Three-dimensional laminated photon crystal implementing thermal radiation optical spectrum control
A photonic crystal and thermal radiation technology, applied in the field of thermal radiation spectrum control, can solve problems such as limited adjustability, and achieve the effects of outstanding practicability, enhanced adjustability, and convenient spectral control characteristics.
Inactive Publication Date: 2009-06-10
NANJING UNIV OF SCI & TECH
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Problems solved by technology
The above two typical periodic microstructures can be used to control the spectrum of thermal radiation, but their common disadvantage is that they can only control the spectrum of thermal radiation in one direction, and the adjustability is very limited.
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[0015] The present invention will be described in further detail below in conjunction with the accompanying drawings.
[0016] combine figure 1 and figure 2 , the three-dimensional laminated photonic crystal that realizes thermal radiation spectrum control in the present invention includes a horizontal layer 1 composed of four or more metal rods arranged in parallel and equally spaced horizontally and a longitudinal layer composed of four or more metal rods arranged in parallel and equally spaced longitudinally. Layer 2, the horizontal layer 1 and the vertical layer 2 are stacked alternately to form a three-dimensional structure whose number of layers is an integer multiple of 4, and a medium layer 3 is arranged between the horizontal layer 1 and the vertical layer 2.
[0017] For the method of realizing the three-dimensional laminated photonic crystal controlled by the thermal radiation spectrum of the present invention, for the convenience of description, firstly define a ...
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The present invention relates to a three dimensional cascade photonic crystal for achieving the spectrum control of thermal radiation and comprises a transverse layer consisting of four or more than four metal bar in transverse, parallel and equidistant arrangement and a vertical layer consisting of four or more than four metal bars in vertical, parallel and equidistant arrangement; the transverse layer and the vertical layer are mutually alternate and overlaid to a three dimensional structure; the number of the layers of three dimensional structure is the integral multiple of four; a dielectric layer is arranged between the transverse layer and the vertical layer. The invention can achieve spectrum control in all directions of space; as the three directions of the space of the microstructure has periodicity, the spectrum control in all directions of space can be achieved; the adjustability of spectrum control can be greatly strengthened; as dielectric material layers with certain thickness are inserted between the metal bars and through changing the thickness or the dielectric material of the dielectric layer, the property of spectrum control can be adjusted conveniently.
Description
A technical field [0001] The invention belongs to the field of thermal radiation spectrum control and can be used in thermoelectric conversion technology, light source technology, target stealth and other technologies related to thermal radiation spectrum control, in particular a three-dimensional laminated photonic crystal that can realize thermal radiation spectrum control. Two background technology [0002] The use of periodic microstructures to realize thermal radiation spectrum control is a new type of thermal radiation spectrum control method developed in recent years. Compared with the traditional method, this new method has the advantages of good control characteristics, flexible control method, and wide application range, and can be widely used in thermoelectric conversion technology, energy-saving technology, light source technology, laser technology, and target stealth technology. [0003] The periodic microstructure is the key to the control of the thermal radiat...
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IPC IPC(8): G02B6/122C30B29/60C30B29/02G02F1/00G05D25/00
Inventor 宣益民韩玉阁李强刘广平
Owner NANJING UNIV OF SCI & TECH