Resonant-cavity Schottky photodetectors with a grating profiled surface

A. Sellai*

*المؤلف المقابل لهذا العمل

نتاج البحث: المساهمة في مجلةConference articleمراجعة النظراء

5 اقتباسات (Scopus)

ملخص

Modeling of the optical response and quantum efficiency (QE) of a photodetector having a metal clad dielectric microcavity with periodic texturing of the top-metal electrode is examined at an optical communication wavelength (λ=1.3μm). It is shown that microstructuring the top-metal layer allows coupling to surface plasmons and leads to practically zero top reflectivity near normal incidence. This is significantly lower than that of a planar counterpart structure the top reflectivity of which is in excess of 90%. The calculated efficiency using a Monte Carlo method is compared with that obtained analytically to demonstrate the effect of elastic and inelastic carrier scattering on the overall yield. The variations of both the efficiency and the bandwidth as a function of the active layer thickness suggests that the increase in the QE when increasing the active layer width is much less important compared to the very pronounced decrease in the bandwidth.

اللغة الأصليةEnglish
الصفحات (من إلى)170-176
عدد الصفحات7
دوريةNuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
مستوى الصوت504
رقم الإصدار1-3
المعرِّفات الرقمية للأشياء
حالة النشرPublished - مايو 21 2003
الحدثProceedings of the 3rd International Conference on New Development - Beaune, France
المدة: يونيو ١٧ ٢٠٠٢يونيو ٢١ ٢٠٠٢

ASJC Scopus subject areas

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