Temporal synchronization of independently frequency tunable dual CO2laser pulses

1993 ◽  
Vol 74 (5) ◽  
pp. 3599-3601
Author(s):  
D. M. Oman ◽  
P. Sakthivel ◽  
P. Mukherjee
Keyword(s):  
Temporal Synchronization ◽  
Frequency Tunable

Frequency Tunable Microwave Dielectric Devices

2007 ◽  
Vol 66 (15) ◽  
pp. 1371-1379
Author(s):  
Yu. Poplavko ◽  
V. Molchanov ◽  
V. Pashkov ◽  
E. Furman ◽  
M. Lanagan
Keyword(s):  
Microwave Dielectric ◽  
Tunable Microwave ◽  
Frequency Tunable ◽  
Dielectric Devices

Design and Verification of Novel Low-Profile Miniaturized Pattern and Frequency Tunable Microstrip Patch Antenna Using Two PIN Diodes

2021 ◽  
Author(s):  
Sunil P. Lavadiya ◽  
Vishal Sorathiya ◽  
Sunny Kanzariya ◽  
Bhavik Chavda ◽  
Osama S. Faragallah ◽  
...  
Keyword(s):  
Patch Antenna ◽  
Microstrip Patch Antenna ◽  
Pin Diodes ◽  
Microstrip Patch ◽  
Low Profile ◽  
Frequency Tunable

Ultralow-frequency tunable acoustic metamaterials through tuning gauge pressure and gas temperature

2021 ◽  
Vol 44 ◽  
pp. 101218
Author(s):  
Shaowu Ning ◽  
Ziming Yan ◽  
Dongyang Chu ◽  
Heng Jiang ◽  
Zhanli Liu ◽  
...  
Keyword(s):  
Acoustic Metamaterials ◽  
Gas Temperature ◽  
Ultralow Frequency ◽  
Gauge Pressure ◽  
Frequency Tunable

scholarly journals Frequency-Tunable Terahertz Plasmonic Structure Based on the Solid Immersed Method for Sensing

Sensors ◽  
2021 ◽  
Vol 21 (4) ◽  
pp. 1419
Author(s):  
Toshio Sugaya ◽  
Yukio Kawano
Keyword(s):  
Electric Field ◽  
Field Intensity ◽  
Electric Field Intensity ◽  
Wavelength Region ◽  
Diffraction Limit ◽  
Field Analysis ◽  
Plasmonic Structure ◽  
Sensing Applications ◽  
Frequency Tunable ◽  
Bull's Eye

Terahertz waves are located in the frequency band between radio waves and light, and they are being considered for various applications as a light source. Generally, the use of light requires focusing; however, when a terahertz wave is irradiated onto a small detector or a small measurement sample, its wavelength, which is much longer than that of visible light, causes problems. The diffraction limit may make it impossible to focus the terahertz light down to the desired range by using common lenses. The Bull’s Eye structure, which is a plasmonic structure, is a promising tool for focusing the terahertz light beyond the diffraction limit and into the sub-wavelength region. By utilizing the surface plasmon propagation, the electric field intensity and transmission coefficient can be enhanced. In this study, we improved the electric field intensity and light focusing in a small region by adapting the solid immersion method (SIM) from our previous study, which had a frequency-tunable nonconcentric Bull’s Eye structure. Through electromagnetic field analysis, the electric field intensity was confirmed to be approximately 20 times higher than that of the case without the SIM, and the transmission measurements confirmed that the transmission through an aperture had a gap of 1/20 that of the wavelength. This fabricated device can be used in imaging and sensing applications because of the close contact between the transmission aperture and the measurement sample.

DTC-Enabled Frequency-Tunable Inverted-F Antenna for IoT Applications

2020 ◽  
Vol 19 (2) ◽  
pp. 307-311 ◽  
Author(s):  
Thomas Houret ◽  
Leonardo Lizzi ◽  
Fabien Ferrero ◽  
Christophe Danchesi ◽  
Stephane Boudaud
Keyword(s):  
Iot Applications ◽  
Frequency Tunable
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