Single transverse mode protein laser

Single transverse mode protein laser

Here, we report a single transverse mode distributed feedback (DFB) protein laser. The gain medium that is composed of enhanced green fluorescent protein in a silk fibroin matrix yields a waveguiding gain layer on a DFB resonator. The thin TiO2 layer on the quartz grating improves optical feedback d...

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Veröffentlicht in:Applied physics letters 2017-12, Vol.111 (23)
Hauptverfasser: Dogru, Itir Bakis, Min, Kyungtaek, Umar, Muhammad, Bahmani Jalali, Houman, Begar, Efe, Conkar, Deniz, Firat Karalar, Elif Nur, Kim, Sunghwan, Nizamoglu, Sedat
Format: Artikel
Sprache:eng
Schlagworte:
Applied physics
Fluorescence
Lasers
Optical feedback
Proteins
Refractivity
Silk
Silk fibroin
Titanium dioxide
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Beschreibung
Zusammenfassung:Here, we report a single transverse mode distributed feedback (DFB) protein laser. The gain medium that is composed of enhanced green fluorescent protein in a silk fibroin matrix yields a waveguiding gain layer on a DFB resonator. The thin TiO2 layer on the quartz grating improves optical feedback due to the increased effective refractive index. The protein laser shows a single transverse mode lasing at the wavelength of 520 nm with the threshold level of 92.1 μJ/ mm 2 .
ISSN:0003-6951
1077-3118
DOI:10.1063/1.5007243