Examples of using Second harmonic in English and their translations into Russian
{-}
-
Official
-
Colloquial
Second harmonic generation signal in the range of 362‒416 nm was almost fully absent.
This type of collagen did not give second harmonic generation signal on MPM images Figure 4(c).
Keywords: defects, nonclassic elastic nonlinearity, plastic deformation,spectral method, second harmonic.
By method of optical second harmonic generation on these lattices are evaluated by their performance.
In case of necessity, the spectral operating range can be easily expanded to the UV with the help of an external second harmonic generator model LG350.
At a dose of 40 Gy decrease of second harmonic signal retained in the extracellular matrix of the bladder wall.
In FM stereo broadcasting, a pilot tone of 19 kHz indicates that there is stereophonic information at 38 kHz 19×2, the second harmonic of the pilot.
Collagen is visualized due to second harmonic generation from the molecules having no center of symmetry 9, 10, 11.
Sister was the first in Moldova(with Y. S. Lyalikov),who applied the methods of ac polarography and second harmonic ac polarography for analyzing organic compounds.
In addition, other non-linear effects besides second harmonic generation may be used, such as third harmonic generation(THG) or polarization gating PG.
Keywords: cross-polarization optical coherence tomography; CP OCT; urothelial carcinoma; urothelial carcinoma recurrence; collagen state;nonlinear microscopy; second harmonic generation; atomic force microscopy.
It can m easure transformer' s first and second harmonic voltages, to facilitate the analysis of transformer failure.
We experimentally investigated dependence of the velocity of elastic waves on the external pressure andthe amplitude of the probe signal, and the amplitude of the second harmonic on the amplitude of the signal of fundamental frequency.
The structure of the spatial spectra from the second harmonic(SH) of yttrium-aluminum-garnet neodymium laser radiation during quasi-phase-matched generation is studied in a spatially inhomogeneous nonlinear medium.
For the first time there was studied the extracellular matrix state of the bladder connective tissue after radiotherapy by nonlinear microscopy carried out in the modes: second harmonic generation and two-photon excited autofluorescence to examine the state of collagen and elastin.
The method of nonlinear microscopy in second harmonic generation(SHG) mode allows imaging of collagen fibers in their normal condition and observation of the changes that occur during the process of inflammation and the development of neoplasia 10, 14.
In the proper mucous plate small elements were determined,giving a signal to generate second harmonic, which seemed to be incompletely destructed collagen-containing objects.
At present, application of two-photon excitation and second harmonic generation phenomena helps to solve a great number of experimental and clinical tasks ex vivo[14, 15] and in vivo[15, 16] in ophthalmology[17, 18], dermatology[19, 20], cardiology[21], and also in experimental and clinical oncology 22‒24.
Excitation was generated with a femtosecond Ti: Sapphire laser(MAI TAI HP, Spectra Physics, USA) at the wavelength of 800 nm,registration was performed in the range of 362-415 nm(second harmonic signal from collagen) and 512-576 nm signal of two-photon excited elastin autofluorescence.
According to the measured amplitudes of the first and second harmonics of the surface acoustic wave passing along the boundary, a second-order nonlinear acoustic parameter was calculated as a function of the external pressure applied to the sample.
The new design laser autodin Doppler anemometer(ADA) for definition of speed of separate particles of the aerosol, based on simultaneous use of two physical methods is offered: coherent autodin reception of an echo-signal andregistration of a signal(transformation of an optical signal to electric) on the second harmonic of radiation of the laser.
Sister made a substantial contribution to the development of such methods as the second harmonic ac polarography, the difference polarography with magnetic recording, the chromatopolarography.
The following spectral characteristics of the visualization system were used: excitation at 800 nm wavelength, registration in two wavelength spectral ranges: 362‒415 nm,which had a peak of nonlinear response at second harmonic(400 nm)[12], and 512‒576 nm, which corresponded to the range of autofluorescence of elastin under two-photon excitation 21.
Initial stage of polymerization shows amplitudes of first and second harmonics don't change practically but amplitude of third harmonic increases noticeably.
He has studied in detail the transformational properties of such holograms, determining the position of the, scale andcolor of the images as when generating images on the second harmonic of the recording laser hologram, and in the case of, When the wavelengths are different from each other and generate images on summary frequencies 27, 28.
The simulated grating patterns are reproduced on a glass by direct laser writing using the second harmonic(512 nm) of the AREAL high-intensity ultrafast laser and the high-precision, PC-controlled microfabrication station.
Annotation: The results of the work that consisted to form a periodically poled structure in KTP crystals andto investigate the device for second harmonic generation of laser radiation with a wavelength of 1064 nm in the crystal elements based on highresistive periodically poled KTP crystals.
Investigation of nonlinear elastic properties of the test material were done using two methods:a dynamic spectral method according to the efficiency of generation of the second harmonic in the acoustic wavefield of finite amplitude at a frequency of 5 MHz and quasistatic method by measuring the change of velocity of acoustic waves in the sample as a function of the applied static pressure to it.
The second model is a harmonic artistic transformation of the first model.
Separately the cases of stable propagation of two-component three-dimensional light bullets,as well as the formation of the beam pulse by generating the second optical harmonic.