Personal Information
Gender:
MaleDiscipline:
Acoustics. Optics. Condensed Matter PhysicsEducation Level:
With Certificate of Graduation for Doctorate StudyDiscipline:
1 Acoustics;
1 Optics;
1 Condensed Matter Physics
Other Contact Information
-
ZipCode
-
PostalAddress
-
email
Publications
Current position: English > Research > Publications
Ultra-broadband directional thermal emission
- Time:2024-04-28
- Hits:
-
Journal:
Nanophotonics -
Abstract:
Directional control of thermal emission over its broad wavelength range is a fundamental challenge. Gradient epsilon-near-zero (ENZ) material supporting Berreman mode has been proposed as a promising approach. However, the bandwidth is still inherently limited due to the availability of ENZ materials covering a broad bandwidth and additional undesired omnidirectional modes in multilayer stacking with increased thickness. Here, we show that broadband directional thermal emission can be realized beyond the previously considered epsilon-near-zero and Berreman mode region. We then establish a universal approach based on effective medium theory to realizing ultra-broadband directional thermal emitter. We numerically demonstrate strong (emissivity >0.8) directional (80 ± 5°) thermal emission covering the entire thermal emission wavelength range (5–30 μm) by using only two materials. This approach offers a new capability for manipulating thermal emission with potential applications in high-efficiency information encryption, energy collection and utilization, thermal camouflaging, and infrared detection. -
Indexed by:
Journal paper -
Volume:
13 -
Issue:
5 -
Page Number:
793–801 -
Translation or Not:
no -
Date of Publication:
2024-01-16 -
Links to published journals:
https://www.degruyter.com/document/doi/10.1515/nanoph-2023-0742/html