&lt;title&gt;UV fibers for applications below 200 nm&lt;/title&gt;

Klein, Karl-Friedrich; Arndt, Ralf; Hillrichs, Georg; Ruetting, Martin; Veidemanis, M.; Dreiskemper, R.; Clarkin, James P.; Nelson, Gary W.

doi:10.1117/12.427927

Cited by 9 publications

(6 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The samples regarding the irradiation tests are shown in Table 4. Hydrogen diffuses out from the loaded fibres if they are kept a long period of time at room temperature [14,15]. All the fibres were installed at the same time and the tests last for one week.…”

Section: Methodsmentioning

confidence: 99%

Silica–silica polyimide buffered optical fibre irradiation and strength experiment at cryogenic temperatures for 355nm pulsed lasers

et al. 2012

View full text Add to dashboard Cite

A controlled UV-light delivery system is envisioned to be built in order to study the stability properties of superconducting strands. The application requires a wave guide from room temperature to cryogenic temperatures.Hydrogen loaded and unloaded polyimide buffered silica-silica 100 m core fibres were tested at cryogenic temperatures. A thermal stress test was done at 1.9 K and at 4.2 K which shows that the minimal mechanical bending radius for the fibre can be 10 mm for testing (transmission was not measured). The cryogenic transmission loss was measured for one fibre to assess the magnitude of the transmission decrease due to microbending that takes place during cooldown. UV-irradiation degradation measurements were done for bent fibres at 4.2 K with a deuterium lamp and 355 nm pulsed lasers. The irradiation tests show that the fibres have transmission degradation only for wavelengths smaller than 330 nm due to the two photon absorption. The test demonstrates that the fibres are suitable for the cryogenic UV applications with 355 nm and 70 J pulsed lasers. (2012) Published in Cryogenics 52 b s t r a c tA controlled UV-light delivery system is envisioned to be built in order to study the stability properties of superconducting strands. The application requires a wave guide from room temperature to cryogenic temperatures. Hydrogen loaded and unloaded polyimide buffered silica-silica 100 lm core fibres were tested at cryogenic temperatures. A thermal stress test was done at 1.9 K and at 4.2 K which shows that the minimal mechanical bending radius for the fibre can be 10 mm for testing (transmission was not measured). The cryogenic transmission loss was measured for one fibre to assess the magnitude of the transmission decrease due to microbending that takes place during cooldown. UV-irradiation degradation measurements were done for bent fibres at 4.2 K with a deuterium lamp and 355 nm pulsed lasers. The irradiation tests show that the fibres have transmission degradation only for wavelengths smaller than 330 nm due to the two photon absorption. The test demonstrates that the fibres are suitable for the cryogenic UV applications with 355 nm and 70 lJ pulsed lasers.

show abstract

Section: Methodsmentioning

confidence: 99%

Silica–silica polyimide buffered optical fibre irradiation and strength experiment at cryogenic temperatures for 355nm pulsed lasers

et al. 2012

View full text Add to dashboard Cite

show abstract

“…A recently developed spectrometer system, including a deuterium lamp as a broadband light source and a spectrometer with a back-thinned CCD chip measuring from 167 nm to 622 nm, was used to measure the SMF in the deep-UV. Short pieces of MMF with low solarisation were used for coupling in and out of the FUTs through butt-coupling [6,7]. This procedure showed best reliability when repeatedly changing between the laser and the broadband system.…”

Section: Experimental Set-upmentioning

confidence: 99%

“…Improvements in the manufacturing process have lead to UV fibres with significantly lower solarisation, i.e. less generated defect centres during operation, in the deep-UV region [6,7].…”

Section: Introductionmentioning

confidence: 99%

Generation of periodic surface structures on silica fibre surfaces using 405 nm CW diode lasers

Gonschior

Klein

Sun

et al. 2013

Journal of Non-Crystalline Solids

View full text Add to dashboard Cite

This is the unspecified version of the paper.This version of the publication may differ from the final published version. Permanent repository link ABSTRACTPeriodic surface structures have been observed on the end surfaces of synthetic silica fibres when they are exposed to long-term irradiation with light from a 405 nm CW diode laser. The surface structures are generated when the laser power is at a level which is three magnitudes of order lower than that of the damage threshold. They exhibit multiple bends, break-ups and bifurcations, unlike interference patterns but rather like the effect caused by short-pulsed laser irradiation on wide band-gap insulators. The detailed investigation undertaken in this work has concluded that the key parameters that contribute to the generation of the surface structures are power density, surface roughness, polarisation direction and the presence of ultraviolet defect centres.

show abstract

“…117 Third, as a result of the quenching from $2000 C, the fiber contains a relatively large number of the strained Si-O-Si bonds and defect precursors, which potentially turn to color centers with the exposure to the UV-VUV light. These problems have been partly overcome by incorporating SiOH groups to enhance the structural relaxation, 118 while the transmittance and radiation toughness at <200 nm have not been satisfactory. 119,120 Studies described in the previous sections indicate that fluorine-doping is a possible way to reduce the color centers and their precursors in the fiber.…”

Section: Photo-structural Change Of the Sioh Groups;mentioning

confidence: 99%

Function Cultivation of Transparent Oxides Utilizing Built-In Nanostructure

Hosono¹,

Kamiya²,

Hirano³

2006

Bulletin of the Chemical Society of Japan

View full text Add to dashboard Cite

This review article describes recent progress in our research on cultivation of functionality in crystalline and amorphous transparent oxides utilizing nanostructures embedded in the material itself. It includes the background of our research and approach. Subjects included are material exploration and device application of transparent oxide semiconductors for transparent electronics, function emergence in nano-porous crystal 12CaO Á 7Al 2 O 3 utilizing active anion species stabilized by sub-nanometer-sized cages, and modified silica glass for vacuum/deep ultraviolet lasers. Our description of each subject include: background and approach, material design concept, fabrication or modification method, properties, and device fabrication. Emphasis is placed on the importance of a variety of built-in nanostructures in transparent oxides for novel function realization and the high potential of transparent oxides as ingredients for an ubiquitous element strategy of material research in this century.

show abstract

<title>UV fibers for applications below 200 nm</title>

Cited by 9 publications

References 0 publications

Silica–silica polyimide buffered optical fibre irradiation and strength experiment at cryogenic temperatures for 355nm pulsed lasers

Silica–silica polyimide buffered optical fibre irradiation and strength experiment at cryogenic temperatures for 355nm pulsed lasers

Generation of periodic surface structures on silica fibre surfaces using 405 nm CW diode lasers

Function Cultivation of Transparent Oxides Utilizing Built-In Nanostructure

Contact Info

Product

Resources

About