Near-field radiative heat transfer between a sphere and a substrate

By A. Narayanaswamy, Sheng Shen, Gang Chen. 2008

216 citations recorded by the source corpus.

Near-field force and energy exchange between two objects due to quantum electrodynamic fluctuations give rise to interesting phenomena such as Casimir and van der Waals forces and thermal radiative transfer exceeding Planck’s theory of blackbody radiation. Although significant progress has been made in the past on the precise measurement of Casimir force related to zero-point energy, experimental demonstration of near-field enhancement of radiative heat transfer is difficult. In this work, we present a sensitive technique of measuring near-field radiative transfer between a microsphere and a substrate using a bimaterial atomic force microscope cantilever, resulting in “heat transfer-distance” curves. Measurements of radiative transfer between a sphere and a flat substrate show the presence of strong near-field effects resulting in enhancement of heat transfer over the predictions of the Planck blackbody radiation theory.

Subfields: Atomic and Molecular Physics, and Optics, Civil and Structural Engineering, Statistical and Nonlinear Physics

View Paper: https://www.semanticscholar.org/paper/c60c6c142f84ab402ac4d89a515b85fc1fbf9232

How researchers see this paper

The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

In Atomic and Molecular Physics, and Optics

1. Zhuomin M. Zhang
2. Liping Wang
3. Xianglei Liu
4. Boqin Zhao
5. M. Francoeur

In Civil and Structural Engineering

1. Zhuomin M. Zhang
2. Liping Wang
3. Xianglei Liu
4. Jean-Jacques Greffet
5. Boqin Zhao
6. A. McGaughey
7. M. Francoeur
8. M. Kaviany

In Statistical and Nonlinear Physics

1. Zhuomin M. Zhang
2. Liping Wang
3. Xianglei Liu
4. Jean-Jacques Greffet
5. Boqin Zhao

Citations in the corpus

• Review of near‐field thermal radiation and its application to energy conversion (2009, unknown): “[38] developed a sensitive technique for measuring near-field radiation between a silica microsphere and a glass substrate using bimaterial atomic force microscope cantilevers as thermal sensors.”
• Near-Field Thermal Radiation: Recent Progress and Outlook (2015, background): “In addition to bulk or periodic metamaterials, thermal radiation between two or more particles, such as sphere–sphere [96, 97], sphere–plane [98–103], cylinder–cylinder [104], arbitrary tip–tip [102], and many dipoles [105, 106], has attracted much attention due to the potential applications in loca”
• Radiative heat transfer at the nanoscale (2009, background): “The first measurements between two dielectric materials were reported by the MIT grou”