'Optical absorption' diaporamas de présentation

Introduction to Optoelectronics Optical communication (2)

Introduction to Optoelectronics Optical communication (2). Prof. Katsuaki Sato. Lasers. Spontaneous emission and stimulated emission Application of Lasers Classification of lasers according to the way of pumping Laser diodes What is semiconductor? p/n junction diode

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Utilizing Laser Spectroscopy of Noble Gas Tracers for Mapping Oil and Gas Deposits

Utilizing Laser Spectroscopy of Noble Gas Tracers for Mapping Oil and Gas Deposits. Project ID No.: NPRP30-6-7-35 Name of Lead PI: Hans A. Schuessler Name of Contact PI: Milivoj Belic Texas A&M University (Doha, Qatar and College Station, TX).

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RECHARGING PROCESSES OF ACTIVE IONS AND RADIATION DEFECTS

457 views • 33 slides

ECEE 302: Electronic Devices

28 October 2002. ECEE 302: Electronic Devices. Lecture 4. Effect of Excess Carriers in Semi-Conductors. Outline. Optical Absorption Luminescence Photo-Luminenscence Cathodoluminescence Electroluminescence Carrier Lifetime and Photoconductivity

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Alexander Khalaidovski 1 , Jessica Steinlechner 2 , Roman Schnabel 2

Optical absorption in bulk crystalline silicon as well as in the crystal surfaces. Alexander Khalaidovski 1 , Jessica Steinlechner 2 , Roman Schnabel 2. 1: Institute for Cosmic Ray Research (ICRR) The University of Tokyo http://www.icrr.u-tokyo.ac.jp/. 2: Albert Einstein Institute

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Light detectors

Light detectors. Classification and parameters of detectors Photodiode Phototransistor Photoresistor Thermal detectors 5.1. Thermopiles 5.2. Pyroelectric detectors 5.3. Bolometers. Detectors classification.

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386 views • 26 slides

Double (X-ray) Vision: The Close Binary, Accreting T Tauri System V4046 Sgr

Double (X-ray) Vision: The Close Binary, Accreting T Tauri System V4046 Sgr. Joel Kastner Center for Imaging Science, Rochester Institute of Technology Collaborators: Germano Sacco (RIT), David Huenemoerder (MIT), Thierry Montmerle (Grenoble), and the V4046 Sgr XMM Large Project team;

357 views • 23 slides

Biomedical Photoacoustic Imaging

Biomedical Photoacoustic Imaging. Dene Ringuette ECE1457H Dec. 6, 2011. Photoacoustic Effect. Material emitting sound when exposed light More Generally: Physical Vibrations induced from EM radiation absorption Discovered by Alexander Graham Bell in 1880 Used in gas composition spectroscopy

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Gd-Loaded Liquid Scintillator ( Gd-LS ): Past Problems, Current Solutions, & Future Directions

Gd-Loaded Liquid Scintillator ( Gd-LS ): Past Problems, Current Solutions, & Future Directions. Richard L. (Dick) Hahn. Solar-Neutrino & Nuclear-Chemistry Group * Chemistry Department + , BNL. OHEP Review of Daya Bay Project LBNL, October 16-17, 2006. *with Minfang Yeh, Alex Garnov (RA).

360 views • 18 slides

Necessity of development of (1) in-situ tritium detection technique

9th ITPA meeting on SOL/divertor physics, Garching, May 7-10, 2007. Application of optical techniques for in situ surface analysis of carbon based materials T. Tanabe, Kyushu University. Necessity of development of (1) in-situ tritium detection technique

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Broad-band nano-scale light propagation in plasmonic structures

Broad-band nano-scale light propagation in plasmonic structures. Shanhui Fan, G. Veronis Department of Electrical Engineering and Ginzton Laboratory Stanford University. In collaborations with Professors Mark Brongersma and Peter Peumans Supported by the Stanford-GCEP, and NSF-NIRT.

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Thermal profile of high power laser diode arrays and implications in line-narrowing using external cavities

605 views • 16 slides

Excess carriers in semiconductors

Excess carriers in semiconductors. Optical absorption Luminescense Carrier lifetime and photo-conductivity Diffusion of carriers. Optical absorption. Photons with hv >E g will excite EHP and the excess energy ( hv -E g ) will be absorbed as heat. EHPs increase conductivity.

993 views • 14 slides

Plasmonic Effects in Organic Solar Cells

PIERS 2012 in Kuala Lumpur, Malaysia. Plasmonic Effects in Organic Solar Cells. Wei E.I. Sha, Wallace C.H. Choy, Weng Cho Chew Department of Electrical and Electronic Engineering The University of Hong Kong Speaker: Wei E.I Sha Email: wsha@eee.hku.hk.

583 views • 13 slides

Synthesis and Characterization of a Pb 1-x Sr x CrO 4 Solid Solution

Synthesis and Characterization of a Pb 1-x Sr x CrO 4 Solid Solution. Ohio State University CHEM 123 REEL Poster Session. Matthew W. Stoltzfus Thad Matta Jim Tressel Bob Todd. 22 May 2007. Pb(SbO 3 ) 2. CdS. PbCrO 4. Goals.

345 views • 12 slides

Plumbing and Gas, for better optical cryostats

Plumbing and Gas, for better optical cryostats. Warren Johnson LSU. Motivation for cryogenic interferometers. Higher mechanical Q (especially for metals) Lower Temperature (noise) Creaking and creeping frozen out? Dimensional stability.

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KAGRA Domestic Meeting Mirror

KAGRA Domestic Meeting Mirror. 17 April, 2013 Norikatsu Mio Eiichi Hirose. Current status (Fabrication). The first-stage contract for polish and coating for BS has been finished. The first-stage contract for polishing RMs and SRMs has been finished.

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Optical Characterization methods

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Glass

LiF/Al. ZnO. ~ 20% increase!. P3HT:PCBM. Planar. Photonic. PEDOT:PSS. ITO. Glass. Control of Fundamental Length Scales in Polymer Solar Cells Rene Lopez UNC chapel Hill.

181 views • 1 slides