Reflection of Plane Waves in a Semiconducting Medium under Photothermal Theory

Song, Ya Qin; Bai, Jintao; Ren, Zhaoyu

doi:10.1007/s10765-012-1239-4

Cited by 50 publications

(9 citation statements)

References 20 publications

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“…In the second case (Figs. (7)(8)(9)(10)(11)(12)), two different values of relaxation time 0 are considered. two different models of thermoelasticity can be reached as special cases of the existing photothermoelasticity with phase lags model.…”

Section: Case Ii: the Effect Of Relaxation Timementioning

confidence: 99%

“…In addition, the progress of semiconductor processes and fabrication over the last decades have made great efforts. The photoacoustic effect theory was developed in semiconductors for the bass region, taking into account the acoustic and phonon drag by the electron-hole couple diffusion flux [4][5][6][7][8][9][10][11][12][13]. A classic theoretical model for photoacoustic influence (PA) has been studied in the semiconductor system, which includes space charge on the semiconductor surface, thermoelastic, thermo-diffusion, and electronic deformation effects [14,15].…”

Section: Introductionmentioning

confidence: 99%

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Magneto-photo-thermoelastic Interactions in a Semiconductor Solid Cylinder Due to a Periodic Decaying Varying Heat

Abouelregal

Zenkour

2021

Preprint

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In this article, a generalized photo-thermoelastic model with relaxation time (GPTE) was introduced and applied to an infinite semiconductor body in the form of a solid cylinder. The cylinder and its adjoining vacuum are constrained exposed to periodic decaying varying heat and subjected to a uniform axial magnetic field. Analytical formulas of the physical quantities of the problem were obtained using Laplace transformations. A numerical method is used to find the inverse Laplace transforms. The effect of phase-lags, the temperature frequency on the derived expressions have been illustrated graphically and discussed.

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Section: Case Ii: the Effect Of Relaxation Timementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Magneto-photo-thermoelastic Interactions in a Semiconductor Solid Cylinder Due to a Periodic Decaying Varying Heat

Abouelregal

Zenkour

2021

Preprint

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“…Song et al [3,4] studied thermoelastic vibrations due to optically excited semiconductor microcantilevers. Complementing that, the reflections of plane waves in a semiconducting material upon photothermal theories [5,6] were also explored. Lotfy [7] investigated elastic wave propagation for a photothermoelastic medium under the influence of an internal heat source and gravitational field upon the dual-phase-lag (DPL) model.…”

Section: Introductionmentioning

confidence: 99%

The Effect of a Hyperbolic Two-Temperature Model with and without Energy Dissipation in a Semiconductor Material

Alzahrani

Abbas

2020

Mathematics

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In this work, the new model of photothermal and elastic waves, with and without energy dissipation, under a hyperbolic two-temperature model, is used to compute the displacement, carrier density, thermodynamic temperature, conductive temperature and stress in a semiconductor medium. The medium is considered in the presence of the coupling of plasma and thermoelastic waves. To get the complete analytical expressions of the main physical fields, Laplace transforms and the eigenvalue scheme are used. The outcomes are presented graphically to display the differences between the classical two-temperature theory and the new hyperbolic two-temperature theory, with and without energy dissipation. Based on the numerical results, the hyperbolic two-temperature thermoelastic theory offers a finite speed of mechanical waves and propagation of thermal waves.

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“…On the other hand, Song et al [9,10] study in detail the generalized thermoelastic vibrations due to optically excited semiconducting microcantilevers. They concluded that the plane wave reflection in a semiconducting material is under the theory of generalized thermoelasticity and photothermal theory [11,12].…”

Section: Introductionmentioning

confidence: 99%

Fractional Order Theory in a Semiconductor Medium Photogenerated by a Focused Laser Beam

Alzahrani

Abbas

2018

Phys Mesomech

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In this paper, the fractional order theory has been applied for thermal, elastic and plasma waves to determine the carrier density, displacement, temperature and stress in a semiconductor medium. The thermal, elastic and plasma waves in a semi-infinite medium photogenerated by a focused laser beam were analyzed. The Laplace transformation is used to express the governing equation and solved analytically by applying eigenvalue approach methodology in that domain. A semiconducting material like as silicon was considered. According to the numerical results and graphics, the fractional order parameter and thermal relaxation time may play an important role in the behavior of all physical quantities.Keywords Ñ èñïîëüçîâàíèåì äðîáíîãî èñ÷èñëåíèÿ äëÿ îïèñàíèÿ òåïëîâûõ, óïðóãèõ è ïëàçìåííûõ âîëí îïðåäåëåíû êîíöåíòðàöèÿ íîñèòåëåé çàðÿäà, ñìåùåíèÿ, òåìïåðàòóðà è íàïðÿaeåíèÿ â ìàòåðèàëå ïîëóïðîâîäíèêà. Ïðîâåäåí àíàëèç ðàñïðîñòðàíåíèÿ òåïëîâûõ, ïëàçìåííûõ è óïðóãèõ âîëí â ïîëóáåñêîíå÷íîé ñðåäå ïðè âîçäåéñòâèè ñôîêóñèðîâàííîãî ëàçåðíîãî ëó÷à. Ìåòîäîì ïðåîáðàçî-âàíèÿ Ëàïëàñà íàéäåíî îïðåäåëÿþùåå ñîîòíîøåíèå, êîòîðîå ðåøåíî àíàëèòè÷åñêè íà îñíîâå ñîáñòâåííîãî çíà÷åíèÿ â äàííîé îáëàñòè. Èññëåäîâàíèå ïðîâåäåíî äëÿ ìàòåðèàëà ïîëóïðîâîäíèêà ñî ñâîéñòâàìè êðåìíèÿ. Ðåçóëüòàòû èññëåäîâàíèÿ ïîêàçàëè, ÷òî äðîáíûé ïàðàìåòð ïîðÿäêà è âðåìÿ òåïëîâîé ðåëàêñàöèè ìîãóò ñèëüíî âëèÿòü íà èçìåíåíèå âñåõ ôèçè÷åñêèõ âåëè÷èí.Êëþ÷åâûå ñëîâà: äðîáíîå èñ÷èñëåíèå, ôîòîòåðìîóïðóãèå âîëíû, ïîäõîä íà îñíîâå ñîáñòâåííûõ çíà÷åíèé, ëàçåðíûé ëó÷, ïðåîáðàçîâàíèå Ëàïëàñà

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Reflection of Plane Waves in a Semiconducting Medium under Photothermal Theory

Cited by 50 publications

References 20 publications

Magneto-photo-thermoelastic Interactions in a Semiconductor Solid Cylinder Due to a Periodic Decaying Varying Heat

Magneto-photo-thermoelastic Interactions in a Semiconductor Solid Cylinder Due to a Periodic Decaying Varying Heat

The Effect of a Hyperbolic Two-Temperature Model with and without Energy Dissipation in a Semiconductor Material

Fractional Order Theory in a Semiconductor Medium Photogenerated by a Focused Laser Beam

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