Real-Time High Resolution Integrated Optical Micro-Spectrometer
作者： Sabarish Chandramohan
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摘要: REAL-TIME HIGH RESOLUTION INTEGRATED OPTICAL MICRO- SPECTROMETER by SABARISH CHANDRAMOHAN AUGUST 2014 Advisor: Dr. Ivan Avrutsky Major: Electrical Engineering Degree: Master of Science A real-time integrated planar single-mode waveguide grating micro-spectrometer with high resolution 0.5 nm in 120 wide range visible spectrum, from 525 to 645 is demonstrated. CMOS sensor used for capturing the output image micro-spectrometer. f = 1cm lens focus diffracted monochromatic light onto sensor. An algorithm developed using simple polynomial equation which uses two known reference wavelengths convert x-pixel numbers wavelength spectrum. The this design has comparatively less noise than usual spectrometric measurements. This built-in matlab functions such as 'findpeaks' find input laser peaks and central pixel that 'polyfit' coefficients essential calibration
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