Radio pulse generation at electric breakdown of polypropylene thin film

2020 ◽  
Author(s):  
Viktoria Kapralova ◽  
Vladimir Pakhotin ◽  
Nicolay Sudar
Keyword(s):  
Thin Film ◽  
Radio Pulse ◽  
Pulse Generation ◽  
Electric Breakdown

Thin film beam splitter multiple short pulse generation for enhanced Ni-like Ag x-ray laser emission

2014 ◽  
Vol 39 (8) ◽  
pp. 2246 ◽  
Author(s):  
Gabriel V. Cojocaru ◽  
Razvan G. Ungureanu ◽  
Romeo A. Banici ◽  
Daniel Ursescu ◽  
Olivier Delmas ◽  
...  
Keyword(s):  
Thin Film ◽  
Laser Emission ◽  
Beam Splitter ◽  
Short Pulse ◽  
Pulse Generation ◽  
X Ray ◽  
Short Pulse Generation

scholarly journals Радиоизлучение, создаваемое электрическим пробоем пленки полипропилена

2020 ◽  
Vol 46 (22) ◽  
pp. 35
Author(s):  
В.А. Пахотин ◽  
Н.Т. Сударь
Keyword(s):  
Thin Film ◽  
Pulse Duration ◽  
Electrical Breakdown ◽  
Radio Pulse ◽  
Breakdown Channel ◽  
Channel Resistance ◽  
The Relationship

During electrical breakdown of a thin film of polypropylene, radiation of a radio pulse was detected. The pulse duration is about 400 ns. The spectrum of the radio pulse consists of three main frequencies. The relationship between the breakdown channel resistance and the observed spectrum is substantiated

Zinc phthalocyanine thin film as saturable absorber for Q-switched pulse generation

2020 ◽  
Vol 57 ◽  
pp. 102235 ◽  
Author(s):  
Rawan S.M. Soboh ◽  
A.H.H. Al-Masoodi ◽  
Fuad. N.A. Erman ◽  
Ab. H.H. Al-Masoodi ◽  
H. Arof ◽  
...  
Keyword(s):  
Thin Film ◽  
Saturable Absorber ◽  
Pulse Generation ◽  
Zinc Phthalocyanine

Three-dimensional Dirac semimetal thin-film absorber for broadband pulse generation in the near-infrared

2018 ◽  
Vol 43 (7) ◽  
pp. 1503 ◽  
Author(s):  
Yafei Meng ◽  
Chunhui Zhu ◽  
Yao Li ◽  
Xiang Yuan ◽  
Faxian Xiu ◽  
...  
Keyword(s):  
Thin Film ◽  
Near Infrared ◽  
Three Dimensional ◽  
Pulse Generation ◽  
Dirac Semimetal ◽  
Broadband Pulse

scholarly journals A Simple and Efficient Method to Fabricate Graphene 2D Nanomaterial into a thin Film to Serve as a Saturable a bsorber for Fiber Laser Application

2018 ◽  
Vol 7 (4.15) ◽  
pp. 298
Author(s):  
Yousif I. Hammadi ◽  
Tahreer S. Mansour
Keyword(s):  
Thin Film ◽  
Fiber Laser ◽  
Saturable Absorber ◽  
Modulation Depth ◽  
Laser Cavity ◽  
Pulse Generation ◽  
Saturable Absorbers ◽  
Polarization Insensitive ◽  
Graphene Saturable Absorber ◽  
Pulsed Fiber Laser

A passively pulsed fiber laser using saturable absorbers such as graphene has been increased dramatically in recent years. Up to now, researchers have been proposed many methods to fabricate graphene saturable absorber such as (evanescent coupling structure, electrochemical exfoliation, and mechanical exfoliation) for light pulse generation in a fiber laser. However, each of these methods has got some limitations which reduce the saturable absorber performance and restrict its range of applications. In this paper, we propose a simple but very efficient fabrication way of graphene saturable absorber by converting graphene Nano powder into a thin film using polyvinyl alcohol (PVA) as a host material. The fabricated film can then be easily sandwiched between two fiber pigtails and inserted inside the laser cavity to form the saturable absorber. when compared with other methods, this method is much preferable because it provides saturable absorber with combat structure, maximum interaction area, reasonable insertion loss, polarization insensitive, controllable concentration, and safe to handle. The fabricated graphene saturable absorber in this paper was characterized and found to have a uniform distribution of the graphene nanomaterial in the PVA and have a modulation depth of 6.1% which make it a very promising saturable absorber for ultra-fast fiber laser demonstration.  

Electroforming and electric breakdown of a thin-film MIM system

1992 ◽  
Vol 35 (1) ◽  
pp. 46-50
Author(s):  
G. A. Vorob'ev ◽  
V. M. Gaponenko
Keyword(s):  
Thin Film ◽  
Electric Breakdown

Effects of Imidization Process on the Electric Breakdown Strength of Polyimide Thin Film

2017 ◽  
Vol 868 ◽  
pp. 248-253
Author(s):  
Jun Sheng Liang ◽  
Xu Fang ◽  
Jin He Yang ◽  
Tong Qun Ren ◽  
Da Zhi Wang
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Spin Coating ◽  
Performance Index ◽  
Breakdown Strength ◽  
Dominant Role ◽  
Electric Breakdown ◽  
Temperature Profiles ◽  
Dc Voltage ◽  
Thermal Imidization

The electric breakdown voltage (Vbd) is a fundamental performance index for insulation thin film in MEMS, and plays a dominant role for the operation reliability of this kind of devices. In this work, positive polyimide (PI) photoresist was used to prepare thin films by spin-coating and thermal imidization. Electric breakdown experiments were carried out under DC voltage mode. The effect of imidization temperature on Vbd was also studied by setting three different imidization temperature profiles. XRD was applied to test the composition and microstructure of the PI thin films. Results show that the imidization degree of the PI thin film will be increased with the raising of the imidization temperature from 280 to 350°C. This means that a more completed imidization process can be achieved in the PI thin film by using higher imidization temperature. The highest Vbd of about 2740V and an average Vbd of 343kV/mm can be achieved on a 8.5μm thick PI thin film imidized at 350°C.

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