Holographic Interferometry

Mapping of three-dimensional temperature fields can be accomplished using principles of holography. An algorithm for evaluating holographic interferograms has been presented by Aparicio et al. [17] Applications of holographic interferometry to heat transfer can be seen in the work of Matulka and Collins [18], Shattuck et al. [19] Spatz and Poulikakos [20], and Shen and Poulikakos [21]. Beer [22] has reported interference fringes in growing steam and refrigerant bubbles from a heated surface. Temperature fields within the bubble also have been presented in this work. Faw and Dullforce [23] have investigated convective heat transfer beneath a heated horizontal plate in air using holographic interferometry. The application  of tomography to holographic interferometry has been reported by Ostendorf et al. [24]. Bahl and Liburdy [25] have studied three-dimensional temperature reconstruction above a horizontal  heated disk in air using holographic interferometry. Computerized holographic measurement in supersonic flow past bluff objects has been discussed by Lanen [26] and Lanen et al.[27]. The author of this article has experienced difficulties with the holographic route, primarily due to unavailability of the plates necessary for recording holograms. This has led to the route of storing interferograms on computers, followed by a tomographic inversion to recover the three-dimensional temperature field.