Luminescence Measurement of Fused Silica in the Presence of Excimer Laser Radiation

1989 ◽  
Vol 172 ◽  
Author(s):  
Nobu Kuzuu ◽  
Yohshikazu Komatsu ◽  
Masataka Murahara
Keyword(s):  
Glass Network ◽  
Wavelength Region ◽  
Fused Silica ◽  
Strong Emission ◽  
Ultraviolet Wavelength ◽  
Strong Emission Band ◽  
Excimer Laser Radiation ◽  
The Difference ◽  
Red Luminescence ◽  
Luminescence Characteristics

AbstractExicimer laser induced luminsecence characteristics of type III fused silica was investigated. The luminescence characteristics in the ultraviolet wavelength region are strongly depending on the intensity of red luminescence at 650 nm. A sample without red luminescence shows a strong emission band at 280 nm. We found that the 280 nm band is corresponds to a absorption band at 225 nm. To clearfy the nature of the 280 nm band, we studied the difference of luminescence of samples which had been kept on heating under various atmosphares, i.e., N2, O2, He, H2, and air. By these results we suspect that the 280 nm band is related to hydrogen atom which are weakly bounded to the glass network.

scholarly journals Characterization of ethanol concentrations at ultraviolet wavelength region

2018 ◽  
Vol 9 (4S) ◽  
pp. 384
Author(s):  
H. Saad ◽  
M.K. A. Rahman ◽  
I. Yassin ◽  
A. M. Muad
Keyword(s):  
Wavelength Region ◽  
Ultraviolet Wavelength

Characterization of a Piezoresistive Microcantilever as a Sensor for Detecting the Bio-Molecules

2006 ◽  
Vol 510-511 ◽  
pp. 1090-1093
Author(s):  
Kyung-Ah Yoo ◽  
Kwang Ho Na ◽  
Seung-Ryong Joung ◽  
D. Jeon ◽  
Y.J. Choi ◽  
...  
Keyword(s):  
Surface Stress ◽  
Cost Efficiency ◽  
Detection Method ◽  
Lab On A Chip ◽  
Cell System ◽  
Fused Silica ◽  
The Difference ◽  
Fused Silica Glass ◽  
Fluid Cell

We propose an electrical detection method for detecting the various bio-molecules effectively with microcantilevers. The piezoresistive microcantilevers were fabricated employing surface micromachining technique that has attractive advantages in terms of cost efficiency, simplicity, and ability of fabricating in array. The fluid cell system for injection of bio-molecular solution is fabricated using polydimethylsiloxane (PDMS) and a fused silica glass. The microcantilever is deflected with respect to the difference of the surface stress caused by the formation of self-assembled bio-molecules on the gold coated side of the microcantilever. We confirmed that the deflections occurred by the bio-molecule adsorption and microcantilever can be widely used to a &-TAS and a lab-on-a-chip as a sensor for the potential detection of various biomolecules.

Influence of binding layer on the reflective performance of a Au film in vacuum ultraviolet wavelength region

2007 ◽  
Vol 46 (36) ◽  
pp. 8641 ◽  
Author(s):  
Gan Shuyi ◽  
Hong Yilin ◽  
Xu Xiangdong ◽  
Liu Yin ◽  
Zhou Hongjun ◽  
...  
Keyword(s):  
Vacuum Ultraviolet ◽  
Wavelength Region ◽  
Au Film ◽  
Ultraviolet Wavelength

Study on the Luminescence and Reflection Spectra of Al2O3 Doped Er2O3 Films on Si Substrates

2011 ◽  
Vol 474-476 ◽  
pp. 345-348
Author(s):  
Yan Yan Zhu ◽  
Ze Bo Fang ◽  
Yu Zhao ◽  
Hui Yu Li ◽  
Jing Chen ◽  
...  
Keyword(s):  
Refractive Index ◽  
Magnetron Sputtering ◽  
Emission Band ◽  
Emission Spectra ◽  
Reflection Spectra ◽  
Radio Frequency Magnetron Sputtering ◽  
Strong Emission ◽  
Si Substrates ◽  
Si Solar Cells ◽  
Strong Emission Band

Amorphous Al2O3 doped Er2O3 films were deposited on Si(001) substrates by radio frequency magnetron sputtering technique. Emission spectra exhibit a strong emission band around 410 nm and a series of emission band near 970, 980, 1018, 1042 and 1080nm. Ellipsometry measurements show that the refractive indexof the ErAlO films in the region of 400～1000 nm is between 1.76-1.83. The reflectivity of the ErAlO on Si is much smaller than that of clean Si and pure Er2O3 films. All the results indicate that ErAlO could be a promising material for Si solar cells.

Attosecond nonlinear Fourier transformation spectroscopy of CO2 in extreme ultraviolet wavelength region

2008 ◽  
Vol 129 (16) ◽  
pp. 161103 ◽  
Author(s):  
Tomoya Okino ◽  
Kaoru Yamanouchi ◽  
Toshihiko Shimizu ◽  
Ri Ma ◽  
Yasuo Nabekawa ◽  
...  
Keyword(s):  
Fourier Transformation ◽  
Extreme Ultraviolet ◽  
Wavelength Region ◽  
Ultraviolet Wavelength

A SIMPLE XUV SOURCE AT 13.5 NM BASED ON ABLATIVE CAPILLARY DISCHARGE

2002 ◽  
Vol 09 (01) ◽  
pp. 627-630 ◽  
Author(s):  
ŽELJKO ANDREIĆ ◽  
SAMIR SHAKIR ELLWI ◽  
SANDA PLESLIĆ ◽  
HANS-JOACHIM KUNZE
Keyword(s):  
Polyvinyl Chloride ◽  
Spectral Region ◽  
Emission Band ◽  
Noble Gases ◽  
Region Of Interest ◽  
Radiation Energy ◽  
Capillary Discharge ◽  
Strong Emission ◽  
Strong Emission Band

A XUV source that produces a strong emission band at the wavelength of 13.5 nm with a FWHM of 0.6 nm and a duration of about 100 ns is described. In particular this wavelength has attracted the attention of many scientists working in the field by being a good candidate for the development of XUV lithography. The source was generated by using an ablative capillary discharge where the capillary was made of PVC (polyvinyl chloride). A remarkable burst of radiation at the above wavelength was recorded, the intensity of the radiation being higher by a factor of 10 in the spectral region of interest, as compared to usually used capillaries made of POM (polyacetal), or to recently developed capillary discharges in noble gases. Total XUV radiation energy of up to 50 mJ per pulse seems to be possible with such a device. Due to its simplicity, the described capillary discharge is a good candidate for a simple incoherent XUV source at 13.5 nm.

Extreme-ultraviolet wavelength and lifetime measurements in highly ionized krypton

2005 ◽  
Vol 83 (11) ◽  
pp. 1127-1139 ◽  
Author(s):  
K W Kukla ◽  
A E Livingston ◽  
C M Vogel Vogt ◽  
H G Berry ◽  
R W Dunford ◽  
...  
Keyword(s):  
Excited State ◽  
Extreme Ultraviolet ◽  
Wavelength Region ◽  
Accelerator Facility ◽  
Lifetime Measurements ◽  
Ultraviolet Wavelength ◽  
Position Sensitive ◽  
Excited State Lifetimes ◽  
34.50 Fa ◽  
Beam Foil

We have studied the spectrum of highly ionized krypton in the extreme-ultraviolet wavelength region (50–300 Å), using beam-foil excitation of fast krypton ions at the Argonne ATLAS accelerator facility. We report measurements of transition wavelengths and excited-state lifetimes for n = 2 states in the lithiumlike, berylliumlike, and boronlike ions, Kr31+,32+,33+. Excited state lifetimes ranging from 10 ps to 3 ns were measured by acquiring time-of-flight-delayed spectra with a position-sensitive multichannel detector.PACS Nos.: 32.70.Cs, 32.30.Jc, 34.50.Fa

scholarly journals Studying the Nonlinear Optical Properties of Fluoride Laser Host Materials in the Ultraviolet Wavelength Region

2021 ◽  
Vol 12 (1) ◽  
pp. 372
Author(s):  
Duong Van Pham ◽  
Diep Van Nguyen ◽  
Tu Xuan Nguyen ◽  
Kieu Anh Thi Doan ◽  
Quan Minh Le ◽  
...  
Keyword(s):  
Refractive Index ◽  
Optical Properties ◽  
Ultrashort Pulse ◽  
Nonlinear Refractive Index ◽  
Nonlinear Optical ◽  
Wavelength Region ◽  
Aluminum Fluoride ◽  
Self Focusing ◽  
Host Materials ◽  
Ultraviolet Wavelength

Fluoride host materials doped with trivalent cerium ions have previously been demonstrated as successful laser materials in the ultraviolet wavelength region. However, the nonlinear optical properties of the fluoride hosts in this wavelength region have not been investigated yet, although nonlinearity could result in undesirable effects such as self-focusing and pulse distortion when these fluoride materials are used as gain media in high-power, ultrashort pulse laser oscillator and amplifier systems. In this work, the nonlinear refractive index of lithium calcium aluminum fluoride (LiCaAlF6), lithium strontium aluminum fluoride (LiSrAlF6), lanthanum fluoride (LaF3), and yttrium lithium fluoride (YLiF4) fluoride host materials are determined using the Kramers–Krönig relation model in the ultraviolet wavelength region. Self-focusing conditions, particularly at the peak laser emission wavelength of these materials, are further analyzed. Results show that LiCaAlF6 has the smallest nonlinear refractive index and self-focusing, making it an ideal host material under the conditions of ultrashort pulse and ultrahigh-power laser generation.

scholarly journals Monolithic Structure-Optical Fiber Sensor with Temperature Compensation for Pressure Measurement

Materials ◽  
2019 ◽  
Vol 12 (4) ◽  
pp. 552 ◽  
Author(s):  
Wenhua Wang ◽  
Xinlei Zhou ◽  
Weina Wu ◽  
Jihua Chen ◽  
Shenlong He ◽  
...  
Keyword(s):  
Optical Fiber ◽  
Pressure Sensor ◽  
Temperature Compensation ◽  
Adhesive Bonding ◽  
Optical Fiber Sensor ◽  
Fused Silica ◽  
Deep Penetration ◽  
Seepage Pressure ◽  
Different Temperatures ◽  
The Difference

In this paper, an optical fiber pressure sensor cascading a diaphragm-assisted Fabry-Perot interferometer (FPI) and a fiber Bragg grating (FBG) is proposed and demonstrated. The sensor comprises an optical fiber, a fused-silica ferrule, and a fused-silica diaphragm. We use a femtosecond laser firstly to fabricate a pit on the end face of the ferrule and then investigate the laser heat conduction welding and deep penetration welding technology for manufacturing the seepage pressure sensor of the all-fused-silica material. We develop a sensor based on a monolithic structured FPI without adhesive bonding by means of all-laser-welding. The pressure characteristics of the sensor have good linearity at different temperatures. Also, the monolithic structured sensor possesses excellent resolution, hysteresis, and long-term stability. The environmental temperature obtained by the FBG is employed to compensate for the difference in seepage pressure at different temperatures, and the difference in seepage pressure responses at different temperatures is shown to be very small after temperature compensation.

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