Dual THz Wave and X-ray Generation from a Water Film under Femtosecond Laser Excitation

Nanomaterials
Hsin-Hui HuangKoji Hatanaka

Abstract

Simultaneous emission of the THz wave and hard X-ray from thin water free-flow was induced by the irradiation of tightly-focused femtosecond laser pulses (35 fs, 800 nm, 500 Hz) in air. Intensity measurements of the THz wave and X-ray were carried out at the same time with time-domain spectroscopy (TDS) based on electro-optic sampling with a ZnTe(110) crystal and a Geiger counter, respectively. Intensity profiles of the THz wave and X-ray emission as a function of the solution flow position along the incident laser axis at the laser focus show that the profile width of the THz wave is broader than that of the X-ray. Furthermore, the profiles of the THz wave measured in reflection and transmission directions show different features and indicate that THz wave emission is, under single-pulse excitation, induced mainly in laser-induced plasma on the water flow surface. Under double-pulse excitation with a time separation of 4.6 ns, 5⁻10 times enhancements of THz wave emission were observed. Such dual light sources can be used to characterise materials, as well as to reveal the sequence of material modifications under intense laser pulses.

References

Oct 25, 1993·Physical Review Letters·H HamsterR W Falcone
Aug 7, 2007·Physical Review Letters·C D'AmicoV T Tikhonchuk
Dec 11, 2007·Optics Letters·D J Cook, R M Hochstrasser
May 26, 2009·Optics Express·Takeshi NagashimaShuji Sakabe
Jan 1, 1983·Optics Letters·R L ForkW J Tomlinson
Oct 15, 1989·Optics Letters·M ExterD Grischkowsky
Feb 6, 2015·Scientific Reports·Shigeki TokitaShunsuke Inoue
Sep 16, 2016·Optics Letters·I E IlyakovR A Akhmedzhanov
Dec 16, 2016·Optics Letters·Fabio NovelliJeffrey A Davis
Nov 1, 2017·Nature Communications·Indranuj DeyG Ravindra Kumar
May 2, 2018·Nanomaterials·Xiao-Wen CaoHong-Bo Sun
May 3, 2018·Optics Express·Daniel M Mittleman

❮ Previous
Next ❯

Citations

Nov 13, 2018·Beilstein Journal of Nanotechnology·Wei-Hung HsuKoji Hatanaka

❮ Previous
Next ❯

Methods Mentioned

BETA
X-ray
irradiates
electron scattering

Software Mentioned

LabView

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.