Results 41 to 50 of about 558,952 (106)

Comb Filter Saw-Resonator Traveling Wave

Electronic and Acoustic Engineering, 2020
Owing to the use of surface acoustic waves, the frequency range of this type of filter is expanded to the high frequency range and can reach several gigahertz. To implement filters on surface waves, piezoelectrics like a quartz plate are used.
Oleksandr O. Ihnatenko, Yurii A. Hramarchuk, L. Pysarenko   +2 more
semanticscholar   +1 more source

Comb

, 2022
2009CA7127_jpg_l. This is an Anglo-Saxon comb probably made in the 8th - 9th century. This comb is in bone with a single row of teeth, the top arched and terminating in recurved dragon heads.
Woruldhord Project Team (14251345)
core   +1 more source

Trace Element Geochemistry in Quartz in the Jinqingding Gold Deposit, Jiaodong Peninsula, China: Implications for the Gold Precipitation Mechanism

Minerals, 2019
Lots of studies on gold precipitation mechanisms have focused on fluid inclusions within quartz. However, the trace elements in quartz reflect the properties of the ore fluid, and a comparison of the trace element content in different types of quartz can
Binghan Chen, Jun Deng, Han-Tao Wei, Xing-Zhong Ji   +3 more
semanticscholar   +1 more source

A monolithic MQW InP-InGaAsP-Based optical comb generator [PDF]

, 2007
We report the first demonstration of a monolithic optical-frequency comb generator. The device is based on multi-section quaternary/quaternary eight-quantum-well InP-InGaAsP material in a frequency-modulated (FM) laser design. The modulation is generated
Renaud, C C, Cole, S, Moore, R, Gregoire, S, Lealman, I, Seeds, AJ, Cannard, P, Renaud, CC, Gwilliam, R, Seeds, A J, Pantouvaki, M   +10 more
core   +1 more source

Optimal Orientations of Quartz Crystals for Bulk Acoustic Wave Resonators with the Consideration of Thermal Properties [PDF]

, 2017
Piezoelectric crystals are widely used for acoustic wave resonators of different functioning modes and types including BAW and SAW. It is well-known that only some special orientations of crystals will exhibit desirable properties such as mode couplings,
Ji Wang, Liang-Meng Zhang, Shao-Yun Wang, Long-Tao Xie, Bin Huang, Tingfeng Ma, Jian-Ke Du, Min-Chiang Chao, Ju-lian Shen, Rong-Xing Wu, Hai-Feng Zhang   +10 more
semanticscholar   +1 more source

Au-bearing magnetite mineralizaion in Kashmar (alteration, mineralization, geochemistry, geochemistry and fluid inclusions);

Journal of Economic Geology, 2017
Introduction The study area is located in the central part of the Khaf- Kashmar- Bardaskan volcano-plotunic belt (briefly KKBB). Several IOCG deposits such as Tanourjeh Au-bearing magnetite deposit and Kuh-e-Zar Specularite-rich Au deposit have been ...
Alireza Almasi, Mohammad Hassan Karimpour, Keiko Hattori, Jose Francisco Santos, Khosrow Ebrahimi Nasrabadi, Behnam Rahimi   +5 more
doaj   +1 more source

Microwave Photonics Low Phase Noise RF Comb Generator for D- and J-Band

Journal of Lightwave Technology
We present a microwave photonic RF comb generator based on a quartz-stabilized, ultra-low phase noise fs-pulse laser in combination with high-speed RF waveguide coupled photodetectors. With 325 GHz, the cutoff frequency of the subsystem exceeds the state
Jonas Gläsel, H. Boerma, T. T. Tran, Arbnor Berisha, Karolis Balskus, Edgar Fernandes, Benjamin Rudin, Florian Emaury, Patrick Runge, Martin Schell   +9 more
semanticscholar   +1 more source

High-precision group refractive index measurement of static and mechanically perturbed liquids based on femtosecond frequency-comb dispersive interferometry

Measurement science and technology
A bulk-liquid group refractive index measurement method based on femtosecond optical-frequency-comb dispersive interferometry is proposed and experimentally demonstrated.
Xin Xu, Xin-Yu Liu, Xiu Li, Min Qian, Cheng-Liang Pan, Hui-Chun Ye, Dong Chen, Haojie Xia   +7 more
semanticscholar   +1 more source

ST Quartz Acoustic Wave Sensors with Sectional Guiding Layers [PDF]

, 2008
We report the effect of removing a section of guiding layer from the propagation paths of ST-quartz Love wave sensors; this offers the ease of fabrication of a polymer guiding layer whilst retaining the native surface of the quartz which may then be used
Michael I. Newton, Newton, Michael, Roach, Paul, Glen McHale, Michael Newton, McHale, Glen, Paul Roach   +6 more
core   +1 more source

Optical Frequency Comb Generation in Monolithic Microresonators [PDF]

, 2011
This thesis presents an entirely novel approach for frequency comb generation based on nonlinear frequency conversion in micrometer sized optical resonators.
Del'Haye, Pascal
core   +1 more source