Effect of beam sizes on the amplitude and phase of photothermal deflection signals for both uniform and nonuniform heating

被引：22

作者：

Gaied, Imen ^{[1
]}

Amara, Aymen ^{[1
]}

Yacoubi, Noureddine ^{[1
]}

Ghrib, Taher ^{[1
]}

机构：

[1] Inst Preparatoire Etudes Ingn Nabeul, Nabeul 8000, Tunisia

来源：

APPLIED OPTICS | 2008年 / 47卷 / 08期

关键词：

D O I：

10.1364/AO.47.001054

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A detailed theoretical treatment of a one-(1D) and three-dimensional (3D) photothermal deflection (PTD) technique is presented. Important effects of the probe beam size occur in PTD experiments when the radius of this beam is of the order of magnitude of the thermal diffusion length. The calculation of this effect is checked by experiments in paraffin oil at low modulation frequency as well as for 1D and for 3D. In this last case, we have considered two kinds of deflection: normal and transverse, and we have studied their variation for different values of the pump beam radius. The coincidence between theoretical and experimental curves confirms the validity of our theoretical model. (c) 2008 Optical Society of America.

引用

页码：1054 / 1062

页数：9

共 13 条

[1] PHOTOTHERMAL MEASUREMENTS USING A LOCALIZED EXCITATION SOURCE [J].

AAMODT, LC ;

MURPHY, JC .

JOURNAL OF APPLIED PHYSICS, 1981, 52 (08) :4903-4914

[2] Analysis of the photothermal deflection technique in the surface reflection scheme: Theory and experiment [J].

Bertolotti, M ;

Liakhou, GL ;

Li Voti, R ;

Paoloni, S ;

Sibilia, C .

JOURNAL OF APPLIED PHYSICS, 1998, 83 (02) :966-982

[3] THERMOOPTICAL SPECTROSCOPY - DETECTION BY THE MIRAGE EFFECT [J].

BOCCARA, AC ;

FOURNIER, D ;

BADOZ, J .

APPLIED PHYSICS LETTERS, 1980, 36 (02) :130-132

[4]

DANGOISSE D, 1998, LASER

[5] Fibre optic position sensitive detection of photothermal deflection [J].

George, NA .

APPLIED PHYSICS B-LASERS AND OPTICS, 2003, 77 (01) :77-80

[6] Simultaneous determination of thermal conductivity and diffusivity of solid samples using the "Mirage effect" method [J].

Ghrib, Taher ;

Yacoubi, Noureddine ;

Saadallah, Faycel .

SENSORS AND ACTUATORS A-PHYSICAL, 2007, 135 (02) :346-354

[7] PHOTOTHERMAL DEFLECTION SPECTROSCOPY AND DETECTION [J].

JACKSON, WB ;

AMER, NM ;

BOCCARA, AC ;

FOURNIER, D .

APPLIED OPTICS, 1981, 20 (08) :1333-1344

[8]

LEGALLASALLE E, 1988, J APPL PHYS, V64, P1

[9] PHOTOTHERMAL SPECTROSCOPY USING OPTICAL BEAM PROBING - MIRAGE EFFECT [J].

MURPHY, JC ;

AAMODT, LC .

JOURNAL OF APPLIED PHYSICS, 1980, 51 (09) :4580-4588

[10]

ROHLING JH, 1988, J APPL PHYS, V64, P1

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