Results 51 to 60 of about 2,791 (216)

Infrared Avalanche Photodiode Detectors

, 2017
This study presents on the design, fabrication and characteristics of HgCdTe mid-wave infrared avalanche photodiode (MWIR APD). The gain of 800 at - 8 V bias is measured in n+-ν-p+ detector array with pitch size of 30 μm.
Singh, Anand, Pal, Ravinder, Ravinder Pal, Anand Singh   +3 more
core   +1 more source

InGaAs APD thermometry [PDF]

, 2019
The infrared detector is the most important component within any radiation thermometry based system, with its choice determining the wavelength, response time and, ultimately, the temperature measurement capabilities of the instrument.
Hobbs, M., Willmott, J.R.
core   +1 more source

Evaluating Variability in Extracellular Vesicle Characterization Across Measurement Techniques

Journal of Extracellular Biology, Volume 5, Issue 6, June 2026.
ABSTRACT Reliable, reproducible, and standardized characterization of extracellular vesicles (EVs) remains a central challenge due to methodological variability across analytical platforms and intrinsic EV heterogeneity within and across biofluids. Here, we evaluated EVs isolated using ultracentrifugation from dedifferentiated liposarcoma‐conditioned ...
Premanshu K. Singh, Ali F. Usmani, Debmalya Halder, Jenna Miller, Tharune Kanagasabai, Patricia Sarchet, Kevin Weller, George J. Klarmann, Raphael E. Pollock, Federica Calore, Shaurya Prakash   +10 more
wiley   +1 more source

An Improved Design for Solar-Blind AlGaN Avalanche Photodiodes

IEEE Photonics Journal, 2017
To enhance the impact ionization coefficient of holes, we proposed an improved solar-blind AlGaN avalanche photodiode (APD) structure by using a low-Al-composition AlGaN multiplication layer and a filter based on periodic photonic crystal together with a
Qing Cai, Mei Ge, Junjun Xue, Liqun Hu, Dunjun Chen, Hai Lu, Rong Zhang, Youdou Zheng   +7 more
doaj   +1 more source

Optical Phased Array-Based Laser Beam Array Subdivide Pixel Method for Improving Three-Dimensional Imaging Resolution

Photonics, 2023
The small number of pixels in the current linear mode avalanche photodiode (LM-APD) array limits its three-dimensional (3D) imaging resolution. We use an optical phased array-based beam array subdivided pixel method to improve the 3D imaging resolution ...
Shuai Wang, Gang Yuan, Kun-Peng Wang, Guang-De Sun, Lei Liu, Ling Li, Bing Zhang, Lin Quan   +7 more
doaj   +1 more source

Near‐Infrared Emitting Lanthanide Catecholate Giant Single Crystals – Morphology Control and Photon Down‐Conversion

Advanced Functional Materials, Volume 36, Issue 43, 29 May 2026.
Controlled syntheses of lanthanide coordination polymers based on the dihydroxybenzoquinone (DHBQ) organic linker afforded large single crystals of Ln‐DHBQ CPs (Ln = Yb, Nd). A novel structural variant of Yb‐DHBQ is identified by means of single crystal diffraction analysis.
Marina I. Schönherr, Alexander Biewald, Andre Mähringer, Thaddäus J. Koller, Peter Mayer, Markus Döblinger, Achim Hartschuh, Dana D. Medina   +7 more
wiley   +1 more source

Ultra-Sensitive PIN and Avalanche Photodiode Receivers

, 2023
This book focuses on ultra-sensitive PIN and avalanche photodiode receiver (USPAR) ICs for data communication. After more than 20 years of exploitation of the pin-photodiode CMOS technology leading to efficient APD and SPAD receivers and sensors, this ...
Zimmermann, Horst
core   +1 more source

Characterization of avalanche photodiodes (APDs) for the CUbesat Solar Polarimeter (CUSP) mission

Space Telescopes and Instrumentation 2024: Ultraviolet to Gamma Ray
Proceeding of SPIE Conference "Astronomical Telescopes+ Instrumentation", Yokohama (Japan), 16-21 June ...
Cologgi, Fabrizio, Alimenti, Andrea, Fabiani, Sergio, Torokhtii, Kostiantyn, Silva, Enrico, Del Monte, Ettore, Baffo, Ilaria, Bonomo, Sergio, Brienza, Daniele, Campana, Riccardo, Centrone, Mauro, Contini, Gessica, Costa, Enrico, Cucinella, Giovanni, Curatolo, Andrea, De Angelis, Nicolas, De Cesare, Giovanni, Del Re, Andrera, Di Cosimo, Sergio, Di Filippo, Simone, Di Marco, Alessandro, Di Persio, Giuseppe, Donnarumma, Immacolata, Fanelli, Pierluigi, Leonetti, Paolo, Locarini, Alfredo, Loffredo, Pasqualino, Lombardi, Giovanni, Minervini, Gabriele, Modenini, Dario, Muleri, Fabio, Natalucci, Siilvia, Negri, Andrea, Perelli, Massimo, Rossi, Monia, Rubini, Alda, Scalise, Emanuele, Soffitta, Paolo, Terracciano, Andrea, Tortora, Paolo, Zaccagnino, Emanuele, Zambardi, Alessandro   +41 more
openaire   +2 more sources

Uncovering the Origin of Efficiency Roll‐Off in TADF OLEDs

Advanced Functional Materials, Volume 36, Issue 42, 26 May 2026.
OLEDs based on thermally activated delayed fluorescent (TADF) materials often suffer from a severe drop in efficiency at high brightness levels. This work presents a technique to uncover the source of this efficiency drop, and quantifies the exciton‐exciton and exciton‐polaron annihilation processes responsible for efficiency losses in our TADF OLEDs ...
Liam G. King, Kou Yoshida, Arvydas Ruseckas, Ifor D. W. Samuel   +3 more
wiley   +1 more source

Al _0.4Ga _0.6N/Al _0.15Ga _0.85N Separate Absorption and Multiplication Solar-Blind Avalanche Photodiodes With a One-Dimensional Photonic Crystal Filter

IEEE Photonics Journal, 2016
An Al 0.15Ga 0.85N/Al 0.4Ga 0.6N separate absorption and multiplication avalanche photodiode (APD) integrated with the 1-D photonic crystal (PC) filter with a three-period antireflection coating between the air and periodic PC units on the back of the ...
Kexiu Dong, Dunjun Chen, Biaobing Jin, Xishun Jiang, Jianping Shi   +4 more
doaj   +1 more source