DOI: 10.1063/1.3158063. Fast, spatially resolved thermometry of Si and GaP crystals using pump-probe two-photon absorption

Fast, spatially resolved thermometry of Si and GaP crystals using pump-probe two-photon absorption

10.1063/1.3158063

Crossref journal-article

AIP Publishing

Journal of Applied Physics (317)

Abstract

Noncontact thermometry with micron-scale lateral spatial resolution and fast time resolution is shown to be enabled by measuring the temperature dependence of two-photon absorption (TPA) on crystalline semiconductors. In the proof-of-concept experiments reported here, for studies of Si, an Er:fiber laser at λ=1.56 μm is split into pump and probe beams; where they overlap, the large TPA signal changes strongly with temperature because the two-photon energy lies between the indirect and direct bandgaps of Si. We show that the TPA coefficient increases by a factor of 2 when the temperature increases from 30 to 300 °C. For studies of GaP, we use instead a Ti:sapphire laser at 790 nm to achieve two-photon excitation above the direct bandgap. In GaP, contributions to the TPA from the dominant direct transition show less temperature dependence than for Si but the additional contribution of the indirect transition gives a similar magnitude as the temperature dependence of TPA on Si. In the current implementation using Si, the spatial resolution of the thermometry is 6×6×50 μm3 and the sensitivity is 0.6 K in a 1 kHz bandwidth.

Bibliography

Min, C.-K., Park, J. Y., Cahill, D. G., & Granick, S. (2009). Fast, spatially resolved thermometry of Si and GaP crystals using pump-probe two-photon absorption. Journal of Applied Physics, 106(1).

Authors 4

Chang-Ki Min (first)
Ji Yong Park (additional)
David G. Cahill (additional)
Steve Granick (additional)

References 20 Referenced 5

10.1063/1.1524305 / J. Appl. Phys. (2003)
10.1016/S1369-7021(05)70935-4 / Mater. Today (2005)
{'volume-title': 'Theory and Practice of Radiation Thermometry', 'year': '1988', 'key': '2023070601203710600_c3'} / Theory and Practice of Radiation Thermometry (1988)
10.1063/1.2738946 / Rev. Sci. Instrum. (2007)
10.1063/1.1148174 / Rev. Sci. Instrum. (1997)
10.1016/j.apsusc.2007.07.086 / Appl. Surf. Sci. (2007)
10.1063/1.124271 / Appl. Phys. Lett. (1999)
10.1109/16.108215 / IEEE Trans. Electron Devices (1992)
{'volume-title': 'Semiconductors', 'year': '1978', 'key': '2023070601203710600_c9'} / Semiconductors (1978)
10.1063/1.1819431 / Rev. Sci. Instrum. (2004)
10.1115/1.1454111 / ASME J. Heat Transfer (2002)
10.1063/1.2714048 / Rev. Sci. Instrum. (2007)
10.1109/3.283768 / IEEE J. Quantum Electron. (1994)
10.1103/PhysRev.178.1295 / Phys. Rev. (1969)
10.1364/OL.14.000057 / Opt. Lett. (1989)
10.1063/1.2768632 / Appl. Phys. Lett. (2007)
10.1002/pssa.2210850124 / Phys. Status Solidi A (1984)
10.1103/PhysRev.111.1245 / Phys. Rev. (1958)
10.1143/JPSJ.52.1057 / J. Phys. Soc. Jpn. (1983)
10.1063/1.1710170 / J. Appl. Phys. (1967)

Dates

Type	When
Created	16 years, 1 month ago (July 8, 2009, 6:29 p.m.)
Deposited	2 years, 1 month ago (July 5, 2023, 11:10 p.m.)
Indexed	3 weeks, 1 day ago (July 30, 2025, 6:53 a.m.)
Issued	16 years, 1 month ago (July 1, 2009)
Published	16 years, 1 month ago (July 1, 2009)
Published Online	16 years, 1 month ago (July 8, 2009)
Published Print	16 years, 1 month ago (July 1, 2009)

Funders 0

None

BibTeX

@article{Min_2009, title={Fast, spatially resolved thermometry of Si and GaP crystals using pump-probe two-photon absorption}, volume={106}, ISSN={1089-7550}, url={http://dx.doi.org/10.1063/1.3158063}, DOI={10.1063/1.3158063}, number={1}, journal={Journal of Applied Physics}, publisher={AIP Publishing}, author={Min, Chang-Ki and Park, Ji Yong and Cahill, David G. and Granick, Steve}, year={2009}, month=jul }

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