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Thermal sensing metasurface with programmable wave-front manipulation.
- Source :
-
Journal of Applied Physics . 8/21/2020, Vol. 128 Issue 7, p1-6. 6p. - Publication Year :
- 2020
-
Abstract
- Combining thermal field sensing with microwave manipulation has always been a widely pursued topic for metamaterials for some time. However, most temperature-sensitive designs for metamaterials and metasurfaces are still limited in the single absorption manipulation. In this paper, we present a metasurface with programmable wave-front modulation for distributed thermal sensing. An element integrated with a Positive-Intrinsic-Negative (PIN) diode was designed for 1-bit phase response control, while a column of thermistors was applied for the distributed thermal stimulus. When the thermistors in distinct positions sensed the heat, a voltage control circuit directly changed the on-off states of diodes, to generate specific scattering fields. To demonstrate this behavior, a metasurface sample with 25 × 27 elements was designed, fabricated, and measured using four patterns. The results show great consistency with the simulation data, thereby validating the design. [ABSTRACT FROM AUTHOR]
- Subjects :
- *VOLTAGE control
*THERMISTORS
*DIODES
Subjects
Details
- Language :
- English
- ISSN :
- 00218979
- Volume :
- 128
- Issue :
- 7
- Database :
- Academic Search Index
- Journal :
- Journal of Applied Physics
- Publication Type :
- Academic Journal
- Accession number :
- 145292769
- Full Text :
- https://doi.org/10.1063/5.0013008