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1.发明申请METHOD AND APPARATUS FOR IMPROVED SIGNAL TO NOISE RATIO IN RAMAN SIGNAL DETECTION FOR MEMS BASED SPECTROMETERS 审中-公开用于基于MEMS的光谱仪的拉曼信号检测中的改进的信号与噪声比的方法和设备
公开(公告)号：WO2008094290A3
公开(公告)日：2008-12-24
申请号：PCT/US2007072739
申请日：2007-07-03
Applicant: GEN ELECTRIC , MAITY SANDIP , BANERJEE AYAN , ZRIBI ANIS , KENNERLY STACEY , QUE LONG , CLAYDON GLENN , CHANDRASEKARAN SHANKAR , GORAVAR SHIVAPPA
Inventor： MAITY SANDIP , BANERJEE AYAN , ZRIBI ANIS , KENNERLY STACEY , QUE LONG , CLAYDON GLENN , CHANDRASEKARAN SHANKAR , GORAVAR SHIVAPPA
CPC classification number: G01J3/44 , G01J1/44 , G01J3/02 , G01J3/0229 , G01J3/0232 , G01J3/0256 , G01J3/0264 , G01J3/0272 , G01J3/0286 , G01J3/0297 , G01J3/1895 , G01J3/4338 , G02B26/04 , H01L31/107
Abstract: A method of Raman detection for a portable, integrated spectrometer instrument includes directing Raman scattered photons by a sample to an avalanche photodiode (APD), the APD configured to generate an output signal responsive to the intensity of the Raman scattered photons incident thereon. The output signal of the APD is amplified and passed through a discriminator so as to reject at least one or more of amplifier noise and dark noise. A number of discrete output pulses within a set operational range of the discriminator is counted so as to determine a number of photons detected by the APD.
Abstract translation: 用于便携式集成光谱仪仪器的拉曼检测方法包括通过样品将拉曼散射光子引导至雪崩光电二极管（APD），所述APD被配置成响应于入射在其上的拉曼散射光子的强度而产生输出信号。 APD的输出信号被放大并通过鉴别器，以至少抑制放大器噪声和暗噪声中的一个或多个。 对鉴别器的设定操作范围内的多个离散输出脉冲进行计数，以确定由APD检测到的光子数量。
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公开(公告)号：DE102011001189A8
公开(公告)日：2012-01-05
申请号：DE102011001189
申请日：2011-03-10
Applicant: GEN ELECTRIC
Inventor： CHANDRASEKARAN SHANKAR , GORAVAR SHIVAPPA , VIRTANEN JUHA
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公开(公告)号：DE112007001738T5
公开(公告)日：2009-05-28
申请号：DE112007001738
申请日：2007-07-03
Applicant: GEN ELECTRIC
Inventor： MAITY SANDIP , BANERJEE AYAN , ZRIBI ANIS , KENNERLY STACEY , QUE LONG , CLAYDON GLENN , CHANDRASEKARAN SHANKAR , GORAVAR SHIVAPPA
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