Abstract
We demonstrate temperature-controlled spectral tunability of a partially-pumped single-wavelength random laser in a solid-state random laser based on DCM [4-dicyanomethylene-2-methyl-6-(p-dimethylaminostyryl)-4H-pyran] doped PMMA (polymethyl methacrylate) dye. By carefully shaping the spatial profile of the pump, we first achieve a low-threshold, single-mode random lasing with an excellent side lobe rejection. Notably, we show how temperature-induced changes in the refractive index of the PMMA-DCM layer result in a blue shift of this single lasing mode. We demonstrate spectral tunability over an 8nm-wide bandwidth.
| Original language | English |
|---|---|
| Pages (from-to) | 4317-4326 |
| Number of pages | 10 |
| Journal | Optics Express |
| Volume | 32 |
| Issue number | 3 |
| DOIs | |
| State | Published - 29 Jan 2024 |
Bibliographical note
Publisher Copyright:© 2024 Optica Publishing Group (formerly OSA). All rights reserved.
Funding
Engineering and Physical Sciences Research Council (EPSRC[EP/V029975/1]); PICS-ALAMO; Planning and Budgeting Committee of the Council for Higher Education of Israel (2015-2018); United States-Israel Binational Science Foundation (BSF #2022158, NSF/BSF #2015694, NSF/BSF #2021811); Israel Science Foundation (1871/15, 2074/15, 2630/20). We extend our heartfelt appreciation to Dr. Leonid Wolfson for his unwavering dedication to the lab, and to Dr. Yossi Abulafia for his valuable assistance with the fabrication process. We are grateful to the Bar-Ilan Institute of Nanotechnology and Advanced Materials for providing us access to their fabrication facilities.
| Funders | Funder number |
|---|---|
| National Science Foundation | 2015694, 2021811 |
| Engineering and Physical Sciences Research Council | EP/V029975/1 |
| United States-Israel Binational Science Foundation | 2022158 |
| Israel Science Foundation | 2074/15, 1871/15, 2630/20 |
| Council for Higher Education | 2015-2018 |