Reporting in Definition: the phenomenon that the refractive index of a medium exhibits a modification which is proportional to the strength of an applied electric field (linear electro-optic effect), How to cite the article; suggest additional literature, URL: https://www.rp-photonics.com/pockels_effect.html. Lett. WebThe electro-optical coefficients r22, r of doped lithium niobate crystals were determined by the interference-polarization method, depending on the zinc concentration in the range 3 is a schematic diagram of a structure of a low-voltage two-block crystal electro-optical Q-switch of the present invention, each of which is cut as shown in FIG. The low voltage two-block crystal electro-optic Q-switch of claim 1, wherein: the two crystals are placed according to the same direction, namely the thickness direction, the width direction and the length direction are respectively parallel, then a 1/2 wave plate applying the wavelength is placed between the two crystals, and the long axis and the short axis of the 1/2 wave plate form an angle of 45 degrees with the thickness direction or the width direction of the crystals. All rights reserved. To achieve eigenfrequency tuning, one can employ thermal, mechanical, and electro-optic means. We found that this decreases to 27.1 pm/V at 1558 nm. The invention has the beneficial effects that: (1) The half-wave voltage is greatly reduced. 2 Maji Road, China (Shanghai) Pilot Free Trade Zone, Address: No. Similar birefringence measured from glass, sapphire, and, Ferroelectric orthorhombic lead metaniobate (PbNb2O6) is known to be metastable with respect to the thermodynamically stable nonferroelectric rhombohedral polymorph. |About Us Quality Suppliers| J. Pfeifle, V. Brasch, M. Lauermann, Y. Yu, D. Wegner, T. Herr, K. Hartinger, P. Schindler, J. Li, D. Hillerkuss, R. Schmogrow, C. Weimann, R. Holzwarth, W. Freude, J. Leuthold, T. J. Kippenberg, and C. Koos, Nat. Address: No. Linear and nonlinear optical probe of the ferroelectric-like phase transition in a polar metal, LiOsO. r T 13. The improvements in new high-efficiency EO crystal materials have held great significance to the development of laser technology. and 390 series.b) KD*P; for the 350 series.c) Lithium Niobate or Lithium Tantalate for the 360 series. Lithium tantalate has two ferroelectric polarization states that are antiparallel (180 {sup o}) to each other. Photonics, 4. When no voltage is applied, the optical path can be completely switched off. In conclusion, time-resolved measurements show a prompt response on a picosecond time scale, which along with the long decay time suggest novel approaches to optical detection of x-rays using ferroelectric materials. SPIE, 25. Here you can submit questions and comments. 6. Together they form a unique fingerprint. By creating prism-shaped domain, we can create a ferroelectric deflector or scanner by applying either static or sweeping voltages across the crystal. His research interest focusses on growth and characterization of electro-optic crystals, laser crystals and nonlinear optical crystals, as well as the design of photoelectric devices. WebThe low-frequency-dependent linear electro-optic properties of K 0.95 Li 0.05 Ta 1-x Nb x O 3 single crystals in the tetragonal state were investigated using the Senarmont method, autoscanning Mach-Zehnder interferometer technique and AC measurement method at room temperature. 3.4. r T 33. We use cookies to help provide and enhance our service and tailor content and ads. The double-block crystal electro-optical Q switch is applied to an Nd-YAG laser, and the purpose of electro-optical Q switching is realized by adopting a 1/4 wave voltage pressurization type Q switching mode. From optical and dielectric measurements in SCT-1.4, the average value of spontaneous polarization P{sub s} (the contribution from the long-range order) has been determined. Copyright 2009 - 2023 hardware-wholesale.com. If you wish to receive personal feedback or consultancy from the author, please contact him, e.g. C.-C. Shih and A. Yariv, J. Phys. The double-block crystal electro-optical Q switch is applied to an Nd-YAG laser, and the purpose of electro-optical Q switching is realized by adopting a 1/4 wave voltage pressurization type Q switching mode. People involved in the study of electrooptic devices will find the text invaluable. The invention provides a low-voltage double-block crystal electro-optic Q switch, which solves the defects of high half-wave voltage, low extinction ratio, large influence by temperature difference and length deviation of two crystals, harsh requirements on processing precision, temperature control precision, crystal quality and the like in the prior art. That is, synchrotron time-resolved studies are currently limited to pump-probe studies that cannot reveal dynamics faster than ~50 ps, whereas the proposed detector would push this into the physically important 1 ps domain. Search terms: Advanced search options. Piezoelectric 18%. III. Dramatic differences in the fatigue behavior are also observed, that results in an electro-optic Low-voltage double-crystal electro-optical Q switch, Application filed by Henan Institute of Engineering, DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL, Lasers, i.e. Photonics, This option allows users to search by Publication, Volume and Page. The invention provides a low-voltage double-block crystal electro-optical Q switch, belonging to the application of crystal materials in the field of photoelectric technology. The electro-optic crystal is a lithium niobate crystal or a lithium tantalate crystal. The dielectric properties of Sr{sub 1x}Ca{sub x}TiO{sub 3} with x = 0.007 (SCT-0.7) have been studied. WebThe book also describes the phenomenological description of tensor nonlinear dielectric properties of crystals, with emphasis on the electrooptic effect; device design and application; and a listing of linear electrooptic coefficients for various substances. Download : Download high-res image (151KB)Download : Download full-size image. Research progress of KTN series crystals were summarized systemically. X-ray diffraction imaging of strain fields in a domain-inverted LiTa0{sub 3} crystal. T. Imai, S. Yagi, S. Toyoda, J. Miyazu, K. Naganuma, S. Kawamura, M. Sasaura, and K. Fujiura, Appl. It has both non-centrosymmetric and centrosymmetric phases offering outstandingly large linear as well as quadratic electro-optic coefficients near the phase transition temperature. Potassium tantalate niobate (KTa 1-x Nb x O 3; KTN) crystals are multifunctional crystals with excellent properties, including electro-optic (EO), piezoelectric, ferroelectric, and photorefractive effects.KTN crystals have the largest Kerr coefficient ever reported, and these crystals also have ideal thermal, chemical, and mechanical 10. r S 13. Opt. 10. The dielectric, pyroelectric, and piezoelectric properties have been systematically investigated earlier to establish the quality of the crystals. Selecting this option will search the current publication in context. Encyclopedia combined with a great Buyer's Guide! D. V. Strekalov, C. Marquardt, A. F. Monifi, J. Friedlein, . K. zdemir, and L. Yang, J. Lightwave Technol. This research program has also produced new fundamental understanding of the interaction of x-rays and optical lasers in materials that has now created a viable path for true picosecond detection of synchrotron x-rays. It is proved that if the permittivity tensor is diagonal, then some ratios of the electro-optical coefficients are equal to the ratios of its diagonal components. Sorry, we don't have an article for that keyword! A higher field sensitivity and greater accuracy are observed for the CMT crystal when compared to a lithium tantalate electro-optic crystal and terbium gallium garnet magneto-optic crystal. Address: Room 302, Building 19, Lane2999, Hutai Rd, shanghai, China. The invention relates to an electro-optical Q-switch device which is made by two lithium niobate or lithium tantalate crystals according to special design cutting and design crystal axis orientation and is used for electro-optical Q-switching in YAG lasers and other lasers. When the 1/4 wave voltage is 720V and the repetition frequency is 10Hz, the output energy of a single pulse is about 200mJ, and the pulse width is about 7ns. This effect can occur only in non-centrosymmetric materials. Center for Ultrafast Optical Science and Department of Electrical Engineering and Computer Science. WebPotassium lithium tantalate niobate single crystals with the composition of K0.95Li0.05Ta1-xNbxO3(KLTN) 0.4