Меню Содержимое
Home

Lithium niobate

Lithium Niobate (LiNbO3 or LNB) and Lithium Tantalate (LiTaO3 or LTA) possess a combination of unique electro-optical, acoustic, piezoelectric, pyroelectric and non-linear optical properties making it a suitable material for applications in acoustic, electro-optical and non-linear optical devices, high-temperature acoustic transducers, receivers-transmitters of acoustic vibrations, air force acceleration meters, acoustic wave delay lines, deflectors, generators of non-linear distorted waves, acoustic filters, electro-optical Q-modulators (Q-switch), encoders-decoders, filters in television receivers, video-recorders and decoders, converters, frequency doublers and resonators in laser systems, non-linear elements in parametric light generators, etc. An indispensable condition of some of these applications is a high degree of optical uniformity of Lithium Niobate crystals used for fabrication of active elements. Crystal growth technology by low temperature-gradient Czochralsky method allows the growth of large-size high-quality LNB (up to 1-1.5 kg) and LTA single crystals for such non-conventional applications. It should be noted that both crystals are non-hygroscopic, colourless, water-insoluble and have low transmission losses.
   LiNbO3 damage due to photorefractive effect in congruent melt grown LiNbO3 certainly limits it's applications in high optical power devices. For this purpose specially grown LiNbO3 with composition near stoichiometric can be offered. It is similar to the Li-rich VTE LiNbO3 with the obvious advantage that bulk samples can be obtained. Another possibility to increase laser damage threshold of LiNbO3 is doping with MgO. MolTech can offer both MgO:LiNbO3 and stoichiometric LiNbO3 elements cut from boules up to 60 mm dia.
   Some other crystals of LiNbO3 series are available, including LiNbO3 doped with Fe, Zn, Gd, Cu , Y, B, Er etc.
   For some applications similar in properties to Lithium Tantalate (LiTaO3) crystal is more advantageous than LiNbO3 (E-O modulators, pyroelectric sensors etc.). Lithium Tantalate exhibits unique electro-optical, pyroelectric and piezoelectric properties combined with good mechanical and chemical stability and wide transparency range and high optical damage threshold. This makes LiTaO3 well-suited for numerous applications including electro-optical modulators, pyroelectric detectors, optical waveguide and SAW substrates, piezoelectric transducers etc. MolTech can offer parts cut from high quality boules grown along X axis, fully poled, with dia. and length of up to 60 mm.
MAIN PROPERTIES:

MaterialLNBLTA
Transparency range, µm0.4 - 50.4 - 5
Point group3m3m
Space groupR3cR3c
Lattice parameters (hexagonal), Åa = 5.148, c = 13.863a = 5.154, c = 13.784
Density, g/cm34.647.45
Mohs hardness55.5
Refractive indexes :no = 2.28647, ne = 2.20240 (at 0.633 µm)no = 2.183, ne = 2.188 (at 0.6 µm)
 no = 2.2273, ne = 2.1515 (at 1.1523 µm)no = 2.131, ne = 2.134 (at 1.2 µm)
Non-linear coefficient at 1.06 µm, pm/Vd22 = 5.6, d31 = -11.6, d33 = 8.6d22 = 2, d31 = -1, d33 = -21
Electroptical coefficient at 0.63 µm, pm/Vr31 = 8.6, r22 = 3.4, r33 = 30.8, r51 = 28r13 = 8, r22 = -0.2, r33 = 30

  MolTech provides LiNbO3 and LiTaO3 crystals with high optical quality as finished wafers, elements or blanks at your request. Orientation, polishing, single-band and dual-band AR-coatings by customers' order. The AR-coatings are characterized by low reflectance, high damage threshold and long durability.
 

Akimov generator

The Akimov generator using own radiator removes the membrane between parallel worlds and opens the portals to the parallel worlds. The portal remains active for several days after turning off the generator.  The portal parameters depend on the frequency spectrum supplied to the radiator. If two Akimov generators with the same spectra are switched on in various places this has to make a teleportation tunnel through which radio waves can pass in both directions.
 

HMS (Hologram Matrix Scan) Hardware and Software System

Description.

The HMS Hardware and Software System had been created for analysis and research of the sound and radio wave spectra received with the help of a laser device based on the LGN-303 laser, which had been used by Georgy Georgiyevich Tertyshny, Nikolay Grigoriyevich Kokaya, Peter Petrovich Gariaev in their experiments.

The software system consists of several modules – programs and devices for connecting the laser scanner with a computer and other devices.

Description of the software modules.

1. “Data base” software module controls the spectra base. It is possible to edit the information about the spectra, to add the new spectra and to start from its shell various other software modules for analysis of the saved spectra.
2. “T-Analysis” software module – it analyzes the cosmo-genetic situations and chooses the time for creating a spectrum with necessary parameters.
3. “Linguistic analysis” software module – it processes the recorded spectrum with various methods and analyzes it for the presence of text information. It is possible to select in the settings various types of alphabets and connect the dictionaries, according to which the presence of useful information is being verified.
4. “Musical Matrix” software module – it is used for converting the information of the spectrum received with the help of PWM (Pulse-Width Modulation) AFC (Automatic Frequency Control), or with the PWM PS-41 (Power Supply – 41), into a musical melody. Two main types of converting are used: space-based converting and time-based converting.
5. “Scanner” software module – it is used for extracting the information from a photograph for the subsequent visualization. Two variants of information extraction are possible:
1. general photograph background extraction;
2. pixel by pixel extraction of information from a photograph.
6. “Visualization” software module – it carries out the processing of the received photograph spectrum and its graphical analysis.

7. “Irradiator” software module – it reproduces various types of recorded spectra in different frequency ranges. This is connected with significant losses of useful information in sound matrices. Therefore, all the experiments with rats carried out by Mr. Tertyshny, Mr. Kokaya, Mr. Gariaev, were conducted with the help of the total spectrum of radio waves radiated by the LGN-303 power supply unit. 

 

Акимов А.Е. о Спиноре ( Spinor )

 

Transfer of information on Lupichev

 

Virtual electrons

Anatoly Pavlenko offered the hypothesis that a torsion field consists of virtual particles. Like this, the operation of mobile telephones causes left torsion fields producing virtual electrons that generate free radicals in the human body and unhealthy affect it. This theory is partially confirmed by wave genetics. After listening to the matrices created by the laser apparatus, virtual quantum organs appear on which the organism begins to work.
 

Дэвид Айк в Москве

 

Кому интересно посетить или организовать выступление Дэвида Айка в Москве пишите 

 

 

Camera space Kozyrev

 

Vega indicator of torsion fields

 
Далее...
<< [Первая] < [Предыдущая] 1 2 3 4 5 6 7 8 9 10 [Следующая] > [Последняя] >>

Результаты 31 - 40 из 114