Article
Physics, Multidisciplinary
Monika Barala, Shivaraj R. Maidur, Devendra Mohan, Sujata Sanghi
Summary: This study focuses on the preparation of Polystyrene (PS) and PS/ZnO nanocomposite foils and investigates their structural and nonlinear optical (NLO) properties. The results show that the nanocomposite foils are transparent in the visible region and exhibit good nonlinear absorption and refractive index characteristics. The optical power limiting threshold calculation for 8 wt% of PS/ZnO nanocomposite foil suggests its suitability for optical limiting and optical switching applications.
Article
Chemistry, Applied
Yuehua Yuan, Wenfa Zhou, Yongjun Zhu, Maozhong Tian, Yutao Zheng, Zefeng Shi, Feng Feng, Yinglin Song
Summary: Two novel ethyne-linked polymers (P1 and P2) were synthesized and their nonlinear optical properties were investigated. The results showed that both polymers exhibit reverse saturable absorption and self-defocusing, with two photon absorption being the dominant nonlinear absorption mechanism. Additionally, the polymers also display negative excited-state refraction.
Article
Chemistry, Physical
Marta Gordel-Wojcik, Magdalena Malik, Agnieszka Siomra, Marek Samoc, Marcin Nyk
Summary: In this study, wide spectral measurements of the nonlinear optical properties of silver sulfide quantum dots in aqueous solutions were conducted using the Z-scan technique. The relationship between the properties of the quantum dots and the variation of the material that covers their surface was also evaluated. The study identified various nonlinear optical effects, including two-photon absorption and nonlinear refraction.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2023)
Article
Optics
Albert S. Reyna, Cid B. de Araujo
Summary: Various nonlinear optical phenomena observed in liquid suspensions of metal nanoparticles and metal nanoclusters have attracted significant attention. These phenomena, such as multiphoton absorption and optical solitons, have been studied in soft-matter systems, resulting in new discoveries and support for theoretical predictions. Colloids containing noble-metal nanoparticles and nanoclusters exhibit outstanding nonlinear optical responses and have been used to study different phenomena and applications. The effective high-order nonlinearities of metal colloids have been investigated using appropriate methodologies for different sizes and morphologies of metal nanostructures. A nonlinearity management procedure has also been discussed to control the nonlinear optical response of metal colloids. Various phenomena associated with effective high-order nonlinearities have been explored, including self-action effects, saturated multiphoton absorption, and spatial solitons.
Article
Chemistry, Applied
Somdatta Bhattacharya, Govind Reddy, Sneha Paul, Sk Saddam Hossain, Sai Santosh Kumar Raavi, Lingamallu Giribabu, Anunay Samanta, Venugopal Rao Soma
Summary: Two novel phenanthro [9,10-d]imidazole substituted metal phthalocyanines, ImCuPc and ImZnPc, were synthesized and investigated as photosensitizers through various spectroscopic studies, with ImCuPc showing better potential as a photosensitizer compared to ImZnPc.
Article
Physics, Condensed Matter
Imran Ahmad Salmani, Mohd. Shahid Khan, Javid Ali, Aurangzeb Khurram Hafiz, Mohd Mehkoom, S. M. Afzal, Mohd Saleem Khan
Summary: This study examines the multiferroic and nonlinear optical properties of pristine and Yttrium (Y3+) substituted BiFeO3 nanoparticles synthesized by sol-gel technique, as well as the thin films of these nanoparticles. Various techniques, including XRD, Fullprof, XPS, AFM, FESEM, and TEM with SAED, were used to study the structure and morphology of the nanoparticles. The doping of Y3+ ions in the nanoparticles significantly modified and improved their optical, structural, and multiferroic properties. The linear optical properties were characterized using UV-Visible, Raman, and Photoluminescence techniques, while the third-order nonlinear absorption coefficient and third-order susceptibility were investigated using a single beam Z-scan technique. The films exhibited saturation absorption behavior, which increased with increasing Yttrium (Y3+) substitution in BiFeO3, making them promising materials for optoelectronic devices.
PHYSICA B-CONDENSED MATTER
(2023)
Article
Materials Science, Multidisciplinary
Srinivasa Rao Konda, Venugopal Rao Soma, Rashid A. Ganeev, Murali Banavoth, Ravi Ketavath, Wei Li
Summary: This study demonstrates the influence of nickel doping on the nonlinear optical properties of CsPbBr3 nanocrystals. Nickel doping significantly modifies the nonlinear absorption mechanism and decreases the refractive index. Nickel doping also increases the harmonic yield.
JOURNAL OF MATERIALS SCIENCE
(2022)
Article
Materials Science, Multidisciplinary
P. Divya, R. Annie Sujatha, N. Angeline Little Flower, G. Vinitha, K. Mani Rahulan
Summary: In this study, Cr3+ doped PbWO4 nanoparticles with different concentrations of Cr3+ were synthesized using a chemical method. The structural, morphological, and optical properties of the nanoparticles were characterized using various techniques. The results showed that the optical properties of the nanoparticles were altered by the Cr3+ doping, indicating their potential applications in optical devices.
Article
Engineering, Electrical & Electronic
R. A. Sharath, K. Mani Rahulan, N. Angeline Little Flower, R. Annie Sujatha, G. Vinitha, L. Reshma Rajeev, Tandrima Saha, D. Prakashbabu
Summary: The third order nonlinear optical properties of Er3+-doped BaMoO4 nanostructures were investigated, showing that the addition of Er can significantly enhance the nonlinear absorption coefficient and refractive index of the nanostructures, making them potentially useful for nonlinear optical device applications.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2022)
Article
Engineering, Electrical & Electronic
R. A. Sharath, K. Mani Rahulan, N. Angeline Little Flower, R. Annie Sujatha, G. Vinitha, L. Reshma Rajeev, Tandrima Saha, D. Prakashbabu
Summary: Through doping Er ions, the third order nonlinear optical properties of BaMoO4 nanostructures can be significantly enhanced, increasing light absorption in the visible region and showing potential for applications in nonlinear optical devices.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2022)
Article
Materials Science, Multidisciplinary
Yasemin Gundogdu, Musa Cadirci, Hamdi Sukur Kilic, Erdem Elibol
Summary: This work successfully synthesized and characterized CuLaSe2 and ZnCuLaSe2 quantum dots, which are crucial for nonlinear optics applications due to their high two-photon absorption coefficients in the near-infrared region. The third-order nonlinear optical properties of these materials were studied using the femtosecond Z-scan method, and the nonlinear absorption coefficient (β), nonlinear refractive index (n2), and third-order nonlinear susceptibility (χ(3)) values were deduced and extensively discussed for all samples. The reported results pave the way for the development of CuLaSe2 and ZnCuLaSe2 quantum dots-based nonlinear photoelectric devices operating in the near-infrared field.
Article
Nanoscience & Nanotechnology
Zheng-Tao Zhang, Qi-Qi Yang, Xiao-Juan Zhen, Zhan-Zu Feng, Xin-Ping Zhai, Xiao-Dong Zhang, Yi-Fan Huang, Qiang Wang, Hao-Li Zhang
Summary: This study evaluated the performance of 2D bismuthene for space applications under simulated radiation environment, revealing slight impact on its nonlinear optical properties, making it suitable for space mode-locking applications.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Materials Science, Multidisciplinary
Noolu Srinivasa Manikanta Viswanath, Jeong Bin Cho, Hye Ryung Byun, Joo Hyeong Han, Sanjith Unithrattil, Joon Ik Jang, Kang Min Ok, Won Bin Im
Summary: A series of silicate materials with noncentrosymmetric structures were successfully synthesized via a microwave-assisted solid-state reaction, showing interesting second- and third-harmonic generation properties. These materials also exhibit good chemical stability compared to traditional materials and have the potential to stimulate new scientific research fields in upconversion luminescence.
ADVANCED OPTICAL MATERIALS
(2021)
Article
Chemistry, Physical
Aya M. Abu Baker, Ganjaboy S. Boltaev, Mazhar Iqbal, Mikhail Pylnev, Nasser M. Hamdan, Ali S. Alnaser
Summary: This work presents a systematic study on the ultrafast third-order nonlinear optical processes in mixed perovskite nanocrystals, demonstrating their strong nonlinear optical responses and their potential applications in photonics and optical communications. The study explores the generation of third harmonic radiation and giant two-photon absorption-based photoluminescence in the nanocrystals.
Article
Physics, Applied
Ruiqin Huang, Enze Kang, Han Gao, Renbo Guo, Qingsong Hu, Yibo Han
Summary: CsPbBr3 nanoplatelets exhibit large optical nonlinearity, including third-order nonlinear absorption, refraction, and two-photon absorption excited luminescence. The nonlinear absorption cross section is two orders of magnitude larger than that of CsPbBr3 nanocrystals, making them suitable for optical limiting. Furthermore, they show large self-phase modulation-induced nonlinear refraction, allowing for optical switching.
APPLIED PHYSICS LETTERS
(2022)
Article
Optics
Hang Dong, Zhixin Sun, Jingyi Li, Yahui Li, Wei Zhang, Guangyong Jin
Summary: This paper calculates thermal stresses and adsorption forces to determine laser cleaning conditions and establishes relevant models. Experimental results show that the removal effect is better with increasing nanosecond pulse delay, with the best effect achieved at 600 milliseconds pulse delay. Based on the findings, the mechanisms of oxide film removal involve thermal stress against adsorption and plasma shock wave breaking the oxide layer.
OPTICS COMMUNICATIONS
(2024)
Article
Optics
Junjie Zhang, Wenjun Li, Bingtao Li, Zheng-Da Hu, Jicheng Wang, Feng Zhang, Lei Wang
Summary: A multilayer thin film device structure based on Tamm plasmons is proposed for high-performance near-infrared hot electron photodetectors. By optimizing the device structure parameters, high responsivity detection can be achieved.
OPTICS COMMUNICATIONS
(2024)
Article
Optics
Hong Huang, Zhiguang Han
Summary: This paper proposes a new ghost imaging reconstruction method using ordered orthogonal Hadamard derived speckle as the illumination speckle series, and introduces the alternating direction multiplier method to improve the imaging performance. The evaluation results show that the method can achieve high-quality reconstructed images under low sampling conditions.
OPTICS COMMUNICATIONS
(2024)
Article
Optics
Moritsugu Sakamoto, Yuki Ono, Kohei Noda, Tomoyuki Sasaki, Nobuhiro Kawatsuki, Masayuki Tanaka, Hiroshi Ono
Summary: The effect of wavelength and polarization of illuminating light in polarization imaging for birefringent objects placed behind a scattering structure was experimentally investigated. The result shows that the spatial distribution of the birefringent object was more clearly visualized in the longer wavelength combined with circularly polarized light illumination. This finding indicates the potential of using polarization imaging with circularly polarized light illumination in the near-infrared range for visualizing birefringent objects with scattering.
OPTICS COMMUNICATIONS
(2024)
Article
Optics
Peihui Du, Hongfang Wang, Pengwei Li, Rukeyemuhan Abadula, Hmbat Batelbek, Min Gao
Summary: In this study, we theoretically demonstrate the strong coupling between Tamm plasmons and exciton polaritons in metal Al/DBR-molecular structures, extending the operating wavelength to the deep ultraviolet region. The coupling strength can be effectively manipulated by adjusting the structure parameters, offering potential benefits for the development of new-style optical filters.
OPTICS COMMUNICATIONS
(2024)
Article
Optics
Priyanka Chaudhary, Akhilesh Kumar Mishra
Summary: We design and numerically investigate the switching dynamics between two outer waveguides in a parity-time (PT)-symmetric adiabatically coupled three waveguides nonlinear directional coupler (NLDC) system. The study shows that the device can provide switching even when the middle waveguide is nonlinear and the outer waveguides are linear. Furthermore, the effect of loss to gain ratio on critical switching power and the impact of launched light power and gain (loss) value on transmitted power are also studied.
OPTICS COMMUNICATIONS
(2024)
Article
Optics
Wei Feng, Yongcong Yi, Shuyang Li, Zhi Xiong, Boya Xie, Zhen Zeng
Summary: Traditional imaging techniques are ineffective in achieving clear underwater imaging due to the presence of scattering media. Single-pixel imaging (SPI) system based on Unet++ offers a solution for reconstructing high-quality images in highly turbid water environments.
OPTICS COMMUNICATIONS
(2024)
Article
Optics
Xiaorui Qu, Jufeng Zhao, Haijun Tian, Junjie Zhu, Guangmang Cui
Summary: This paper studies the structural similarity between RGB and spectral images and proposes a non-iterative Images Structure Similarity (ISS) method for fast reconstruction of spectral images. Additionally, the input of the Deep Image Prior (DIP) method is optimized for the first time by using the initial spectral data reconstructed by ISS, leading to an improved starting value for the iteration. The experimental results show that the proposed method can enhance the reconstruction quality in both spectral and spatial resolutions, while significantly reducing the reconstruction time compared to other DIP-based methods.
OPTICS COMMUNICATIONS
(2024)
Article
Optics
Donghe Sheng, Zhe Han, Zanyang Qiao, Tianpei Dong, Chenxi Wang, Huiping Tian
Summary: In this study, a distributed multi-parameter sensor based on an etched few-mode multi-core fiber is proposed, allowing simultaneous sensing of temperature, strain, and sample refractive index. By combining space division multiplexing and stimulated Brillouin scattering, the sensor achieves high sensitivity in detecting these parameters.
OPTICS COMMUNICATIONS
(2024)
Article
Optics
Dehao Chen, Zhenwu Mo, Zehong Liang, Junjie Jiang, Huilin Tang, Yidan Sun, Ziyu Wang, Quanfeng Wei, Yanru Chen, Dongmei Deng
Summary: In this study, a novel family of elliptical Airyprime vortex beams (EAPVBs) is introduced, which inherits the excellent self-focusing properties of the circular Airyprime vortex beam (CAPVB). The asymmetric focusing of EAPVB leads to some novel properties, such as the splitting of high-order optical vortex and the formation of two foci. By taking advantage of these properties, EAPVB is constructed as a tunable optical bottle for particle capture.
OPTICS COMMUNICATIONS
(2024)
Article
Optics
Xiao Ma, Qiongchan Shao, Jian-Jun He
Summary: In this study, an SHS chip based on Su8 waveguide was designed and fabricated. By physically adjusting the metal electrodes and compensating for transmissivity fluctuations, the generation of side ripples was successfully suppressed.
OPTICS COMMUNICATIONS
(2024)
Article
Optics
Hongbin Zhang, Jiansen Du, Zongtao Chi, Hailin Cong, Bin Wang
Summary: In this paper, a novel type of dual-wavelength confocal metalens is proposed to solve the spatial crosstalk between two wavelengths. The metalens can greatly reduce the spatial crosstalk and achieve high precision and efficiency in confocal imaging. It can also focus light in specific wavelength ranges, making it suitable for imaging, microscopy, and optical fiber communication.
OPTICS COMMUNICATIONS
(2024)
Article
Optics
Rui Qiu, Guanmao Zhang, Shaokai Du, Jie Liu, Hongyu Jib, Kaiyun Bi, Bochuan Xing, Guangchao Diao
Summary: Recent research has developed an achromatic metalens that shows potential for replacing traditional lenses. This study focuses on a continuously variable focus height broadband achromatic metalens for long-wavelength infrared applications. By optimizing materials and parameters, chromatic aberration is effectively corrected, making it suitable for high-resolution LWIR imaging and spectroscopy systems.
OPTICS COMMUNICATIONS
(2024)
Article
Optics
Marcos Troncoso-Costas, Gaurav Jain, Yiming Li, Mohammed Patel, Lakshmi Narayanan Venkatasubramani, Sean O'Duill, Frank Smyth, Andrew Ellis, Francisco Diaz-Otero, Colm Browning, Liam Barry
Summary: In this work, a fast-switching tuneable laser capable of wide wavelength coverage, low noise and linewidth levels suitable for high-order modulation formats is demonstrated. The laser is characterized to cover a wavelength range of 35 nm in the C-band with nanosecond switching time. It is used to successfully demonstrate 480 Gbit/s 16QAM transmission over 25 km of single-mode fiber for a wavelength range of 19 nm.
OPTICS COMMUNICATIONS
(2024)
Article
Optics
Takeshi Moriyasu, Masahiko Tani, Hideaki Kitahara, Takashi Furuya, Jessica Afalla, Toshiro Kohmoto, Daishiro Koide, Hiroki Sato, Mitsutaka Kumakura
Summary: Optical pump-terahertz probe spectroscopy was used to study the photocarrier dynamics and optical characteristics of semiconductor Si. The results showed that the thickness of Si influenced the transmitted terahertz field amplitude and peak delay time, indicating differences in photocarrier dynamics between different Si materials.
OPTICS COMMUNICATIONS
(2024)