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Near-infrared imprinted distributed feedback lasers
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10.1063/1.2387974
/content/aip/journal/apl/89/20/10.1063/1.2387974
http://aip.metastore.ingenta.com/content/aip/journal/apl/89/20/10.1063/1.2387974
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

IR-140 ASE (dotted line) and imprinted DFB laser emission (solid line) spectra at excitation fluence above the lasing threshold. Top inset: AFM topographic view of the patterned dye-doped PMMA grating . Bottom inset: molecular structure of IR-140.

Image of FIG. 2.
FIG. 2.

DFB peak emission intensity vs fluence of the absorbed excitation beam. The solid line is a linear fit to the input-output characteristics above the lasing theshold. Inset: device tunability. Peaks at (A) and (C) were obtained from structures with a grating period of 580 and , respectively.

Image of FIG. 3.
FIG. 3.

Polarized PL spectra: polarization components parallel (dashed line) and perpendicular (continuous line) to the grating lines. Inset: dependence of the output intensity on the angle between the polarizer axis and the grating grooves; the solid line is a fit to the data by the Malus law.

Image of FIG. 4.
FIG. 4.

Temporal evolution of the laser emission when exposed in air (full circles) or vacuum (empty circles) conditions (excitation fluence of ). The solid lines are a fit to the experimental data with an exponential function. Inset: wavelength of the DFB laser peak vs exposure time.

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/content/aip/journal/apl/89/20/10.1063/1.2387974
2006-11-13
2014-04-24
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Near-infrared imprinted distributed feedback lasers
http://aip.metastore.ingenta.com/content/aip/journal/apl/89/20/10.1063/1.2387974
10.1063/1.2387974
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