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Control of lasing in biomimetic structures with short-range order
Heeso Noh1, Jin-Kyu Yang, Seng Fatt Liew
1Department of Applied Physics, Yale University, New Haven, Connecticut 06520, USA.
Physical Review Letters
|June 4, 2011
Summary
We show how to improve laser light emission using photonic amorphous structures, inspired by natural noniridescent colors. Short-range order in these nanostructures enhances optical confinement, optimizing laser efficiency and frequency tuning.
Area of Science:
- Photonics
- Materials Science
- Optics
Background:
- Noniridescent color in nature arises from isotropic nanostructures.
- Photonic amorphous structures offer tunable optical properties.
Purpose of the Study:
- To demonstrate and analyze lasing in photonic amorphous structures.
- To investigate the role of short-range order in enhancing lasing efficiency.
- To explore tuning the optimal lasing frequency.
Main Methods:
- Experimental fabrication and characterization of photonic amorphous structures.
- Numerical simulations to study optical confinement and lasing properties.
- Analysis of the relationship between structure factor and lasing frequency.
Main Results:
- Lasing was successfully demonstrated in the designed amorphous structures.
- Lasing efficiency was found to be maximal at specific frequencies due to enhanced optical confinement.
- The optimal lasing frequency was tunable by adjusting the structure factor.
Conclusions:
- Short-range order is a key factor for improving and controlling lasing in nanostructures.
- Photonic amorphous structures provide a versatile platform for tunable laser applications.
- This research offers insights into bio-inspired photonics for advanced optical devices.
