Article
Physics, Multidisciplinary
Aakash Warke, Krishna Thyagarajan
Summary: In this paper, we discuss the generation of a two-pair frequency entangled state using type-0 spontaneous parametric down-conversion process in a dual periodically poled lithium niobate waveguide. By suitable domain engineering and quasi-phase matching grating, it is possible to achieve a frequency entangled state with two different pairs of frequencies, as demonstrated by numerical simulations. Moreover, the proposed scheme has potential applications in creating efficient photonic setups for quantum communication systems and exploring various entangled states.
EUROPEAN PHYSICAL JOURNAL PLUS
(2022)
Article
Nanoscience & Nanotechnology
Hongcheng Gu, Xiaojiang Liu, Zhongde Mu, Qiong Wang, Haibo Ding, Xin Du, Zhongze Gu
Summary: Two-photon polymerization (TPP) with interference assistance allows for precise control of coloration, producing biomimetic structural colors inspired by Morph butterflies. The technology has been systematically studied for coloration mechanisms and can be widely used in applications such as displays, decoration, and sensing.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Materials Science, Ceramics
R. Oven
Summary: The study extended an analytical model of electric field assisted diffusion to include two indigenous mobile ion species uniformly distributed within the glass. A quasi-stationary state solution was presented, applicable when invasive ions have lower mobility, showing good agreement with numerical solutions. The model accurately modeled the increase in concentration of the indigenous species with lower mobility over time.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2021)
Article
Optics
Gaurav Shukla, Dariya Salykina, Gaetano Frascella, Devendra Kumar Mishra, Maria Chekhova, Farit Ya Khalili
Summary: In this theoretical study, we investigate the possibility of broadening the phase range of sub-shot-noise sensitivity in a squeezing-enhanced linear interferometer by implementing detection in both output ports and optimizing the combination of detector outputs. This modification allows the interferometer to maintain phase sensitivity independent of the operation point and remain unaffected by laser technical noise, similar to the standard dark port regime. Additionally, by using phase-sensitive amplifiers before each detector, the sensitivity can also tolerate detection loss.
Article
Chemistry, Organic
Biswajit Roy, Samrat Roy, Moumita Kundu, Somnath Maji, Bipul Pal, Mahitosh Mandal, N. D. Pradeep Singh
Summary: This study demonstrates that the two-photon absorption cross-section can be enhanced and red-shifted to the near-infrared region through the ground-state proton-transfer process, without the need for any chemical modification. A simple binol-based aggregation-induced emission-fluorogenic phototrigger was developed using this process, showing potential for the release of anticancer drugs in the NIR region.
Article
Engineering, Manufacturing
Chun Cao, Jianting Liu, Xianmeng Xia, Xiaoming Shen, Yiwei Qiu, Cuifang Kuang, Xu Liu
Summary: In this study, an organic-inorganic hybrid photoresist with high photosensitivity was successfully prepared by incorporating curable zirconia nanoclusters and click-chemistry. The photoresist exhibited a significantly enhanced maximum lithography speed and a distinguishable minimum feature size, providing an alternative strategy for ultra-fast 2D TPL.
ADDITIVE MANUFACTURING
(2022)
Article
Engineering, Manufacturing
Ketki M. Lichade, Yayue Pan
Summary: This study successfully integrates acoustic patterning with the TPP process to print nanoparticle-polymer composite microstructures with spatially varied nanoparticle compositions. Experimental results validate the feasibility of the developed acoustic field-assisted TPP process for printing anisotropic composites with spatially controlled material compositions.
JOURNAL OF MANUFACTURING SCIENCE AND ENGINEERING-TRANSACTIONS OF THE ASME
(2021)
Article
Engineering, Manufacturing
Aykut Aksit, Anil K. Lalwani, Jeffrey W. Kysar, Alan C. West
Summary: The hybrid additive methodology of twophoton templated electrodeposition (2PTE) allows for the fabrication of fully metallic micrometer-scale 3D architectures with complex geometries, such as microneedles, for precision surgical applications. However, challenges arise from electrochemical deposition of metals into thick 3D lithography patterns, leading to potential and chemical gradients that affect design limitations. Numerical modeling serves as a design tool to predict growth and explore geometric constraints of manufacturing complicated 3D metallic structures through the 2PTE method.
JOURNAL OF MANUFACTURING PROCESSES
(2021)
Article
Engineering, Manufacturing
Emilia Wdowiak, Michal Ziemczonok, Juan Martinez-Carranza, Arkadiusz Kus
Summary: Two-photon polymerization (TPP) is a 3D-printing technique that allows fabrication of structures at submicrometer scale. A novel multi-material TPP procedure is introduced in this paper, which uses the transport of intensity equation phase imaging method for alignment purposes. The proposed method utilizes existing hardware in TPP setups, providing a complete and cost-free solution for multi-material fabrication.
ADDITIVE MANUFACTURING
(2023)
Article
Astronomy & Astrophysics
Qian Zhao, Yan-Xi Wu, Mamutjan Ababekri, Zhong-Peng Li, Liang Tang, Jian-Xing Li
Summary: The advent of laser-driven high-intensity gamma-photon beams has opened up new opportunities for designing advanced photon-photon colliders. In our recent work, we investigated the polarization characteristics of linear Breit-Wheeler pair production in circularly-polarized gamma-photon collisions. By using a new spin basis for positrons and electrons, we were able to decouple the transverse and longitudinal spin components, and found that the linear polarization of photon can induce highly angle-dependent pair yield and polarization distributions.
Article
Biophysics
Da Liu, Xiao-Ming Sun, Lian Zhu, Cheng-Yu Li
Summary: Based on the precise identification of target nucleic acids and the trans-cleavage feature of CRISPR/Cas12a system, a new design approach for fluorescence biosensors is proposed to improve sensing accuracy and design flexibility. The study overcomes the limitations of current concepts in terms of sensitivity, applicability to complex samples, and detection species. The newly-established CRISPR/Cas12a-mediated fluorescence biosensor demonstrates favorable assay performance and has potential applications in disease diagnosis and environmental analysis, promoting the development of CRISPR system in the field of biosensing.
BIOSENSORS & BIOELECTRONICS
(2023)
Article
Engineering, Manufacturing
Ketki M. Lichade, Shan Hu, Yayue Pan
Summary: A new microfabrication strategy, acoustic streaming-assisted two-photon polymerization (AS-TPP), was proposed for fabricating miniaturized devices with locally-controlled multimaterial patterns. The AS-TPP technique utilizes acoustic streaming integrated with TPP to pattern hydrophilic nanoparticles with micro/nanoscale resolutions within a hydrophobic polymer. Experimental results validate the high-resolution multimaterial manufacturing capability of the AS-TPP process and its potential applications in microfluidics, surface engineering, and biomedical engineering.
ADDITIVE MANUFACTURING
(2023)
Article
Polymer Science
Martyna Durko-Maciag, Gilles Ulrich, Julien Massue, Jaroslaw Mysliwiec, Konrad Cyprych
Summary: This work demonstrates the successful application of Excited-State Intramolecular Proton Transfer (ESIPT) fluorophores as photoinitiators for microfabrication. The influence of chemical structure on this application was investigated, followed by analysis of two-photon polymerization. The study determined the quality of fabricated structures and polymerization thresholds, with one of the chromophores having an impressively low value of 11 nJ.
EUROPEAN POLYMER JOURNAL
(2023)
Article
Nanoscience & Nanotechnology
Qiangzhong Wang, Faxin Li
Summary: By utilizing two-dimensional periodically orthogonal poling, the domain structure of Lead Zirconate Titanate (PZT) ceramics was tailored to control the thermal expansion coefficient, which can find wide applications in fields such as thin film fabrication and electronic packaging.
SCRIPTA MATERIALIA
(2021)
Review
Polymer Science
Subramaniyan Ramasundaram, Sivasangu Sobha, Gurusamy Saravanakumar, Tae Hwan Oh
Summary: Polymers are carriers used for delivering therapeutic drugs and imaging probes to specific target sites. With appropriate targeting moieties, these carriers can achieve target-specific delivery at the cellular level. Recent attention has been focused on two-photon absorption (2PA)-mediated drug delivery and imaging, which offers better biocompatibility and treatment effects.
