Temperature-controlled spectral tuning of a single wavelength polymer-based solid-state random laser

Bhupesh Kumar, Sebastian A. Schulz, Patrick Sebbah

Research output: Contribution to journalArticlepeer-review

1 Scopus citations


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 languageEnglish
Pages (from-to)4317-4326
Number of pages10
JournalOptics Express
Issue number3
StatePublished - 29 Jan 2024

Bibliographical note

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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.

FundersFunder number
National Science Foundation2015694, 2021811
Engineering and Physical Sciences Research CouncilEP/V029975/1
United States-Israel Binational Science Foundation2022158
Israel Science Foundation2074/15, 1871/15, 2630/20
Council for Higher Education2015-2018


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