Guided-wave near-infrared detector in polycrystalline germanium on silicon

2005 ◽  
Vol 87 (20) ◽  
pp. 203507 ◽  
Author(s):  
Lorenzo Colace ◽  
Gianlorenzo Masini ◽  
Gaetano Assanto
Keyword(s):  
Near Infrared ◽  
Infrared Detector ◽  
Guided Wave

Monolithically integrated near-infrared and mid-infrared detector array for spectral imaging

2007 ◽  
Vol 50 (2-3) ◽  
pp. 211-216 ◽  
Author(s):  
S.V. Bandara ◽  
S.D. Gunapala ◽  
D.Z. Ting ◽  
J.K. Liu ◽  
C.J. Hill ◽  
...  
Keyword(s):  
Near Infrared ◽  
Infrared Detector ◽  
Spectral Imaging ◽  
Detector Array ◽  
Mid Infrared ◽  
Monolithically Integrated ◽  
Infrared Detector Array

scholarly journals Highly Efficient Near-Infrared Detector Based on Optically Resonant Dielectric Nanodisks

Nanomaterials ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 428
Author(s):  
Reza Masoudian Saadabad ◽  
Christian Pauly ◽  
Norbert Herschbach ◽  
Dragomir N. Neshev ◽  
Haroldo T. Hattori ◽  
...  
Keyword(s):  
Quantum Efficiency ◽  
High Speed ◽  
Near Infrared ◽  
Infrared Detector ◽  
High Quantum Efficiency ◽  
Fast Detection ◽  
High Quantum ◽  
Resonant Modes ◽  
Infrared Wavelengths ◽  
Dielectric Metasurface

Fast detection of near-infrared (NIR) photons with high responsivity remains a challenge for photodetectors. Germanium (Ge) photodetectors are widely used for near-infrared wavelengths but suffer from a trade-off between the speed of photodetection and quantum efficiency (or responsivity). To realize a high-speed detector with high quantum efficiency, a small-sized photodetector efficiently absorbing light is required. In this paper, we suggest a realization of a dielectric metasurface made of an array of subwavelength germanium PIN photodetectors. Due to the subwavelength size of each pixel, a high-speed photodetector with a bandwidth of 65 GHz has been achieved. At the same time, high quantum efficiency for near-infrared illumination can be obtained by the engineering of optical resonant modes to localize optical energy inside the intrinsic Ge disks. Furthermore, small junction capacitance and the possibility of zero/low bias operation have been shown. Our results show that all-dielectric metasurfaces can improve the performance of photodetectors.

scholarly journals Improved Reference Sampling and Subtraction: A Technique for Reducing the Read Noise of Near-infrared Detector Systems

2017 ◽  
Vol 129 (980) ◽  
pp. 105003 ◽  
Author(s):  
Bernard J. Rauscher ◽  
Richard G. Arendt ◽  
D. J. Fixsen ◽  
Matthew A. Greenhouse ◽  
Matthew Lander ◽  
...  
Keyword(s):  
Near Infrared ◽  
Infrared Detector

Waveguide-integrated near-infrared detector with self-assembled metal silicide nanoparticles embedded in a silicon p-n junction

2012 ◽  
Vol 100 (6) ◽  
pp. 061109 ◽  
Author(s):  
Shiyang Zhu ◽  
H. S. Chu ◽  
G. Q. Lo ◽  
P. Bai ◽  
D. L. Kwong
Keyword(s):  
Near Infrared ◽  
Infrared Detector ◽  
Metal Silicide ◽  
Self Assembled

Monolithically integrated near-infrared and mid-infrared detector array

2005 ◽  
Author(s):  
S. V. Bandara ◽  
S. D. Gunapala ◽  
D Z. Ting ◽  
J. K. Liu ◽  
C. J. Hill ◽  
...  
Keyword(s):  
Near Infrared ◽  
Infrared Detector ◽  
Detector Array ◽  
Mid Infrared ◽  
Monolithically Integrated ◽  
Infrared Detector Array

scholarly journals Infrared detector activities at NASA Langley Research Center

2008 ◽  
Vol 1076 ◽  
Author(s):  
M. Nurul Abedin ◽  
Tamer F Refaat ◽  
Oleg V Sulima ◽  
Farzin Amzajerdian
Keyword(s):  
Remote Sensing ◽  
Near Infrared ◽  
Infrared Detector ◽  
Avalanche Photodiode ◽  
Low Noise ◽  
Focal Plane Arrays ◽  
Research Center ◽  
Single Element ◽  
Sensing Applications ◽  
Langley Research Center

ABSTRACTInfrared detector development and characterization at NASA Langley Research Center will be reviewed. These detectors were intended for ground, airborne, and space borne remote sensing applications. Discussion will be focused on recently developed single-element infrared detector and future development of near-infrared focal plane arrays (FPA). The FPA will be applied to next generation space-based instruments. These activities are based on phototransistor and avalanche photodiode technologies, which offer high internal gain and relatively low noise-equivalent-power. These novel devices will improve the sensitivity of active remote sensing instruments while eliminating the need for a high power laser transmitter.

Optimization and performance of the Robert Stobie Spectrograph Near-InfraRed detector system

2018 ◽  
Vol 4 (01) ◽  
pp. 1
Author(s):  
Gregory Mosby ◽  
Briana Indahl ◽  
Nathan Eggen ◽  
Marsha Wolf ◽  
Eric Hooper ◽  
...  
Keyword(s):  
Near Infrared ◽  
Infrared Detector ◽  
Detector System ◽  
And Performance ◽  
Optimization And Performance

Random telegraph signal (RTS) noise and other anomalies in the near-infrared detector systems for the Euclid mission

2016 ◽  
Author(s):  
Ralf Kohley ◽  
Rémi Barbier ◽  
Bogna Kubik ◽  
Sylvain Ferriol ◽  
Jean-Claude Clemens ◽  
...  
Keyword(s):  
Near Infrared ◽  
Infrared Detector ◽  
Random Telegraph Signal ◽  
Rts Noise

Remote Sensing Fiber Optic Probe NIR Spectroscopy Coupled with Chemometric Data Treatment

1987 ◽  
Vol 41 (5) ◽  
pp. 786-790 ◽  
Author(s):  
L. G. Weyer ◽  
K. J. Becker ◽  
H. B. Leach
Keyword(s):  
Remote Sensing ◽  
Near Infrared ◽  
Fiber Optic ◽  
Fatty Acid Derivative ◽  
Guided Wave ◽  
Composition Analysis ◽  
Good Prediction ◽  
Fiber Optic Probe ◽  
Data Treatment ◽  
Optic Probe

A near-infrared fiber optic probe remote sensing spectroscopic system has been developed for online multicomponent composition analysis. The Guided Wave Model 200 UV-VIS-NIR spectrophotometer has been evaluated as the base of this system. Multiple linear regression (MLR) software has been combined with data transfer, graphics, and online monitoring programs. The system has been evaluated in plant trials to monitor the composition of mixed alcohol purification streams, mixed solvent distillate, and a fatty acid derivative. The combined use of derivative spectroscopy and MLR data treatment provided good prediction equations for the real-time (20 s) monitoring of the concentrations of several components in moving streams.

scholarly journals Four GRB supernovae at redshifts between 0.4 and 0.8

2019 ◽  
Vol 622 ◽  
pp. A138 ◽  
Author(s):  
S. Klose ◽  
S. Schmidl ◽  
D. A. Kann ◽  
A. Nicuesa Guelbenzu ◽  
S. Schulze ◽  
...  
Keyword(s):  
Near Infrared ◽  
Gamma Ray ◽  
Infrared Detector ◽  
Black Body ◽  
Light Curves ◽  
Expansion Velocity ◽  
Host Galaxies ◽  
Very Large Telescope ◽  
Body Component ◽  
Optical Transient

Twenty years ago, GRB 980425/SN 1998bw revealed that long gamma-ray bursts (GRBs) are physically associated with broad-lined type-Ic supernovae (SNe). Since then more than 1000 long GRBs have been localized to high angular precision, but only in ∼50 cases has the underlying SN component been identified. Using the Gamma-Ray Burst Optical Near-Infrared Detector (GROND) multi-channel imager at ESO/La Silla, during the last ten years we have devoted a substantial amount of observing time to reveal and study SN components in long-GRB afterglows. Here we report on four more GRB SNe (associated with GRBs 071112C, 111228A, 120714B, and 130831A) which were discovered and/or followed-up with GROND and whose redshifts lie between z = 0.4 and 0.8. We study their afterglow light curves, follow the associated SN bumps over several weeks, and characterize their host galaxies. Using SN 1998bw as a template, the derived SN explosion parameters are fully consistent with the corresponding properties of the currently known GRB-SN ensemble, with no evidence for an evolution of their properties as a function of redshift. In two cases (GRB 120714B/SN 2012eb at z = 0.398 and GRB 130831A/SN 2013fu at z = 0.479) additional Very Large Telescope (VLT) spectroscopy of the associated SNe revealed a photospheric expansion velocity at maximum light of about 40 000 and 20 000 km s−1, respectively. For GRB 120714B, which was an intermediate-luminosity burst, we find additional evidence for a black-body component in the light of the optical transient at early times, similar to what has been detected in some GRB SNe at lower redshifts.

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