scholarly journals Optical Observations on Milli-, Micro-, and Nanosecond Timescales

1995 ◽  
Vol 151 ◽  
pp. 129-130
Author(s):  
D. Dravins ◽  
L. Lindegren ◽  
E. Mezey
Keyword(s):  
Fine Structure ◽  
High Speed ◽  
Avalanche Photodiodes ◽  
Photon Emission ◽  
Photon Counting ◽  
Optical Observations ◽  
Accretion Flows ◽  
La Palma

AbstractInstrumentation and observing methods are developed for optical high-speed astrophysics, aiming at exploring milli-, micro-, and nanosecond variability. Such rapid fluctuations can be expected from instabilities in accretion flows, and in the fine structure of photon emission. For the optical, we have constructed a dedicated instrument, whose first version was tested on La Palma to study atmospheric scintillation on very short timescales. A second version is now under development, using photon-counting avalanche photodiodes as detectors.

scholarly journals Ultraviolet to Near Infrared Observations of BF Cyg

1988 ◽  
Vol 103 ◽  
pp. 301-302
Author(s):  
A. Cassatella ◽  
R. Gonzalez-Riestra ◽  
T. Fernandez-Castro ◽  
J. Fuensalida ◽  
A. Gimenez
Keyword(s):  
Canary Islands ◽  
Near Infrared ◽  
Single Channel ◽  
Photon Counting ◽  
Optical Observations ◽  
Counting System ◽  
Infrared Observations ◽  
Isaac Newton ◽  
Preliminary Results ◽  
La Palma

In this paper we provide preliminary results of multifrequency observations of BF Cyg carried out in July 1986. The ultraviolet spectra were obtained on July 26, 1986 using the IUE satellite. The optical observations were made at the Observatorio del Roque de los Muchachos (La Palma, Canary Islands) in July 1986 during the night 13/14 using the Isaac Newton 2.5m telescope with the Intermediate Dispersion Spectrograph (IDS, 500 mm camera) and the Image Photon Counting System (IPCS). The infrared observations were made during the night 13/14 of July, 1986, at the Observatorio del Teide (Tenerife, Canary Islands) using the Carlos Sanchez 1.5m telescope and an infrared single-channel photometer with an InSb detector.

Prospects of Time-Resolved Photon Emission as a Debug Tool

2002 ◽  
Author(s):  
Jim Vickers ◽  
Nader Pakdaman ◽  
Steven Kasapi
Keyword(s):  
Photon Emission ◽  
Photon Counting ◽  
Signal Propagation ◽  
General Function ◽  
Hot Electron ◽  
Detector Performance ◽  
Time Resolved ◽  
Switching Event ◽  
Emission System

Abstract Dynamic hot-electron emission using time-resolved photon counting can address the long-term failure analysis and debug requirements of the semiconductor industry's advanced devices. This article identifies the detector performance parameters and components that are required to scale and keep pace with the industry's requirements. It addresses the scalability of dynamic emission with the semiconductor advanced device roadmap. It is important to understand the limitations to determining that a switching event has occurred. The article explains the criteria for event detection, which is suitable for tracking signal propagation and looking for logic or other faults in which timing is not critical. It discusses conditions for event timing, whose goal is to determine accurately when a switching event has occurred, usually for speed path analysis. One of the uses of a dynamic emission system is to identify faults by studying the emission as a general function of time.

Revealing of the fine structure of the (3Σg-) - (1Δg) vibronic transition band in the α-oxygen spectrum by the high-speed laser spectrometry method

1974 ◽  
Vol 22 (2) ◽  
pp. K121-K124 ◽  
Author(s):  
S. P. Anokhov ◽  
V. I. Kravchenko ◽  
A. F. Prikhotko ◽  
M. S. Soskin ◽  
A. S. Ulitskii ◽  
...  
Keyword(s):  
Fine Structure ◽  
High Speed ◽  
Vibronic Transition ◽  
Transition Band ◽  
Spectrometry Method ◽  
Laser Spectrometry

Detector commissioning and development for PETRA-III

2010 ◽  
Vol 1 (SRMS-7) ◽  
Author(s):  
David Pennicard ◽  
Heinz Graafsma ◽  
Michael Lohmann
Keyword(s):  
High Speed ◽  
Materials Science ◽  
Dynamic Range ◽  
Photon Counting ◽  
High Energy ◽  
X Rays ◽  
Silicon Detectors ◽  
Time Resolved ◽  
Wide Range ◽  
Synchrotron Light

The new synchrotron light source PETRA-III produced its first beam last year. The extremely high brilliance of PETRA-III and the large energy range of many of its beamlines make it useful for a wide range of experiments, particularly in materials science. The detectors at PETRA-III will need to meet several requirements, such as operation across a wide dynamic range, high-speed readout and good quantum efficiency even at high photon energies. PETRA-III beamlines with lower photon energies will typically be equipped with photon-counting silicon detectors for two-dimensional detection and silicon drift detectors for spectroscopy and higher-energy beamlines will use scintillators coupled to cameras or photomultiplier tubes. Longer-term developments include ‘high-Z’ semiconductors for detecting high-energy X-rays, photon-counting readout chips with smaller pixels and higher frame rates and pixellated avalanche photodiodes for time-resolved experiments.

High-speed flip-chip InP/InGaAs avalanche photodiodes with ultralow capacitance and large gain-bandwidth products

1991 ◽  
Vol 3 (12) ◽  
pp. 1115-1116 ◽  
Author(s):  
Y. Kito ◽  
H. Kuwatsuka ◽  
T. Kumai ◽  
M. Makiuchi ◽  
T. Uchida ◽  
...  
Keyword(s):  
High Speed ◽  
Flip Chip ◽  
Avalanche Photodiodes ◽  
Gain Bandwidth ◽  
Large Gain

Two-dimensional photon counting imaging and spatiotemporal characterization of ultraweak photon emission from a rat’s brain in vivo

1999 ◽  
Vol 93 (2) ◽  
pp. 163-168 ◽  
Author(s):  
Masaki Kobayashi ◽  
Motohiro Takeda ◽  
Ken-Ichi Ito ◽  
Hiroshi Kato ◽  
Humio Inaba
Keyword(s):  
Photon Emission ◽  
Photon Counting ◽  
Two Dimensional

Ultraviolet photon counting with GaN avalanche photodiodes

2000 ◽  
Vol 76 (26) ◽  
pp. 3938-3940 ◽  
Author(s):  
K. A. McIntosh ◽  
R. J. Molnar ◽  
L. J. Mahoney ◽  
K. M. Molvar ◽  
N. Efremow ◽  
...  
Keyword(s):  
Avalanche Photodiodes ◽  
Photon Counting
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