Low Frequency and Circuit based Quantum Cascade Lasers

Name: Low Frequency and Circuit based Quantum Cascade Lasers
Brand: Sudwestdeutscher Verlag Fur Hochschulschriften AG
SKU: 9783838128573
Price: 92.83 EUR
Availability: InStock

Автор: Christoph Walther

Език:

Корици: С меки корици

Издател: Sudwestdeutscher Verlag Fur Hochschulschriften AG

Наличност: Налично при издателя, по поръчка

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Quantum cascade lasers are unipolar semiconductor lasers based on intersubband transitions in quantu...

Информация за книгата

Автор

Christoph Walther

Език

Английски език

Корици

Книга - С меки корици

Издадена

2011

страници

244

EAN

9783838128573

ISBN

3838128575

Enbook ID

07012318

Издател

Sudwestdeutscher Verlag Fur Hochschulschriften AG

Теглоt

363

Размери

152 x 229 x 14

Пълно описание

Quantum cascade lasers are unipolar semiconductor lasers based on intersubband transitions in quantum wells. They have shown laser operation from above 100 THz down to the terahertz region and are promising sources for the terahertz region (0.3-10 THz) which is lacking of efficient narrowband radiation sources. A low frequency quantum cascade laser design is developed that faces the emerging challenges when the photon energy approaches the broadening of the energy levels. A record lowest operation frequency of 1.2 THz is demonstrated. A hybrid laser-oscillator for the terahertz is developed in the second part of this work, consisting of an optical gain medium and an electronic resonator. The resonator is an inductor-capacitor resonant circuit. The so called circuit based laser has the property of being a deep sub-wavelength sized microcavity laser. The effective mode volume is among the smallest for electrically pumped lasers. The circuit based resonator in combination with an active region could lead to a class of new devices to generate and manipulate terahertz radiation that exploit cavity quantum electrodynamic effects.

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Low Frequency and Circuit based Quantum Cascade Lasers

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