Article
Optics
E. Neradovskaia, B. Maingot, G. Cheriaux, C. Claudet, N. Forget, A. Jullien
Summary: This article introduces a novel ultrafast spectroscopic method called nonlinear chirped interferometry to characterize third-order nonlinearity on the femtosecond time-scale. By observing the spectral interference between a transmitted probe and a reference pulse, the method detects nonlinear signals by measuring the transient swing of the probe group delay. The method is less sensitive to environmental phase fluctuations and drifts, and can detect small frequency shifts without heterodyne detection or active phase-stabilization.
Article
Materials Science, Multidisciplinary
Zhengfeng Guo, Honggang Gu, Mingsheng Fang, Baokun Song, Wei Wang, Xiuguo Chen, Chuanwei Zhang, Hao Jiang, Lin Wang, Shiyuan Liu
Summary: The study quantitatively confirmed the giant optical anisotropy of ZrTe5 for the first time using Mueller matrix spectroscopic ellipsometry and revealed the physical mechanism through first-principle calculations. ZrTe5 exhibits significant dispersive birefringence and dichroism, showing potential in fabricating miniature and integrated polarization-sensitive devices.
ACS MATERIALS LETTERS
(2021)
Article
Crystallography
Runqing Liu, Hongping Wu, Hongwei Yu, Zhanggui Hu, Jiyang Wang, Yicheng Wu
Summary: CIBO is a new noncentrosymmetric cadmium indium borate with good optical and thermal properties. Its structure includes distorted InO6 and CdOn polyhedra and exhibits strong second harmonic generation and moderate birefringence due to the approximately parallel arrangement of BO3 triangles.
Article
Physics, Multidisciplinary
S. Chinnasami, Rajesh Paulraj, P. Ramasamy
Summary: Low solubility potassium pentaborate tetrahydrate (KB5), ammonium pentaborate tetrahydrate (AB5), and mixed (KAB5) single crystals were successfully grown using the Sankaranarayanan-Ramasamy (SR) method. Various analyses were conducted, including crystal structures, growth direction, transmittance properties, optical characteristics, refractive index, birefringence interferometry, piezoelectric behavior, and Vickers Microhardness measurements.
CHINESE JOURNAL OF PHYSICS
(2021)
Article
Optics
Long Cheng, Fabio Formisano, Kirill A. Grishunin, Sergey D. Gorelov, Paul H. M. van Loosdrecht, Jian Yan, Xuan Luo, Zhigao Sheng, Evgeny A. Mashkovich
Summary: This study demonstrates the efficient induction of the quadratic electro-optic effect (Kerr effect) by a terahertz (THz) electric field in the quasi-two-dimensional material MnPS3. The findings suggest that MnPS3 has the potential to be a promising candidate for practical applications in future ultrafast electro-optical devices.
Article
Optics
Xiaomei Chen, Wen-gao Lu, Jialun Tang, Yongyou Zhang, Yongtian Wang, Gregory D. Scholes, Haizheng Zhong
Summary: Waveplates are commonly used in photonics for controlling the polarization of light, typically made from birefringent crystals. This study introduces a discovery of wideband achromatic retardation in Cs4PbBr6 perovskite crystals embedded with CsPbBr3 nanocrystals, providing potential for future applications with their ease of fabrication.
Review
Materials Science, Multidisciplinary
Tadashi Inoue
Summary: Orientational birefringence dominates in the rubbery region, while glassy birefringence contributes in the glassy region. Optimizing both contributions is essential to control strain-induced birefringence in optical resins. Copolymerization of a ternary system is effective in controlling the birefringence.
ACS APPLIED POLYMER MATERIALS
(2021)
Review
Chemistry, Inorganic & Nuclear
Qi Shi, Lingyun Dong, Ying Wang
Summary: Nonlinear optical (NLO) materials are crucial in laser technology, and birefringence is a key parameter for achieving angle phase-matching conditions. This review summarizes various methods for measuring the refractive index and birefringence of NLO materials, ranging from sub-millimeter to centimeter-sized crystals. The review focuses on recently developed techniques such as the minimum deflection angle method, auto-collimation method, prism coupling method, oil immersion technique, interference color method, and theoretical calculation (DFT), highlighting their principles, typical applications, advantages, and drawbacks. Representative examples of birefringent measurements are also presented. The goal is to provide a comprehensive understanding of birefringence characterization for NLO materials and accelerate the discovery of new NLO crystals.
CHINESE JOURNAL OF STRUCTURAL CHEMISTRY
(2023)
Article
Materials Science, Multidisciplinary
Kentaro Miyata, Kiyoshi Kato, Satoshi Wada, Valentin Petrov
Summary: The temperature tuning of CdSe optical parametric oscillators (OPO's) is investigated by pumping with the signal and idler outputs of a CsTiOAsO4 (CTA) OPO. New Sellmeier and thermo-optic dispersion formulas for CdSe are constructed using the measured temperature-dependent phase-matching conditions, and these formulas are verified through temperature-tuned sum-frequency generation (SFG) experiments.
OPTICAL MATERIALS EXPRESS
(2022)
Article
Chemistry, Physical
Igor M. Goncalves, Anusri Medda, Alyson J. A. Carvalho, Ceciilia L. A. V. Campos, Soubhik Ghosh, Anderson S. L. Gomes, Amitava Patra
Summary: The nonlinear optical response of CdSe and CdSe/CdS core/shell nanoplatelets in toluene suspension was studied using Z-scan and optical Kerr gate techniques. The Z-scan analysis yielded nonlinear coefficients of n(2) = 1.4 x 10(-16) cm(2)/W and n(2) = 1.3 x 10(-16) cm(2)/W for CdSe and CdSe/CdS NPLs, respectively. The dominant behavior was fifth-order nonlinear absorption, with alpha(4) = 4.0 x 10(-2) cm/GW for CdSe NPLs and alpha(4) = 9.0 x 10(-3) cm/GW for CdSe/CdS NPLs. The results from Z-scan and optical Kerr gate were in good agreement, and the response time from OKG was less than 1 ps for all materials. NLA was observed for CdSe and CdSe/CdS NPLs but not for toluene, indicating that the presence of NPLs reduces the threshold of absorptive nonlinearity. The electronic structure of the materials was discussed to explain the results.
JOURNAL OF PHYSICAL CHEMISTRY C
(2023)
Article
Multidisciplinary Sciences
Marjan Ghasemi, Pulak Chandra Debnath, Byungjoo Kim, Marzieh Pournoury, Reza Khazaeinezhad, Sahar Hosseinzadeh Kassani, Dong-Il Yeom, Kyunghwan Oh
Summary: Using aqueous precursors, thin-solid films of ribonucleic acid (RNA) and deoxyribonucleic acid (DNA) were successfully fabricated, and their potential as saturable absorbers (SAs) on a fiber optic platform for ultrafast nonlinear optics was investigated. Both RNA and DNA SAs showed comparable performances in terms of nonlinear transmission, modulation depth, and saturation intensity. The insertion of these devices into an Erbium-doped fiber ring-laser cavity enabled efficient passive Q-switching operation, and RNA-SA further facilitated robust mode-locking and generated a transform-limited soliton pulse with a pulse duration of 633 femtoseconds. A detailed analysis compared RNA and DNA fiber optic SAs with other nonlinear optic materials, demonstrating the feasibility of utilizing RNA as a saturable absorber in ultrafast laser systems with similar potential as DNA.
SCIENTIFIC REPORTS
(2023)
Article
Chemistry, Multidisciplinary
Duong Van Pham, Diep Van Nguyen, Tu Xuan Nguyen, Kieu Anh Thi Doan, Quan Minh Le, Minh Hong Pham, Marilou Cadatal-Raduban
Summary: This study investigates the nonlinear optical properties of fluoride host materials in the ultraviolet wavelength region, particularly focusing on the self-focusing effect. The results show that lithium calcium aluminum fluoride is an ideal host material for ultrashort pulse and ultrahigh-power laser generation.
APPLIED SCIENCES-BASEL
(2022)
Article
Optics
Zhibin Li, Ziye Wu, Zhuoqi Li, Liangxun Ou, Wenxiang Zhang, Zhicong Lai, Yu Zhang, Mengyuan Xie, Jieyuan Tang, Wenguo Zhu, Huadan Zheng, Yongchun Zhong, Xiong Deng, Xihua Zou, Zhe Chen, Jianhui Yu
Summary: Temperature sensing is crucial for human health monitoring. High-sensitivity fiber sensors often have long response times. However, a side-polished single-mode/hollow/single-mode fiber (SP-SHSF) structure has been proposed, which exhibits high sensitivity (4.223 nm/°C) with a compact length (1.6 mm) and ultrafast response (16 ms).
PHOTONICS RESEARCH
(2023)
Article
Mathematics
Elsayed M. E. Zayed, Khaled A. Gepreel, Mahmoud El-Horbaty, Anjan Biswas, Yakup Yildirim, Hashim M. Alshehri
Summary: This paper explores highly dispersive optical solitons in the complex Ginzburg-Landau equation with six forms of nonlinear refractive index structures for the first time. The enhanced version of the Kudryashov approach is used as the integration tool, leading to the emergence of bright and singular soliton solutions with their respective parameter constraints.
Article
Chemistry, Analytical
Kawsar Ahmed, Mohammed A. AlZain, Hasan Abdullah, Yanhua Luo, Dhasarathan Vigneswaran, Osama S. Faragallah, Mahmoud M. A. Eid, Ahmed Nabih Zaki Rashed
Summary: The study introduces a plasmonic material-coated C-PCF sensor based on SPR, offering high sensitivity for RI sensing within a specific wavelength range. The sensor, designed with a nano-ring gold layer and MgF2 coating, demonstrates excellent sensing performance in experiments.
Article
Crystallography
Chuan Tang, Mingjun Xia, Rukang Li
Summary: High-quality Rb4Li2TiOGe4O12 (RLTG) crystals were grown using the TSSG method, showing good transmittance in the infrared range. The refractive indices of the crystal were measured and it may have the potential for phase matching in the mid-IR range.
JOURNAL OF CRYSTAL GROWTH
(2021)
Article
Chemistry, Physical
Jingfang Zhou, Rukang Li
Summary: This study demonstrates for the first time that the previously ignored Sc3+ ion exhibits a second-order Jahn-Teller effect similar to asymmetric oxide-coordinated transition metal ions. The distorted octahedral ScO6 with Sc3+ ion in its d(0) electronic state unexpectedly enhances birefringence, and Ba3Sc2(BO3)(4) shows high transmittance and a large laser induced damage threshold.
Article
Chemistry, Multidisciplinary
Qian Wu, Chuan Tang, Fuan Liu, Zeliang Gao, Mingjun Xia, Xutang Tao, Rukang Li
Summary: This study measured the electromechanical properties of the Rb4Li2TiOGe4O12 crystal using the resonance technique, and found that it has a large piezoelectric constant, making it suitable for piezoelectric applications.
CRYSTAL GROWTH & DESIGN
(2022)
Article
Chemistry, Inorganic & Nuclear
Chuan Tang, Mingjun Xia, Rukang Li
Summary: A noncentrosymmetric salt-inclusion germanate, Rb10Li3Sc4Ge12O36F, has been grown through spontaneous crystallization from a LiF-RbF flux. It has a complex 3D framework composed of helical [Ge4O12] chains and [ScO6] octahedra, interconnected by Rb+ ions, Li+ ions, and [Rb3Li2F] clusters. The compound has a large band gap, a moderate powder second-harmonic-generation response, and an extremely small birefringence.
INORGANIC CHEMISTRY
(2022)
Article
Chemistry, Inorganic & Nuclear
Jingfang Zhou, Rukang Li
Summary: A proton-rich POM-type molybdenum phosphate compound with unique structure and characteristics was successfully synthesized and confirmed through various experimental methods.
INORGANIC CHEMISTRY
(2022)
Article
Optics
Rukang Li
Summary: In this study, the theoretical calculation using the CRYSTAL17 code was performed to characterize the optical properties of low symmetry borate crystals. The calculated results showed good agreement with experimental measurements, confirming the accuracy of the theoretical approach. The study highlighted the importance of theoretical calculations in advancing the development and application of low symmetry NLO materials.
JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS
(2022)
Article
Optics
Rukang Li
Summary: The ever-growing power of theoretical calculations has enabled accurate prediction of physical properties of condensed matter systems. In this Letter, it is demonstrated that the bandgaps, refractive indices, and nonlinear optical coefficients of recently discovered chalcogenides can be obtained with unprecedented accuracy using LCAO-type quantum chemistry calculations and CPKS method. These results provide a foundation for future applications of these materials under optimum conditions.
Article
Chemistry, Inorganic & Nuclear
Ziyan Lv, Rukang Li
Summary: Two new compounds K3TaP2O9 and Na3TaP2O9 with high transparency and desired properties have been synthesized and their structures have been determined. The compounds exhibit large band gap, moderate powder second-harmonic generation response, and birefringence.
INORGANIC CHEMISTRY
(2022)
Article
Chemistry, Inorganic & Nuclear
Qiaoxin Zhang, Rukang Li
Summary: A new sodium tantalum phosphate compound with a structure resembling tungsten bronzes has been successfully synthesized and characterized. It exhibits large hyperpolarizabilities and moderate second harmonic effect.
JOURNAL OF SOLID STATE CHEMISTRY
(2022)
Article
Physics, Condensed Matter
Rukang Li
Summary: The electronic structure and vibrational spectra of ferroelectric LiNbO3 crystal (LN) are calculated using the CRYSTAL program. The obtained results include the bandgap, refractive indices, and nonlinear optical coefficients. It is found that the phonon vibrations in LN are asymmetric along the polar axis and the calculated frequencies strongly depend on displacement parameters. The calculated vibrational frequencies agree well with the measured ones, except in a certain frequency range.
PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS
(2023)
Article
Materials Science, Multidisciplinary
Rukang Li
Summary: This paper investigates the electro-optic effects of barium borate, potassium titanyl phosphate, and rubidium titanyl phosphate crystals through ab initio calculations. The results show good agreement between the calculated electro-optic coefficients and experimental values, and the contribution of vibrational modes to the electro-optic effect is significant.
COMPUTATIONAL MATERIALS SCIENCE
(2023)
Article
Chemistry, Inorganic & Nuclear
Changqing Zhou, Rukang Li
Summary: The lone pair electrons in Bi(3+) result in a significant difference in second harmonic generation (SHG) response between Bi3TeBO9 and its isomorphic compound RE3TeBO9. However, compared to Bi3TeBO9, RE3TeBO9 exhibits a smaller SHG effect, which may be attributed to the misalignments and lack of distortions of the structural units [BO3], [TeO6], and [REO8] within the unit cell.
INORGANIC CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Changqing Zhou, Rukang Li
Summary: The newly obtained compound Gd3TeBO9 has a high Gd3+ concentration and a large magnetic entropy change, showing its potential for further development as a magnetocaloric material.
CHEMISTRY-A EUROPEAN JOURNAL
(2023)
Article
Chemistry, Inorganic & Nuclear
Ziyan Lv, Rukang Li
Summary: In this study, a tantalum phosphate crystal Na11Ta8P7O43 with a moderate second harmonic response was synthesized using self-fluxes method. The crystal was found to have unique structural features and moderate nonlinear effects. It exhibits phase-matchable second harmonic generation, a shorter cutoff edge than known materials LiTaO3 and KTiOPO4, and high transmittance in the visible to near infrared band, suggesting its potential as a nonlinear optical crystal.
DALTON TRANSACTIONS
(2023)
Article
Chemistry, Inorganic & Nuclear
Ziyan Lv, Rukang Li
Summary: In this study, a tantalum phosphate crystal with a moderate second harmonic response and unique structural features was successfully synthesized. It has the potential to serve as a nonlinear optical crystal.
DALTON TRANSACTIONS
(2023)
Article
Crystallography
Jianzheng Hu, Long Yan, Ning Zhou, Yao Chen, Xiaoni Yang, Lianqiao Yang, Shiping Guo
Summary: The effect and mechanism of carrier gas velocity, V/III ratio, and carrier gas velocity match on the growth rate of AlN were investigated in this study. The results showed that the growth rate of AlN initially increased with hydrogen flow rate, reached saturation, and then decreased monotonically. The turning point value depended on the equipment and process. By increasing the MO VM, the growth rate of AlN could be improved, but the uniformity deteriorated due to turbulence and loss of uniform boundary layer. High quality AlN films were successfully grown on nano-patterned sapphire substrates with improved crystalline quality and atomic smooth surfaces.
JOURNAL OF CRYSTAL GROWTH
(2024)
Article
Crystallography
Tingting Ma, Yang Li, Kangning Sun, Qinglin Cheng, Sen Li
Summary: This study investigates the melting process and nucleation behavior of sodium crystals using molecular dynamics simulation. The results show good agreement between simulated and experimental values for the melting temperature, density, and radial distribution function of sodium. The diffusion coefficient of liquid sodium increases linearly with temperature, and the homogeneous nucleation rate of melting in superheated sodium crystal exponentially increases with temperature. The findings provide theoretical support for applications involving heat and mass transfer in sodium-related systems.
JOURNAL OF CRYSTAL GROWTH
(2024)
Article
Crystallography
Hisato Nishii, Shintarou Iida, Akira Yamasaki, Takumi Ikenoue, Masao Miyake, Toshiya Doi, Tetsuji Hirato
Summary: Epitaxial V2O3 films were fabricated on sapphire substrates using mist chemical vapor deposition (mist CVD) method, eliminating the need for high vacuum conditions. The films can be grown on sapphire substrates even under atmospheric pressure, with the optimal growth temperature at 823 K. The films grown at 823 K exhibit a metal-insulator transition at approximately 155 K. The film on C-plane sapphire exhibits a lower transition temperature compared to those on R- and A-plane sapphire substrates.
JOURNAL OF CRYSTAL GROWTH
(2024)
Article
Crystallography
Jani Jesenovec, Kevin Zawilski, Peter Alison, Stephan J. Meschter, Sambit K. Saha, Andrew J. Sepelak, Peter G. Schunemann
Summary: In this study, NiSb needles were successfully formed in InSb by manipulating the growth rate and adding NiSb. These needle structures in InSb can be used to tune the magnetoresistance of devices. Additionally, undoped InSb crystals demonstrated good infrared transmission at low growth rates.
JOURNAL OF CRYSTAL GROWTH
(2024)
Article
Crystallography
D. Joseph Daniel, P. Karuppasamy, H. J. Kim
Summary: The 2-amino 4-methyl pyridinium oxalate (2A4MPO) compound was synthesized and its crystal structure, functional groups, thermal stability, electrical properties, and third-order nonlinear optical properties were studied. The results demonstrate that the synthesized crystal has good structural integrity, thermal stability, and potential for third-order nonlinear optical applications.
JOURNAL OF CRYSTAL GROWTH
(2024)
Article
Crystallography
C. W. Lan
Summary: The past two decades have witnessed a significant transformation in solar silicon crystal growth, especially in the competition between multi-crystalline silicon (Multi-Si) and mono-crystalline silicon (Mono-Si). The demand for this crucial material has exponentially surged, with silicon solar panels capturing over 95% of the global PV market share. The advancements in crystal growth technology during this period have set historical benchmarks, with the market share shifting from high-performance multi-crystalline silicon (HPM-Si) to CZ silicon.
JOURNAL OF CRYSTAL GROWTH
(2024)
Article
Crystallography
Peiyao Hao, Lili Zheng, Hui Zhang
Summary: A novel design of argon gas tube for removing impurities during silicon ingot growth was developed, and numerical simulations showed that it can effectively extract SiO.
JOURNAL OF CRYSTAL GROWTH
(2024)
Article
Crystallography
Geetika Sahu, Chanchal Chakraborty, Subhadeep Roy, Souri Banerjee
Summary: This article discusses the novel fractal nature of hydrothermally synthesized MoS2 QDs. By adjusting the reaction time, the study found that the average size of QDs increases and then decreases with longer reaction times. STEM images indicate that shorter reaction times lead to sheet formation, while extended reaction times cause sheets to fragment into QDs.
JOURNAL OF CRYSTAL GROWTH
(2024)
Article
Crystallography
Pengjian Lu, Wei Huang, Junjun Wang, Haitao Yang, Shiyue Guo, Bin Li, Ting Wang, Chitengfei Zhang, Rong Tu, Song Zhang
Summary: A systematic study on the tetramethylsilane-hydorgen (TMS-H-2) system for the deposition of pure single-crystal SiC by high-temperature chemical vapor deposition (HTCVD) method is conducted. The study investigates the effect of temperature, pressure, and H-2:TMS ratio on the deposition conditions and provides a theoretical basis and guidance for improving the quality and cost of industrial production of single-crystal SiC.
JOURNAL OF CRYSTAL GROWTH
(2024)
Article
Crystallography
Xinyu Jiang, Liangliang Liu, Yanqing Liu, Yan Wang, Zhaoping Hou
Summary: Investigation on the preparation of anisometric templated textured high entropy or multi-element doped ferroelectric ceramics was conducted using A-site disordered niobate microcrystals. The effects of process parameters on the morphology and chemical composition were studied, and the photocatalytic properties of the microcrystals were evaluated.
JOURNAL OF CRYSTAL GROWTH
(2024)
Article
Crystallography
Mobashsara Tabassum, Md. Ashraful Alam, Sabrina Mostofa, Raton Kumar Bishwas, Debasish Sarkar, Shirin Akter Jahan
Summary: In this study, high crystallinity copper nanoparticles were synthesized by altering the reaction medium at low temperatures. The results show that changing the reaction medium can reduce the surface energy of precursors and promote the formation of highly crystalline copper nanoparticles.
JOURNAL OF CRYSTAL GROWTH
(2024)
Article
Crystallography
Ivan Bodnar, Vitaly V. Khoroshko, Veronika A. Yashchuk, Valery F. Gremenok, Mohsin Kazi, Mayeen U. Khandaker, Tatiana I. Zubar, Daria I. Tishkevich, Alex Trukhanov, Sergei Trukhanov
Summary: This work presents the production of single crystals of Cu2ZnGeSe4, a semiconducting quaternary compound, using a gas chemical method with iodine as a transporter. The phase state, crystal structure, and lattice constants of the synthesized samples were refined and determined. The band gap of Cu2ZnGeSe4 was calculated using transmission spectrum and it was found that the band gap increases by 12% with decreasing temperature in the range of 20-300 K.
JOURNAL OF CRYSTAL GROWTH
(2024)
Article
Crystallography
Timur Malin, Igor Osinnykh, Vladimir Mansurov, Dmitriy Protasov, Sergey Ponomarev, Denis Milakhin, Konstantin Zhuravlev
Summary: The effect of growth temperature on the buffer leakage currents of GaN-on-Si layers was investigated. It was found that higher growth temperature results in lower leakage currents. The defects in GaN layers grown at different temperatures were studied using photoluminescence technique, and a correlation between leakage currents, structural perfection, and donor concentration in GaN-on-Si layers was established. It was also observed that reduced growth temperature leads to the formation of inversion domains.
JOURNAL OF CRYSTAL GROWTH
(2024)
Article
Crystallography
Thi-Hoai-Thu Nguyen, Jyh-Chen Chen
Summary: The effect of heater power control on heat, flow, and oxygen transport for CCz crystal growth was studied. Shorter upper side heater design could improve crystal quality and growth, but with higher power consumption.
JOURNAL OF CRYSTAL GROWTH
(2024)
Article
Crystallography
Peter Rudolph
Summary: This article presents an overview of selected contributions to the development of crystal growth technology by the Laudise Prize awardee 2023. It discusses various aspects such as shaped crystal growth, the correlation between melt structure and crystal quality, control of intrinsic defects and inclusions, prevention of dislocation cell patterns, and melt growth experiments under a travelling magnetic field.
JOURNAL OF CRYSTAL GROWTH
(2024)
