Purcell enhanced laser action using a super-Tamm cavity mode
Optical Tamm structures have potential for the development of optoelectronic devices, provided they overcome the challenge of low-quality factor of modes and inherent losses associated with plasmonic metal films. In this work, we present lasing in a super-Tamm structure consisting of a silver thin film deposited on a 4-(dicyanomethylene)-2-methyl-6-(4- dimethylaminostyryl)-H-pyran (DCM) dye-doped polyvinyl alcohol (PVA) spacer layer coated on a SiO<sub>2</sub>/TiO<sub>2</sub> one-dimensional photonic crystal with a lasing threshold of ∼0.07 mJ. The spectral line narrowing and threshold characteristics observed in the emission spectrum corroborate the realization of a waveguided super-Tamm laser. The bi-exponential temporal decay profile of the Tamm lasing modes with an average lifetime of 0.52 ± 0.02 ns confirms the Purcell enhancement of radiative intensity of the DCM dye when coupled to the super-Tamm modes.
Authors
- Naorem Khelchand Singh (ORCID: https://orcid.org/0000-0003-3064-5646)
- Debamalya Banerjee (ORCID: https://orcid.org/0000-0002-8719-5511)
- S.N.B. Bhaktha (ORCID: https://orcid.org/0000-0003-4846-8262)
- S. Sudha Maria Lis
- Rajesh V. Nair (ORCID: https://orcid.org/0000-0001-5564-7264)
- Somnath Pandit (ORCID: https://orcid.org/0009-0002-6199-1023)
- S.K. Patra
- Faizan H. Lone
Institutions
- Indian Institute of Technology Ropar (IN)
- Indian Institute of Technology Kharagpur (IN)
Publication Details
- Journal
- Optics Letters
- Published
- 2025-02-20
- DOI
- https://doi.org/10.1364/ol.543288
- Citations
- 2
- Primary Topic
- Photonic Crystals and Applications
- Type
- article
- Field-Weighted Citation Impact
- 2.49
Funders
- Department of Science and Technology, Ministry of Science and Technology, India
- Science and Engineering Research Board