated experimentally and theoretically. The samples were synthesized with the solid-state reaction method by adjusting the concentration of Mn doping. The crystal structures were examined using powder X-ray diffraction, and the valence states of the doped Mn ions were determined through Mn-L-3 X-ray absorption near-edge structure (XANES) spectra. Diffuse reflectance spectra were observed to analyze the changes in electronic structures caused by Mn doping. First-principles calculations were also conducted to investigate the geometrical and electronic structures of Mn-doped CaMO3, employing different types of electron-electron correlation functionals.
PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS
(2023)
Article
Chemistry, Physical
Mega Novita, Sigit Ristanto, Ernawati Saptaningrum, Slamet Supriyadi, Dian Marlina, Ferdy Semuel Rondonuwu, Alok Singh Chauhan, Benjamin Walker, Kazuyoshi Ogasawara, Michal Piasecki, Mikhail G. Brik
Summary: Mn4+-activated fluorides are widely used for their luminescence properties, but little research has been done on the effect of local structure on red phosphors. This study found that the energy levels of the crystals change when the Mn-F bond length decreases, resulting in a decrease in electron-electron repulsion.
Article
Materials Science, Multidisciplinary
A. M. Srivastava, M. G. Brik, W. W. Beers, B. Lou, C. -G. Ma, M. Piasecki, W. E. Cohen
Summary: This study conducts a comparative analysis of Eu3+ ion luminescence in YXO4 (X=P, As, V) with the tetragonal zircon structure, focusing on the hypersensitivity D-5(0) -> F-7(2) (Delta J = 2) transition intensity. The asymmetry ratio, R = I(D-5(0) - F-7(2))/I(D-5(0) - F-7(1)), and the Judd-Ofelt Omega(2) intensity parameter increase in the order YPO4 < YAsO4 < YVO4. The correlation is interpreted based on the covalency and polarizability of (XO4)(3-), which follow the order (PO4)(3-) < (AsO4)(3-) < (VO4)(3-). Electronic band structure calculations and Eu3+5D0 -> F-7(2) transition oscillator strength are consistent with the ligand dipolar polarization model for hypersensitivity.
ECS JOURNAL OF SOLID STATE SCIENCE AND TECHNOLOGY
(2023)
Article
Materials Science, Multidisciplinary
Tuan V. Vu, O. Y. Khyzhun, A. A. Lavrentyev, B. V. Gabrelian, K. F. Kalmykova, L. I. Isaenko, A. A. Goloshumova, P. G. Krinitsyn, G. L. Myronchuk, M. Piasecki
Summary: In this study, the electronic structure and optical constants of Li2In2GeSe6 compound were investigated through a combination of experimental and theoretical methods. XPS spectra of the crystal were measured and compared with theoretically calculated density of states (DOS). The calculations showed good agreement with the experimental results and yielded a band gap value of 2.26 eV. The optical properties of Li2In2GeSe6 were also studied in detail using the TB-mBJ+U technique.
MATERIALS TODAY COMMUNICATIONS
(2023)
Article
Chemistry, Inorganic & Nuclear
Tuan V. Vu, Oleg Khyzhun, Galyna L. Myronchuk, Mariana Denysyuk, Lyudmyla Piskach, Andrij O. Selezen, Ilona Radkowska, Anatolii O. Fedorchuk, Svitlana S. Petrovska, Vira A. Tkach, Michal Piasecki
Summary: Tl2HgGeSe4 crystal was successfully synthesized using the Bridgman-Stockbarger technology, and its electronic structure and optical constants were investigated experimentally and theoretically. The crystal exhibited low moisture sensitivity and covalent bonding. Theoretical calculations using the TB-mBJ + U + SO model showed good agreement with experimental results, determining an indirect energy band gap and calculating the optical constants.
INORGANIC CHEMISTRY
(2023)
Article
Chemistry, Physical
O. Y. Khyzhun, Tuan V. Vu, G. L. Myronchuk, M. Denysyuk, L. V. Piskach, A. O. Selezen, A. A. Lavrentyev, B. V. Gabrelian, A. O. Fedorchuk, V. A. Tkach, S. S. Petrovska, M. Piasecki
Summary: A nearly centimeter-size Tl2HgSnSe4 crystal was successfully derived by Bridgman-Stockbarger growth technique, and its electronic and optical properties were experimentally and theoretically investigated. The crystal showed very little hygroscopic behavior on its surface, which is important for practical applications. The experimental and theoretical results suggest that Tl2HgSnSe4 has potential applications in optoelectronics and solar photovoltaics.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Physical
Myron Ya. Rudysh, Anatolii O. Fedorchuk, Mikhail G. Brik, Jurij Grechenkov, Dmitry Bocharov, Sergei Piskunov, Anatoli I. Popov, Michal Piasecki
Summary: This study comprehensively examines the structural composition and properties of the AgAlS2 crystal during its high-pressure phase. Various aspects such as the crystal's structural changes, band energy structure, phonon spectrum, and optical functions were analyzed.
