Transmission function of the collinear acousto-optical filter controlled by acoustic waves of the finite amplitude

Shcherbakov, Alexandre S.; Arellanes, Adán Omar; Немов, С. А.

doi:10.1117/1.oe.52.6.064001

Cited by 9 publications

(7 citation statements)

References 9 publications

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“…A SrMoO 4 crystal sample of 5×5×2 mm 3 is well suited for investigation of temperature-dependent scintillator properties as documented in various publications [13], [23].…”

Section: Methodsmentioning

confidence: 99%

“…This is driven by a variety of applications as optoelectronic devices such as solid-state lighting [1], [2], acousto-optical elements [3] and lasers hosts [4]. This is due to the combination of appealing physical properties like transparency, ability to accommodate dopants, mechanical and chemical stability as well as availability of technology for production of large single crystals [5].…”

Section: Introductionmentioning

confidence: 99%

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Temperature dependence of scintillation properties of SrMoO4

Mikhailik

Elyashevskyi

Kraus

et al. 2015

Nuclear Instruments and Methods in Physics Research Section A:

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Studies of the X-ray luminescence and scintillation properties of a SrMoO 4 crystal as function of temperature down to T=10 K have been carried out. The luminescence in SrMoO 4 is quenched at room temperature, but below T<200 K the crystal exhibits a broad emission band with a maximum at a wavelength of 520 nm. The emission is attributed to the radiative decay of self-trapped excitons and defects acting as traps for the exactions at low temperatures. Such complex character of radiative decay is reflected in the kinetics which contains several components plus a contribution from delayed recombination at low temperatures. The temperature dependence of scintillation light output of SrMoO 4 was studied. Comparing with a reference ZnWO 4 crystal measured under the same experimental conditions it was found that the light output of SrMoO 4 is 15±5%. It is suggested, therefore, that there is scope for optimisation of strontium molybdate for application as scintillator in cryogenic rare event searches.

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“…A SrMoO 4 crystal sample of 5×5×2 mm 3 is well suited for investigation of temperature-dependent scintillator properties as documented in various publications [13], [23].…”

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Temperature dependence of scintillation properties of SrMoO4

Mikhailik

Elyashevskyi

Kraus

et al. 2015

Nuclear Instruments and Methods in Physics Research Section A:

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show abstract

“…, which combines contributions of the material and the acoustic power, where M 2 is the figure of AO merit and P is the acoustic power density [12] [13] were analyzed for a triplet of the relative frequency bandwidths Δf/f 0 = 0, 0.25, and 0.5 (here, f 0 is the central acoustic frequency within the bandwidth ∆f [14].…”

Section: Efficiency Of Normal Light Scattering With a Given Bandwidthmentioning

confidence: 99%

“…and ne are the corresponding refractive indices, ρ = 4.7 g/cm3 is the material density of a lithium niobate crystal, and p eff is the corresponding effective photo-elastic constant. To determine the magnitudes of both p eff and M 2 one can apply the recently developed approach[13] to the case of the slowest shear acoustic wave passing along the [100]-axis in a LiNbO 3 -crystal with the displacement vector is oriented along the direction 35˚ to the [010]-axis. As a result, the maximum value of photo-elastic constant is |p eff,max | ≈ 0.15, while the maximum for M 2 depends radically on the magnitude of the available refractive indices as well.…”

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confidence: 99%

An Advanced Multi-Band Acousto-Optical Radio-Wave Spectrometer with Multi-Channel Frequency Processing for Astrophysical Studies

Shcherbakov¹,

Dagostino²,

Arellanes³

et al. 2016

IJAA

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We present an advanced schematic arrangement of the radio-wave spectrometer with a few parallel optical arms for processing the data flow. This arrangement includes two principal novelties. First of them consists in the proposed design, where each individual optical arm exhibits its original performances providing parallel multi-band observations within a few different scales simultaneously. These optical arms have the beam shapers providing both the needed incident light polarization and apodization to increase the dynamic range. After parallel acousto-optical processing, data flows of all the optical arms are united by the joint CCD matrix on the stage of the combined electronic data processing. The second novelty is in usage of unique wideaperture bastron-based acousto-optical cell providing one of the best performances at the middle-frequencies (about 500 MHz) in comparison with the other available crystalline materials in this range. Such multi-band capabilities have a number of applications in astrophysical scenarios at different scales: from objects in the distant universe to planetary atmospheres in the Solar system. Thus one yields the united versatile instrument, which provides comprehensive studies of astrophysical objects simultaneously with precise synchronization in various frequency ranges.

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“…Хорошие оптические свойства, химическая инертность обуслови-ли их применение в виде различных оптоэлектронных элементов в различных устройствах [1][2][3], лазерных решеток [4]. С развитием технологий криогенного де-тектирования интерес к соединениям молибдатов воз-рос, а CaMoO 4 наиболее используемый материал для некоторых устройств.…”

Section: Introductionunclassified

Влияние решеточного и спин-фононного вкладов на температурное поведение расщепления основного состояния Gd-=SUP=-3+-=/SUP=- в SrMoO-=SUB=-4-=/SUB=-

Горлов¹

2018

Физика Твердого Тела

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The temperature behavior of the EPR spectra of the Gd^3+ impurity center in single crystals of SrMoO_4 in the temperature range T = 99–375 K is studied. The analysis of the temperature dependences of the spin Hamiltonian b _2 ^0 ( T ) = b _2( F ) + b _2( L ) and P _2 ^0 ( T ) = P _2( F ) + P _2( L ) (for Gd^157) describing the EPR spectrum and contributing to the Gd^3+ ground state splitting Δ E is carried out. In terms of the Newman model, the values of b _2( L ) and P _2( L ) depending on the thermal expansion of the static lattice are estimated; the b _2( F ) and P _2( F ) spin-phonon contributions determined by the lattice ion oscillations are separated. The analysis of b _2 ^0 ( T ) and P _2 ^0 ( T ) is evidence of the positive contribution of the spin-phonon interaction; the model of the local oscillations of the impurity cluster with close frequencies ω describes well the temperature behavior of b _2( F ) and P _2( F ).

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Transmission function of the collinear acousto-optical filter controlled by acoustic waves of the finite amplitude

Cited by 9 publications

References 9 publications

Temperature dependence of scintillation properties of SrMoO4

Temperature dependence of scintillation properties of SrMoO4

An Advanced Multi-Band Acousto-Optical Radio-Wave Spectrometer with Multi-Channel Frequency Processing for Astrophysical Studies

Влияние решеточного и спин-фононного вкладов на температурное поведение расщепления основного состояния Gd-=SUP=-3+-=/SUP=- в SrMoO-=SUB=-4-=/SUB=-

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