scholarly journals Extended Sellmeier equation for the extraordinary refractive index of 5% MgO-doped congruent LiNbO3 at high temperature

AIP Advances ◽  
2017 ◽  
Vol 7 (9) ◽  
pp. 095201 ◽  
Author(s):  
H. B. Lin ◽  
S. H. Yu ◽  
C. X. Shi ◽  
X. J. Lv ◽  
P. Lv ◽  
...  
Keyword(s):  
Refractive Index ◽  
High Temperature ◽  
Sellmeier Equation ◽  
Extraordinary Refractive Index

Temperature-dependent Sellmeier equation in the MIR for the extraordinary refractive index of 5% MgO doped congruent LiNbO3

2006 ◽  
Vol 86 (1) ◽  
pp. 111-115 ◽  
Author(s):  
O. Paul ◽  
A. Quosig ◽  
T. Bauer ◽  
M. Nittmann ◽  
J. Bartschke ◽  
...  
Keyword(s):  
Refractive Index ◽  
Temperature Dependent ◽  
Sellmeier Equation ◽  
Extraordinary Refractive Index

Oxa-Michael polyaddition of vinylsulfonylethanol for aliphatic polyethersulfones

2021 ◽  
Author(s):  
Nicole Ziegenbalg ◽  
Ruth Lohwasser ◽  
Giovanni D’Andola ◽  
Torben Adermann ◽  
Johannes Christopher Brendel
Keyword(s):  
Refractive Index ◽  
High Temperature ◽  
Flame Retardant ◽  
Chemical Resistance ◽  
High Refractive Index ◽  
Industrial Applications ◽  
Interesting Class ◽  
The Common ◽  
Flame Retardant Properties

Polyethersulfones are an interesting class of polymers for industrial applications due to their unusual properties such as a high refractive index, flame-retardant properties, high temperature and chemical resistance. The common...

Refractive Index Profiles of High Dose Ti Implanted Optical Waveguides in LiNbO3

1989 ◽  
Vol 157 ◽  
Author(s):  
T. Bremer ◽  
P.R. Ashley ◽  
R. Irmscher ◽  
Ch. Buchal
Keyword(s):  
Refractive Index ◽  
Optical Waveguides ◽  
Refractive Index Change ◽  
Solubility Limit ◽  
High Dose ◽  
Sufficient Time ◽  
Index Change ◽  
Single Crystalline ◽  
Subsequent Processing ◽  
Extraordinary Refractive Index

ABSTRACTSingle crystalline substrates of LiNb03 have been implanted with 48Ti ions at 200 keV and doses up to 4 × 1017 cm−2. The implants have been performed at wafer temperatures of 77 K, 300 K and 620 K. Immediate subsequent processing at 1273 K in wet oxygen ambient led to good epitaxial regrowth at all doses, if sufficient time was allowed. The maximum observed extraordinary refractive index change after regrowth Δne=0.04, indicating a solubility limit of 3.3×l021 Ti cm−3 corresponding to 18 % of Nb5+ replaced by Ti4+.

scholarly journals Simultaneous Measurement of Temperature and Refractive Index Using High Temperature Resistant Pure Quartz Grating Based on Femtosecond Laser and HF Etching

Materials ◽  
2021 ◽  
Vol 14 (4) ◽  
pp. 1028
Author(s):  
Na Zhao ◽  
Qijing Lin ◽  
Kun Yao ◽  
Fuzheng Zhang ◽  
Bian Tian ◽  
...  
Keyword(s):  
Refractive Index ◽  
High Temperature ◽  
Femtosecond Laser ◽  
Optical Fiber ◽  
Temperature Response ◽  
High Sensitivity ◽  
Xrd Analysis ◽  
Refractive Index Sensor ◽  
Compact Structure ◽  
Fluid Analysis

The optical fiber temperature and refractive index sensor combined with the hollow needle structure for medical treatment can promote the standardization of traditional acupuncture techniques and improve the accuracy of body fluid analysis. A double-parameter sensor based on fiber Bragg grating (FBG) is developed in this paper. The sensor materials are selected through X-ray diffraction (XRD) analysis, and the sensor sensing principle is theoretically analyzed and simulated. Through femtosecond laser writing pure silica fiber, a high temperature resistant wavelength type FBG temperature sensor is obtained, and the FBG is corroded by hydrofluoric acid (HF) to realize a high-sensitivity intensity-type refractive index sensor. Because the light has dual characteristics of energy and wavelength, the sensor can realize simultaneous dual-parameter sensing. The light from the lead-in optical fiber is transmitted to the sensor and affected by temperature and refractive-index; then, the reflection peak is reflected back to the lead-out fiber by the FBG. The high temperature response and the refractive index response of the sensor were measured in the laboratory, and the high temperature characteristics of the sensor were verified in the accredited institute. It is demonstrated that the proposed sensor can achieve temperature sensing up to 1150 °C with the sensitivity of 0.0134 nm/°C, and refractive sensing over a refractive range of 1.333 to 1.4027 with the sensitivity of −49.044 dBm/RIU. The sensor features the advantages of two-parameter measurement, compact structure, and wide temperature range, and it exhibits great potential in acupuncture treatment.

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