نتایج جستجو برای: semiconductor lasers

تعداد نتایج: 78942  

2010
M. J. Strain G. Mezősi J. Javaloyes M. Sorel A. Pérez-Serrano A. Scirè S. Balle J. Danckaert

M. J. Strain, G. Mezősi, J. Javaloyes, M. Sorel, A. Pérez-Serrano, A. Scirè, S. Balle, J. Danckaert, and G. Verschaffelt Department of E&EE, University of Glasgow, Glasgow G12 8LT, United Kingdom IFISC, UIB-CSIC, Campus UIB, E-07122 Palma de Mallorca, Spain IMEDEA, C/Miquel Marqués, 21; E-07190 Esporles, Spain Department of Applied Physics and Photonics, Vrije Universiteit Brussel, Pleinlaan 2,...

2014
Ursula Keller

Novel ultrafast semiconductor lasers Ursula Keller ETH Zürich SESAM modelocked VECSELs and MIXSELs are attractive semiconductor laser sources that deliver ultrashort laser pulses with picosecond and femtosecond pulse durations in combination with watt-level average output power levels in the gigahertz repetition rate range. The excellent beam quality and low-noise performance makes them highly ...

Journal: :Physical review 2021

Semiconductor microcavities can exhibit various macroscopic quantum phenomena, including Bose-Einstein condensation of polaritons, Bardeen-Cooper-Schrieffer (BCS) states and photon lasing (lasing with negligible Coulombic exciton effects). An important aspect possible experimental identification these is a gap in the excitation spectrum (the BCS case polaritonic state). Similar to gap, light-in...

2017

This review focuses on theoretical foundations, experimental implementation and an overview of experimental results of the thermoreflectance spectroscopy as a powerful technique for temperature monitoring and analysis of thermal processes in semiconductor lasers. This is an optical, non-contact, high spatial resolution technique providing high temperature resolution and mapping capabilities. Th...

2017

This review focuses on theoretical foundations, experimental implementation and an overview of experimental results of the thermoreflectance spectroscopy as a powerful technique for temperature monitoring and analysis of thermal processes in semiconductor lasers. This is an optical, non-contact, high spatial resolution technique providing high temperature resolution and mapping capabilities. Th...

2002
Geoffrey A. Landis

Approaches are discussed for a direct solar-pumped semiconductor laser. Efficiencies of 35% should be achievable, an order of magnitude better than the efficiency achieved by other solar-pumped lasers. The output wavelength of a semiconductor laser will be well matched to the optimum conversion efficiency of a solar cell of the same material. Solar pumped semiconductor lasers are thus an excell...

2017

This review focuses on theoretical foundations, experimental implementation and an overview of experimental results of the thermoreflectance spectroscopy as a powerful technique for temperature monitoring and analysis of thermal processes in semiconductor lasers. This is an optical, non-contact, high spatial resolution technique providing high temperature resolution and mapping capabilities. Th...

Journal: :Optics express 2010
Christoph Vannahme Sönke Klinkhammer Mads Brøkner Christiansen Alexander Kolew Anders Kristensen Uli Lemmer Timo Mappes

Organic semiconductor lasers are of particular interest as tunable visible laser light sources. For bringing those to market encapsulation is needed to ensure practicable lifetimes. Additionally, fabrication technologies suitable for mass production must be used. We introduce all-polymer chips comprising encapsulated distributed feedback organic semiconductor lasers. Several chips are fabricate...

2004
Cory J. Hill

The development of mid-IR semiconductor diode lasers based on type-I1 interband cascade structures is presented. How these diode lasers can be developed to meet the requirements in chemical sensing applications is discussed.

Journal: :Nano letters 2013
Xinfeng Liu Qing Zhang Qihua Xiong Tze Chien Sum

Understanding the optical gain and mode-selection mechanisms in semiconductor nanowire (NW) lasers is key to the development of high-performance nanoscale oscillators, amplified semiconductor/plasmon lasers and single photon emitters, and so forth. Modification of semiconductor band structure/bandgap through electric field modulation, elemental doping, or alloying semiconductors has so far gain...

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