Near-Infrared Photon Emission Spectroscopy Trends in Scaled SOI Technologies

2012 ◽  
Author(s):  
Ulrike Kindereit ◽  
Alan J. Weger ◽  
Franco Stellari ◽  
Peilin Song ◽  
Hervé Deslandes ◽  
...  
Keyword(s):  
Ambient Temperature ◽  
Spectral Range ◽  
Emission Spectroscopy ◽  
Near Infrared ◽  
Signal To Noise Ratio ◽  
Photon Emission ◽  
Process Technology ◽  
Signal To Noise ◽  
Infrared Photon ◽  
Maximum Signal

Abstract In this paper, near-infrared photon emission spectroscopy measurements from ring oscillators in 45 nm and 32 nm SOI process technology are compared. Employing a cryogenically cooled camera, the measurements cover a broad spectral range from 1200-2200 nm. Both leakage and switching emission, increase monotonically with the wavelength, suggesting measurements should be made at longer wavelengths than has historically been practiced. The paper discusses the optimum cut-off wavelength for maximum signal-to-noise ratio and the obvious importance of reduced ambient temperature for performing measurements.

A double-pass Sisam spectrometer for the near infrared

1975 ◽  
Vol 346 (1646) ◽  
pp. 395-412 ◽  
Keyword(s):  
Spectral Range ◽  
Near Infrared ◽  
Signal To Noise Ratio ◽  
Signal To Noise ◽  
Double Pass ◽  
Optical Components ◽  
Common Axis ◽  
Noise Ratio ◽  
Real Gain

A double-pass Sisam spectrometer of simplified design is described in which the two gratings rotate about a common axis. Sample spectra are given and the performance of the instrument is assessed and compared with that predicted theoretically. A resolution of 0.05 cm -1 has been achieved at 1.6 µm, corresponding to 90% of the maximum theoretically attainable with the gratings and configuration used. This performance was maintained over a continuously scanned spectral range of 500 cm -1 without realignment of the optical components. The instrument thus offers a real gain in signal-to-noise ratio over the equivalent, practical slit spectrometer of a factor of between 30 and 1000.

Near-infrared photon emission spectroscopy of a 45 nm SOI ring oscillator

2012 ◽  
Author(s):  
Ulrike Kindereit ◽  
Alan J. Weger ◽  
Franco Stellari ◽  
Peilin Song ◽  
Herve Deslandes ◽  
...  
Keyword(s):  
Emission Spectroscopy ◽  
Near Infrared ◽  
Photon Emission ◽  
Ring Oscillator ◽  
Infrared Photon

An Over 120dB Dynamic Range Linear Response Single Exposure CMOS Image Sensor with Two-stage Lateral Overflow Integration Trench Capacitors

2020 ◽  
Vol 2020 (7) ◽  
pp. 143-1-143-6 ◽  
Author(s):  
Yasuyuki Fujihara ◽  
Maasa Murata ◽  
Shota Nakayama ◽  
Rihito Kuroda ◽  
Shigetoshi Sugawa
Keyword(s):  
Linear Response ◽  
Dynamic Range ◽  
Signal To Noise Ratio ◽  
Cmos Image Sensor ◽  
Image Sensor ◽  
Signal To Noise ◽  
Single Exposure ◽  
Two Stage ◽  
Noise Ratio ◽  
Maximum Signal

This paper presents a prototype linear response single exposure CMOS image sensor with two-stage lateral overflow integration trench capacitors (LOFITreCs) exhibiting over 120dB dynamic range with 11.4Me- full well capacity (FWC) and maximum signal-to-noise ratio (SNR) of 70dB. The measured SNR at all switching points were over 35dB thanks to the proposed two-stage LOFITreCs.

scholarly journals Evaluation of Measurement Sites for Noninvasive Blood Glucose Sensing with Near-Infrared Transmission Spectroscopy

1999 ◽  
Vol 45 (9) ◽  
pp. 1621-1627 ◽  
Author(s):  
Jason J Burmeister ◽  
Mark A Arnold
Keyword(s):  
Blood Glucose ◽  
Body Fat ◽  
Near Infrared ◽  
Signal To Noise Ratio ◽  
Glucose Sensing ◽  
Infrared Transmission ◽  
Signal To Noise ◽  
Lower Lip ◽  
Percentage Of Body Fat ◽  
Noise Ratio

Abstract Six putative measurement sites were evaluated for noninvasive sensing of blood glucose by first-overtone near-infrared spectroscopy. The cheek, lower lip, upper lip, nasal septum, tongue, and webbing tissue between the thumb and forefinger were examined. These sites were evaluated on the basis of their chemical and physical properties as they pertain to the noninvasive measurement of glucose. Critical features included the effective optical pathlength of aqueous material within the tissue and the percentage of body fat within the optical path. Aqueous optical paths of 5 mm are required to measure clinically relevant concentrations of glucose in the first-overtone region. All of the tested sites met this requirement. The percentage of body fat affects the signal-to-noise ratio of the measurement and must be minimized for reliable glucose sensing. The webbing tissue contains a considerable amount of fat tissue and is clearly the worse measurement site. All other sites possess substantially less fat, with the least amount of fat in tongue tissue. For this reason, the tongue provides spectra with the highest signal-to-noise ratio and is, therefore, the site of choice on the basis of spectral quality.

scholarly journals Maximum Signal Fraction Analysis for Enhancing Signal-to-Noise Ratio of EEG Signals in SSVEP-Based BCIs

IEEE Access ◽  
2019 ◽  
Vol 7 ◽  
pp. 85452-85461 ◽  
Author(s):  
Qingguo Wei ◽  
Shan Zhu ◽  
Yijun Wang ◽  
Xiaorong Gao ◽  
Hai Guo ◽  
...  
Keyword(s):  
Signal To Noise Ratio ◽  
Eeg Signals ◽  
Signal To Noise ◽  
Noise Ratio ◽  
Maximum Signal

Bioapplications and biotechnologies of upconversion nanoparticle-based nanosensors

The Analyst ◽  
2016 ◽  
Vol 141 (12) ◽  
pp. 3601-3620 ◽  
Author(s):  
Chengli Wang ◽  
Xiaomin Li ◽  
Fan Zhang
Keyword(s):  
Optical Properties ◽  
High Resistance ◽  
Near Infrared ◽  
Signal To Noise Ratio ◽  
Upconversion Nanoparticles ◽  
Signal To Noise ◽  
Noise Ratio ◽  
Auto Fluorescence ◽  
New Generation ◽  
Narrow Emission

Upconversion nanoparticles (UCNPs), which can emit ultraviolet/visible (UV/Vis) light under near-infrared (NIR) excitation, are regarded as a new generation of nanoprobes because of their unique optical properties, including a virtually zero auto-fluorescence background for the improved signal-to-noise ratio, narrow emission bandwidths and high resistance to photo-bleaching.

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