Experimental setup for recording digital holograms; M: mirror; MO: microscope objective; PH: pinhole; BS: beam splitter; and TL: telecentric lens.
(a) Reference hologram recorded before the testing glass being heated; (b) Hologram recorded when the glass sample is heated by electric iron; (c) the spatial spectrum of (a) and the first class frequency spectrum in the rectangle region.
The reconstructed two-dimensional wrapped phase maps during heating process in glass sample at different time.
Reconstructed two-dimensional wrapped phase distribution of the air flow field around the electric iron head.
(a)–(c) Three reconstructed temperature distributions of the heat conduction process in glass sample; (d) temperature values along the white dashed lines A, B, C in (a)–(c), respectively; and (e) numerical simulation result of the temperature distribution of the heat conduction process in glass (enhanced online). [URL: http://dx.doi.org/10.1063/1.4712318.1] [URL: http://dx.doi.org/10.1063/1.4712318.2] [URL: http://dx.doi.org/10.1063/1.4712318.3]10.1063/1.4712318.110.1063/1.4712318.210.1063/1.4712318.3
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