Calculation of the Current Response of the Spatially Modulated Light CMOS Detector
نویسندگان
چکیده
We present an analytical model that allows to calculate the current response of a spatially modulated light CMOS detector (SML-detector) and compare this response with the response of a traditional CMOS photodetector. It is shown that the SML detector already yields a three orders of magnitude faster response time than a traditional CMOS detector in a 0.25 m CMOS technology. This response time will further decrease as CMOS technology evolves. This analytical expression is compared with a numerical solution of the diffusion equation and with experimental results. Both show an excellent correspondence. Therefore we can conclude that the SML-detector is the solution of choice for cheap, CMOS-compatible receivers in integrated opto-electronic systems.
منابع مشابه
Numerical Calculation of the Evolution of the Carrier Distribution in the Spatially Modulated Light CMOS Detector
Abstract—The Spatially Modulated Light CMOS detector (SML CMOS detector) removes the slow part of the current response of a traditional CMOS photodetector, by using the difference between the signals of an immediate and a deferred detector. This slow part of the current response limits the maximum frequency of a photodetector in the conventional CMOS technology to a few MHz. Experimental eviden...
متن کاملExperimental Determination of the 3dB Frequency of the Spatially Modulated Light CMOS Detector as a Function of Technology
The Spatially Modulated Light CMOS detector (SML CMOS detector) has taken away the conventional speed limit linked with photodetectors implemented in standard CMOS technology [1-3]. High-speed light detectors can be integrated with the CMOS receiver circuitry on the same silicon wafer without the usage of hybrid technology nor additional process steps. This indicates that the SML-detector will ...
متن کاملشبیهسازی تابع پاسخ سوسوزنهای آلی به تابش گاما و نوترون با استفاده از کدهای مونت کارلوی FLUKA،MCNPX و SCINFUL
In organic scintillators, the energy distribution of gamma rays and neutrons is indirectly measured by the pulse height distribution of light output produced through gamma ray and neutron reactions in the detectors. Accurate estimate of the interaction of gamma and neutrons in the detector and produce charged secondary particles and subsequent scintillation light produced in the calculation of ...
متن کاملQuantum modeling of light absorption in graphene based photo-transistors
Graphene based optical devices are highly recommended and interested for integrated optical circuits. As a main component of an optical link, a photodetector based on graphene nano-ribbons is proposed and studied. A quantum transport model is presented for simulation of a graphene nano-ribbon (GNR) -based photo-transistor based on non-equilibrium Green’s function method. In the proposed model a...
متن کاملEfficient single-pixel multispectral imaging via non-mechanical spatio-spectral modulation
Combining spectral imaging with compressive sensing (CS) enables efficient data acquisition by fully utilizing the intrinsic redundancies in natural images. Current compressive multispectral imagers, which are mostly based on array sensors (e.g, CCD or CMOS), suffer from limited spectral range and relatively low photon efficiency. To address these issues, this paper reports a multispectral imag...
متن کامل