English
Related papers

Related papers: Optical power detector with broad spectral coverag…

200 papers

We describe the development, operation, and application of the 4D Camera -- a 576 by 576 pixel active pixel sensor for scanning/transmission electron microscopy which operates at 87,000 Hz. The detector generates data at approximately 480…

The delay of photodetectors can be affected by intensity, reverse bias, and temperature through different effects. An optical pilot tone superimposed on the detectors allows the independent measurement of such phase errors in the complete…

Instrumentation and Detectors · Physics 2023-06-29 Alexander Schultze , Dennis Weise , Alexander Sell , Claus Braxmaier

Optical limiters are nonlinear devices that feature decreasing transmittance with increasing incident optical intensity, and thus can protect sensitive components from high-intensity illumination. The ideal optical limiter reflects rather…

Black phosphorus has attracted interest as a material for use in optoelectronic devices due to many favorable properties such as a high carrier mobility, field-effect, and a direct bandgap that can range from 0.3 eV in its bulk crystalline…

We create squeezed light by exploiting the quantum nature of the mechanical interaction between laser light and a membrane mechanical resonator embedded in an optical cavity. The radiation pressure shot noise (fluctuating optical force from…

Quantum Physics · Physics 2013-10-23 T. P. Purdy , P. -L. Yu , R. W. Peterson , N. S. Kampel , C. A. Regal

We report on the use of an optically-trapped microsphere as an acoustic transducer. A model for the hydrodynamic coupling between the microsphere and the surrounding acoustic fluid flow is combined with thermo-mechanical calibration of the…

Applied Physics · Physics 2023-10-03 Logan E. Hillberry , Mark G. Raizen

The sensitivity of the displacement transducer pumped with a train of high-intensity laser pulses is estimated. Due to the multicomponent character of the pump a consideration of transformations of the signal and the noises between optical…

Optics · Physics 2007-05-23 Victor V. Kulagin

Two-dimensional (2D) layered metal dichalcogenides constitute a promising class of materials for photodetector applications due to their excellent optoelectronic properties. The most common photodetectors, which work on the principle of…

I propose a superoscillation measurement method for subdiffraction incoherent optical sources, with potential applications in astronomy, remote sensing, fluorescence microscopy, and spectroscopy. The proposal, based on coherent optical…

Quantum Physics · Physics 2022-10-10 Mankei Tsang

We describe a simple technique to both amplify incident photons and compress their angular x area phase space. These Optical Compressor Amplifier Tubes (OCA Tube) use techniques analogous to image intensifiers, using vacuum photocathodes to…

Instrumentation and Detectors · Physics 2014-08-01 Alex Carrio , Joseph Dowling , Kevin Greener , Sean McGuiness , Victor Podrasky , John Sullivan , David R. Winn , Burak Bilki , Yasar Onel

We use the one-dimensional object-oriented particle-in-cell Monte Carlo collision code oopd1 to explore the properties and the origins of both the electric field and electron power absorption within the plasma bulk for a capacitively…

Plasma Physics · Physics 2021-02-08 A. Proto , J. T. Gudmundsson

The monitoring of accelerations is essential for a variety of applications ranging from inertial navigation to consumer electronics. The basic operation principle of an accelerometer is to measure the displacement of a flexibly mounted test…

Photodetectors are key optoelectronic building blocks performing the essential optical-to-electrical signal conversion, and unlike solar cells, operate at a specific wavelength and at high signal or sensory speeds. Towards achieving high…

Applied Physics · Physics 2020-07-01 Volker J. Sorger , Rishi Maiti

The polaron optical conductivity is derived within the strong-coupling expansion, which is asymptotically exact in the strong-coupling limit. The polaron optical conductivity band is provided by the multiphonon optical transitions. The…

Strongly Correlated Electrons · Physics 2014-02-26 S. N. Klimin , J. T. Devreese

We report operating temperatures and heating coefficients measured in a multi-layer black phosphorus device as a function of injected electrical power. By combining micro-Raman spectroscopy and electrical transport measurements, we have…

Materials Science · Physics 2015-12-15 Michael Engel , Mathias Steiner , Shu-Jen Han , Phaedon Avouris

Opto-mechanical oscillators that generate coherent acoustic waves are drawing much interest, in both fundamental research and applications. Narrowband oscillations can be obtained through the introduction of feedback to the acoustic wave.…

Optics · Physics 2018-11-16 H. Hagai Diamandi , Yosef London , Gil Bashan , Arik Bergman , Avi Zadok

We present a comprehensive theory and an easy to follow method for the design and construction of a wideband homodyne detector for time-domain quantum measurements. We show how one can evaluate the performance of a detector in a specific…

Instrumentation and Detectors · Physics 2015-06-03 Ranjeet Kumar , Erick Barrios , Andrew MacRae , E. Cairns , E. H. Huntington , A. I. Lvovsky

Optical forces have been fruitfully applied in a broad variety of areas that not only span the traditional scientific fields such as physics, chemistry, and biology, but also in more applied fields. It is customary and useful to split the…

Optics · Physics 2015-05-28 Junjie Du , Chi-Hong Yuen , Kun Ding , Guiqiang Du , Zhifang Lin , C. T. Chan , Jack Ng

Diverse applications in photonics and microwave engineering require a means of measurement of the instantaneous frequency of a signal. A photonic implementation typically applies an interferometer equipped with three or more output ports to…

Detection of low-intensity light relies on the conversion of photons to photoelectrons, which are then multiplied and detected as an electrical signal. To measure the actual intensity of the light, one must know the factor by which the…

‹ Prev 1 4 5 6 7 8 10 Next ›