Results 41 to 50 of about 2,028 (199)

Near-monochromatic high-harmonic radiation from relativistic laser–plasma interactions with blazed grating surfaces

New Journal of Physics, 2013
Intense, femtosecond laser interactions with blazed grating targets are studied through experiment and particle-in-cell (PIC) simulations. The high harmonic spectrum produced by the laser is angularly dispersed by the grating leading to near ...
M Yeung, B Dromey, C Rödel, J Bierbach, M Wünsche, G Paulus, T Hahn, D Hemmers, C Stelzmann, G Pretzler, M Zepf   +10 more
doaj   +1 more source

Dynamic of Grating Thermal Deformation on Beam Quality for Spectral Beam Combining

Frontiers in Physics, 2022
For spectral beam combining, an experimental system of dynamic beam quality caused by the thermal deformation of a grating has been designed and established.
Zhi-feng Deng, Sheng-bao Zhan, Ya Wang, Wen-ran Le, Shen-long Zha   +4 more
doaj   +1 more source

Free-Space Transmission and Detection of Variously Polarized Near-IR Beams Using Standard Communication Systems with Embedded Singular Phase Structures

Sensors, 2022
We propose to achieve multichannel information transmission in free space by means of variously polarized beams. The interaction of vortex beams of various orders with the main polarization states is theoretically analyzed.
Sergey V. Karpeev, Vladimir V. Podlipnov, Svetlana N. Khonina, Nikolay A. Ivliev, Sofia V. Ganchevskay   +4 more
doaj   +1 more source

Quantum‐Grade Nanodiamonds from a Single‐Step, Industrial‐Scale Pressure and Temperature Process

Advanced Functional Materials, EarlyView.
Novel method for creation of nitrogen‐vacancy centers in 50‐nm nanodiamonds based on high‐temperature plastic deformation is demonstrated. Compared to the electron irradiation approach, it yields nitrogen‐vacancy centers with significantly improved charge stability, T1 relaxation time, and optical Rabi contrast.
Yahua Bao, Michal Gulka, Parkarsh Kumar, Jakub Copak, Priyadharshini Balasubramanian, Yuliya Mindarava, Rémi Blinder, Michael Olney‐Fraser, Haotian Wen, Hana Spanielova, Helen Zhi Jie Zeng, Benjamin Whitefield, Igor Aharonovich, Jaroslav Hruby, Fedor Jelezko, J. Daniel Belnap, Shery L. Y. Chang, Petr Cigler   +17 more
wiley   +1 more source

High-SMSR wavelength-swept laser with a CL-band mode-hopping free tuning range

Frontiers in Physics, 2023
A high side-mode suppression ratio external-cavity wavelength-swept laser system with a wide mode-hopping free tuning range is developed. The proposed wavelength-swept laser is based on a single-angled facet gain chip in a classical Littman-Metcalf ...
Shan Qiao, Liwen Sheng, Liwen Sheng, Liwen Sheng, Lin Huang, Lin Huang, Lin Huang, Aiguo Zhang, Yu Wei, Zhiming Liu, Junwei Ju, Zhihui Zhang, Bingqi Yin, Peng Li, Jilei Han, Yiqi Zhang, Tianyang Qu   +16 more
doaj   +1 more source

Polarization insensitive blazed diffraction gratings

Journal of the European Optical Society-Rapid Publications, 2006
Gratings insensitive to light polarization may be useful in many areas of optical engineering, particularly in light demultiplexing application. We study different kinds of binary gratings able to present reflected efficiencies higher than 98% in the –1st order.
Bonod, Nicolas, Popov, E., Enoch, Stefan, Neauport, Jérôme   +3 more
openaire   +4 more sources

Programmable Dimensional Lithography with Digital Micromirror Devices for Multifunctional Microarchitectures

Advanced Materials Technologies, EarlyView.
This review explores recent advances in digital micromirror device (DMD)‐based lithography, focusing on its programmable light modulation, multi‐material compatibility, and dimensional patterning strategies. It highlights innovations from optical system design to materials integration and multifunctional applications, positioning DMD lithography as a ...
Yubin Lee, Byungcheon Yoo, Chaeyeong Ryu, Jongwon Oh, Dahye Baek, Jiseok Lee   +5 more
wiley   +1 more source

Modeling and Improving Geometric Accuracy in Projection Multiphoton Lithography

Advanced Optical Materials, EarlyView.
A numerical framework describing the optical and photochemical processes is developed to elucidate the origins of geometric deviations in projection multiphoton lithography. The results indicate that oxygen diffusion and inhibition, and DMD diffraction, lead to geometric distortions.
Anwarul Islam Akash, Jason E. Johnson, Xianfan Xu   +2 more
wiley   +1 more source

Tunable Axicons Generated by Spatial Light Modulator with High-Level Phase Computer-Generated Holograms

Applied Sciences, 2020
Axicon is an interesting optical element for its optical properties. This paper presents an approach to dynamically generated tunable axicons with a spatial light modulator (SLM).
Zhongsheng Zhai, Zhuang Cheng, Qinghua Lv, Xuanze Wang   +3 more
doaj   +1 more source

Manipulation of Emergent Collective Excitations via Composition Control in Mixed MPX3 Correlated 2D Antiferromagnets

Advanced Science, EarlyView.
Transition metal and chalcogen substituents are introduced into 2D antiferromagnet, NiPS3, and comprehensive photoluminescence and Raman spectroscopy studies are conducted to investigate how spin orbit entangled exciton and two magnon scattering evolve as functions of substituent concentration.
Cong Tai Trinh, Na Liu, Rabindra Basnet, Dinesh Upreti, Rijan Karkee, Vigneshwaran Chandrasekaran, Andrew C. Jones, Michael T. Pettes, Thuc T. Mai, Michael A. Susner, Jin Hu, Rahul Rao, Han Htoon   +12 more
wiley   +1 more source