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Dye‐Doped Mesostructured Silica as a Distributed Feedback Laser Fabricated by Soft Lithography
Author(s) -
Scott B. J.,
Wirnsberger G.,
McGehee M. D.,
Chmelka B. F.,
Stucky G. D.
Publication year - 2001
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/1521-4095(200108)13:16<1231::aid-adma1231>3.0.co;2-8
Subject(s) - materials science , lasing threshold , laser , grating , optoelectronics , soft lithography , doping , ridge , silicon , lithography , optics , dye laser , fabrication , wavelength , medicine , paleontology , physics , alternative medicine , pathology , biology
Distributed feedback (DFB) lasers were made on silicon substrates by using elastomeric stamps to pattern dye‐doped mesostructured silica into ridge waveguides with a grating on top. The emission spectra of the lasers have several peaks with a full width at half maximum of 0.3 nm (see Figure). The lasers were photopumped and had a lasing threshold intensity of ∼55 kW/cm 2 .