Results 91 to 100 of about 59,676 (341)

Low Loss in a Gas Filled Hollow Core Photonic crystal fiber

مجلة بغداد للعلوم, 2010
The work in this paper focuses on the experimental confirming of the losses in photonic crystal fibers (PCF) on the transmission of Q-switched Nd:YAG laser. First HC-PCF was evacuated to 0.1 mbar then the microstructure fiber (PCF) was filled with He gas
Baghdad Science Journal
doaj   +1 more source

Two-mode photonic crystal fibers

SPIE Proceedings, 2005
Index-guiding photonic crystal fibers with appropriate structural parameters support the fundamental and second order modes over a practically infinite wavelength range. The polarization principal axes and mode field patterns of the modes can be made stable by having different size air-holes along the orthogonal directions.
Jin, W, Wang, Z, Ju, J
openaire   +4 more sources

Highly efficient coupling to photonic crystal waveguides from optical fiber tapers [PDF]

, 2003
Nearly-complete mode-selective coupling from an optical fiber taper to a photonic crystal defect waveguide is demonstrated experimentally.
Barclay, Paul E., Borselli, Matthew, Painter, Oskar, Srinivasan, Kartik   +3 more
core  

Ultrastable Perovskite Encased in a Helical Cage for Tunable Full‐Color Mirror‐Image Circularly Polarized Luminescence

Advanced Functional Materials, EarlyView.
Develop full‐color colloidal perovskite nanocrystal (PNC) composites using a single organic halide precursor and enhance their stability and emission through zirconium hydrogen phosphate nanosheets (NSs). Achieve high photoluminescence efficiency and dual‐state circularly polarized luminescence (CPL) by embedding stabilized PNCs into a chiral polymer ...
Deblina Das, Youngsin Park, Sourav Mal, Kwangseuk Kyhm, Robert A. Taylor, Atanu Jana, Sangeun Cho   +6 more
wiley   +1 more source

Large Negative Flattened Dispersion over the S+C+L Band Using Highly Birefringent Photonic Crystal Fiber

, 2017
Novel triangular lattice photonic crystal fiber with a very large negative flattened dispersion over the S+C+L band, and very high birefringence is offered here.
Bala, Animesh, Chowdhury, Kanan Roy, Faisal, Mohammad, Mia, Md Borhan   +3 more
core   +1 more source

Cr3+‐Activated Tunable Near‐Infrared Mechanoluminescence Materials for Potential Water Pollutant Monitoring

Advanced Functional Materials, EarlyView.
Four kinds of magnetite type NIR‐ML materials are synthesized by high‐temperature solid‐state reaction method. The continuous spectral tuning from a sharp R line (698 nm) to a broadband range (650–1000 nm) is realized based on composite engineering, concentration engineering, and lattice engineering strategies.
Xuesong Wang, Yao Xiao, Puxian Xiong, Pan Zheng, Shengbing Xu, Wenzhao He, Haiqiang Fang, Pengzhe Wang, Jiayi Yu, Sheng Wu, Qi Qian   +10 more
wiley   +1 more source

Design and numerical analysis of microstructured-core octagonal photonic crystal fiber for sensing applications

Sensing and Bio-Sensing Research, 2016
This paper presents an octagonal photonic crystal fiber (O-PCF) for liquid sensing, in which both core and cladding are microstructured. Some propagation characteristics of proposed structure have been investigated by using the full vectorial finite ...
Kawsar Ahmed, Monir Morshed
doaj   +1 more source

Development of Photonic Crystal Fiber Based Gas/ Chemical Sensors

, 2018
The development of highly-sensitive and miniaturized sensors that capable of real-time analytes detection is highly desirable. Nowadays, toxic or colorless gas detection, air pollution monitoring, harmful chemical, pressure, strain, humidity, and ...
AA Rifat, AA Rifat, AA Rifat, BK Paul, Cándido Bariáin, D Ahuja, D Bykov, E Austin, G Amouzad Mahdiraji, G Whitenett, H Ademgil, H Ebendorff-Heidepriem, H Hamzaoui El, H Xuan, IE Araci, J Knight, J Park, J-M Brosi, J-P Berenger, Jeff Hecht, K Ahmed, K Ahmed, K Cui, K Fasihi, Kawsar Ahmed, KT Wan, L Alwis, M Arjmand, M Kaltenbrunner, M Pushkarsky, Md. Rabiul Hasan, Moutusi De, MR Hasan, MS Habib, NL Andrews, P Hu, Q Liu, R Hao, R. F. Cregan, S Asaduzzaman, S Asaduzzaman, S Das, S Gong, S Liu, S Olyaee, S Xu, SA Morin, SA Razzak, SK Mishra, SK Mishra, T Takeo, T Uno, TA Birks, W Ding, W Jin, Wee Lit Ng, X Feng, Y Al-Qazwini, Y Gao, Y Hou, Y Liu, Y Lu, Y Wang, Y Zhao, Y-H Chang   +64 more
core   +1 more source

Nanomaterial‐Integrated Fiber Neural Probes for Deep Brain Monitoring and Modulation: Challenges and Opportunities

Advanced Functional Materials, EarlyView.
The article presents nanomaterial‐integrated fiber neural probes as innovative tools for deep brain molecular sensing, neural stimulation, and temperature monitoring. It examines breakthroughs in SERS‐based biomolecule detection, thermoplasmonic activation, and luminescent thermometry, alongside strategies to overcome stability, specificity, and ...
Di Zheng, Yang Li, Muhammad Fayyaz Kashif, Linda Piscopo, Massimo De Vittorio, Ferruccio Pisanello   +5 more
wiley   +1 more source

Continuously wavelength-tunable high harmonic generation via soliton dynamics

, 2017
We report generation of high harmonics in a gas-jet pumped by pulses self-compressed in a He-filled hollow-core photonic crystal fiber through the soliton effect. The gas-jet is placed directly at the fiber output.
Frosz, Michael H., Russell, Philip St. J., Tani, Francesco, Travers, John C.   +3 more
core   +1 more source