Emissions of brilliant attosecond pulse in circular polarization by using inclined lasers

2021 ◽  
Vol 28 (9) ◽  
pp. 093105
Author(s):  
C. L. Zhong ◽  
Y. Zhang ◽  
X. B. Li ◽  
J. Wang ◽  
C. T. Zhou ◽  
...  
Keyword(s):  
Circular Polarization ◽  
Attosecond Pulse

3D Characterization of Attosecond Pulse Trains with Circular Polarization

2016 ◽  
Author(s):  
Cong Chen ◽  
Zhensheng Tao ◽  
Carlos Hernández-García ◽  
Piotr Matyba ◽  
Adra Carr ◽  
...  
Keyword(s):  
Circular Polarization ◽  
Attosecond Pulse ◽  
Pulse Trains

scholarly journals Generation of attosecond X-ray pulses via Thomson scattering of counter-propagating laser pulses

2010 ◽  
Vol 28 (1) ◽  
pp. 27-34 ◽  
Author(s):  
L. Liu ◽  
C.-Q. Xia ◽  
J.-S. Liu ◽  
W.-T. Wang ◽  
Y. Cai ◽  
...  
Keyword(s):  
Circular Polarization ◽  
Linear Polarization ◽  
Laser Pulses ◽  
Thomson Scattering ◽  
Attosecond Pulse ◽  
X Ray ◽  
Carrier Envelope Phase ◽  
Highly Sensitive ◽  
Attosecond Pulses

AbstractIt is proposed that single attosecond pulses be generated via electron's Thomson scattering of two counter-propagating laser pulses. In the case of linear polarization, the generation of a single attosecond pulse is highly sensitive to the carrier envelope phase (CEP). However, in the case of circular polarization, it is completely independent on the CEP, which will make circular polarization favorable to generate a stable attosecond X-ray pulse. For either linear or circular polarization, the radiation obtained by using two counter-propagating pulses can be much more intense than that obtained by only using one of these two pulses.

HOW THE MEDIAN S-BAND CIRCULAR POLARIZATION RATIO OF KILOMETER-SCALE CRATERS EVOLVES WITH TIME ON THE LUNAR MARIA

2018 ◽  
Author(s):  
Caleb I. Fassett ◽  
◽  
Isabel R. King ◽  
Cole A. Nypaver ◽  
Bradley J. Thomson
Keyword(s):  
Circular Polarization ◽  
Polarization Ratio ◽  
Lunar Maria

Generation of an Attosecond Pulse Based on Collective Spontaneous Radiation Emission of a Layer of Three-Level Atoms Excited by a Pair of Unipolar Pulses

2020 ◽  
Vol 128 (11) ◽  
pp. 1857-1864
Author(s):  
R. M. Arkhipov ◽  
M. V. Arkhipov ◽  
I. Babushkin ◽  
A. V. Pakhomov ◽  
N. N. Rosanov
Keyword(s):  
Attosecond Pulse ◽  
Spontaneous Radiation ◽  
Radiation Emission

A Broadband Circularly Polarized Cross-slotted Patch Antenna with Horizontal Meandered Strip (HMS)

Frequenz ◽  
2020 ◽  
Vol 74 (5-6) ◽  
pp. 191-199
Author(s):  
M. K. Verma ◽  
Binod K. Kanaujia ◽  
J. P. Saini ◽  
Padam S. Saini
Keyword(s):  
Circular Polarization ◽  
Patch Antenna ◽  
Impedance Matching ◽  
Axial Ratio ◽  
Impedance Bandwidth ◽  
Radiation Patterns ◽  
Circularly Polarized ◽  
Feeding Technique

AbstractA broadband circularly polarized slotted square patch antenna with horizontal meandered strip (HMS) is presented and studied. The HMS feeding technique provides the good impedance matching and broadside symmetrical radiation patterns. A set of cross asymmetrical slots are etched on the radiating patch to realize the circular polarization. An electrically small stub is added on the edge of the antenna for further improvement in performance. Measured 10-dB impedance bandwidth (IBW) and 3-dB axial ratio bandwidth (ARBW) of the proposed antenna are 32.31 % (3.14–4.35 GHz) and 20.91 % (3.34–4.12 GHz), respectively. The gain of the antenna is varied from 3.5 to 4.86dBi within 3-dB ARBW. Measured results matched well with the simulated results.

scholarly journals Simple design of efficient broadband multifunctional polarization converter for X-band applications

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Thi Kim Thu Nguyen ◽  
Thi Minh Nguyen ◽  
Hong Quang Nguyen ◽  
Thanh Nghia Cao ◽  
Dac Tuyen Le ◽  
...  
Keyword(s):  
Circular Polarization ◽  
Incident Angle ◽  
Polarization Conversion ◽  
Simple Design ◽  
Cross Polarization ◽  
Polarization Converter ◽  
Frequency Bands ◽  
X Band ◽  
Cost Efficient ◽  
Patch Resonators

AbstractA simple design of a broadband multifunctional polarization converter using an anisotropic metasurface for X-band application is proposed. The proposed polarization converter consists of a periodic array of the two-corner-cut square patch resonators based on the FR-4 substrate that achieves both cross-polarization and linear-to-circular polarization conversions. The simulated results show that the polarization converter displays the linear cross-polarization conversion in the frequency range from 8 to 12 GHz with the polarization conversion efficiency above 90%. The efficiency is kept higher than 80% with wide incident angle up to 45°. Moreover, the proposed design achieves the linear-to-circular polarization conversion at two frequency bands of 7.42–7.6 GHz and 13–13.56 GHz. A prototype of the proposed polarization converter is fabricated and measured, showing a good agreement between the measured and simulated results. The proposed polarization converter exhibits excellent performances such as simple structure, multifunctional property, and large cost-efficient bandwidth and wide incident angle insensitivity in the linear cross polarization conversion, which can be useful for X-band applications. Furthermore, this structure can be extended to design broadband polarization converters in other frequency bands.

scholarly journals 3D Printing of a Monolithic K/Ka-Band Dual-Circular Polarization Antenna-Feeding Network

IEEE Access ◽  
2021 ◽  
pp. 1-1
Author(s):  
G. Addamo ◽  
M. Lumia ◽  
F. Calignano ◽  
F. Paonessa ◽  
G. Virone ◽  
...  
Keyword(s):  
3D Printing ◽  
Circular Polarization ◽  
Ka Band
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