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Laser device characterization

YR Yong-Ho Ra
RR Roksana Tonny Rashid
XL Xianhe Liu
SS Sharif Md. Sadaf
KM Kishwar Mashooq
ZM Zetian Mi
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For electrical injection measurements, the InGaN device was placed on a motorized x-y stage (Aerotech’s ANT130-XYULTRA), which provided precise spatial mapping. The current-voltage characteristics of the device were performed by a source meter Keithley SMU-2400. The output power was measured using a Si photodiode sensor. Electroluminescence spectra were measured by a liquid nitrogen–cooled CCD attached to an iHR550 spectrometer with 1200 grooves/mm grating. The far-field images were captured by a high megapixel color CCD camera at a distance above the top surface of the device. The polarization was resolved by a Glan-Taylor calcite polarizer (with a High-Precision Rotation Mount) installed on the top surface of the device.

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This is an open-access article distributed under the terms of the Creative Commons Attribution-NonCommercial license, which permits use, distribution, and reproduction in any medium, so long as the resultant use is not for commercial advantage and provided the original work is properly cited.

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