Results 31 to 40 of about 26,812 (315)

Lithium Niobate-Based Integrated Photonics Utilizing Photorefractive Effect

Communications, 2017
Lithium niobate (LiNbO3) is an ideal material with many interesting properties for integrated photonics. Despite the rich set of properties the technology of lithium niobate integrated optics has not evolved as much as integrated optics in III-V ...
Norbert Tarjanyi, Daniel Kacik
doaj   +1 more source

Thermal and mechanical stability enhancement of a 635 nm Littman-type external cavity diode laser

Frontiers in Physics
Precise wavelength control in Littman-type external cavity diode laser (ECDL) is crucial for high-resolution spectroscopy and metrology, yet their stability is often limited by thermo-mechanical perturbations.
Maolei Zhang, Maolei Zhang, Jinlian Chen, Yong Wang, Yong Wang, Xiaofeng Wang, Xiaofeng Wang, Hongpeng Wu, Hongpeng Wu, Fang Dong, Lei Dong, Lei Dong   +11 more
doaj   +1 more source

Broadband high-efficiency near-infrared graphene phase modulators enabled by metal–nanoribbon integrated hybrid plasmonic waveguides

Nanophotonics, 2021
The phase modulator is a key component in optical communications for its phase modulation functions. In this paper, we numerically demonstrate a variety of ultra-compact high-efficiency graphene phase modulators (GPMs) based on metal–nanoribbon ...
Ye Longfang, Yuan Kouxiang, Zhu Chunhui, Zhang Yao, Zhang Yong, Lai Kunzhong   +5 more
doaj   +1 more source

In situ loss measurement of direct UV written waveguides using integrated Bragg gratings [PDF]

, 2010
The propagation loss of a direct UV-written silica-on-silicon waveguide is measured using an elegant nondestructive method. The technique uses integrated Bragg grating structures, which are observed from opposing launch directions to obtain information ...
Rogers, H.L., Smith, P.G.R., Sumiaty Ambran, Ambran, S., James C. Gates, Christopher Holmes, Holmes, C., Gates, J.C., Helen L. Rogers, Peter G. R. Smith   +9 more
core   +1 more source

Towards standardization of compact data center switches

ICT Express, 2017
Data Centers, the essential infrastructure for the increasing amount of cloud applications, are required to expand in number of devices even further. However, the scaling is limited by both space and power constraints. It is therefore essential to shrink
Gonzalo Guelbenzu, Nicola Calabretta, Oded Raz   +2 more
doaj   +1 more source

Phosphorene-assisted silicon photonic modulator with fast response time

Nanophotonics, 2020
All-optical modulators avoid the conversion from external electronic signals to optical signals and thus have the potential to achieve an energy-efficient high-speed photonic system.
Cheng Zhao, Cao Rui, Guo Jia, Yao Yuhan, Wei Kangkang, Gao Shan, Wang Yunzheng, Dong Jianji, Zhang Han   +8 more
doaj   +1 more source

Guidelines for Pediatric Radiotherapy Simulation: A Report From the Children's Oncology Group Radiation Oncology Discipline

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Pediatric radiation therapy presents unique challenges compared to adult treatments, including those of immobilization, potential need for sedation, and the critical importance of accurate, reproducible positioning. Additionally, heightened attention to imaging doses is necessary to minimize long‐term toxicity in survivors.
Parham Alaei, Stephen Mihalcik, Sujith Baliga, Young Kwok, Dana Casey, Eric Ehler, Christiane Burton, John C. Breneman, Daphne A. Haas‐Kogan, Suzanne L. Wolden, Arnold C. Paulino, Nadia N. Laack, Natia Esiashvili, Sarah Milgrom, Christine Hill‐Kayser, Thomas J. Fitzgerald, John A. Kalapurakal, Chia‐Ho Hua   +17 more
wiley   +1 more source

Integrated microlenses and multimode interference devices for microflow cytometers [PDF]

, 2010
The convergence of microfabrication technologies, novel materials systems, and techniques for chemical and biochemical analysis is enabling the realisation of lab-on-a-chip technology.
Hunt, Hamish C, Hunt, Hamish C.
core  

Nanophotonic integrated lasers [PDF]

, 2022
Art. 64750ZThe unique optical properties of photonic crystals allow a dense and simple integration of optical functionality on a small footprint. We have investigated the integration of tunable photonic crystal (PhC) lasers with a wavelength monitor. The
Duan, G.-H., Forchel, A., Heidrich, H., Brenot, R., Janiak, K., Scherer, H., Benisty, H., Kamp, M.   +7 more
core   +1 more source

Enhanced Sensitivity of Silicon-Photonics-Based Ultrasound Detection via BCB Coating

IEEE Photonics Journal, 2019
Ultrasound detection via silicon waveguides relies on the ability of acoustic waves to modulate the effective refractive index of the guided modes. However, the low photo-elastic response of silicon and silica limits the sensitivity of conventional ...
Resmi Ravi Kumar, Evgeny Hahamovich, Shai Tsesses, Yoav Hazan, Assaf Grinberg, Amir Rosenthal   +5 more
doaj   +1 more source