{"product_id":"terahertz-quantum-cascade-lasers-giacomo-scalari-9783639276602","title":"Terahertz quantum cascade lasers","description":"The Terahertz (THz) region of the electromagnetic spectrum is usually defined as ranging from 1 THz (300 micrometers in wavelength) to 10 THz (30 micrometers in wavelength). In this dissertation we present the complete realization of semiconductor-heterostructure lasers emitting in the THz and employing the quantum cascade technology. The quantum cascade laser is a coherent light source based on optical transitions between discrete electronic states arising from size confinement in semiconductor quantum wells. The quantum mechanical design of the heterostructure-based gain medium is discussed in detail, together with the different optical resonators employed, the fabrication process and the measurement techniques. Different active region designs are presented and discussed together with extensive experimental data. The effects of a further confinement of the electrons induced by the application of intense magnetic fields perpendicular to the plane of the layers are presented. An in-depth experimental study on different active regions demonstrates the radical change in the physics of these lasing systems introduced by the magnetic confinement.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eAuthor:\u003c\/b\u003e Giacomo Scalari\u003cbr\u003e\u003cb\u003eISBN-10:\u003c\/b\u003e 3639276604\u003cbr\u003e\u003cb\u003eISBN-13:\u003c\/b\u003e 9783639276602\u003cbr\u003e\u003cb\u003ePublisher:\u003c\/b\u003e VDM Verlag\u003cbr\u003e\u003cb\u003eLanguage:\u003c\/b\u003e English\u003cbr\u003e\u003cb\u003ePublished:\u003c\/b\u003e 09\/23\/2010\u003cbr\u003e\u003cb\u003ePages:\u003c\/b\u003e 248\u003cbr\u003e\u003cb\u003eFormat:\u003c\/b\u003e Paperback\u003cbr\u003e\u003cb\u003eWeight:\u003c\/b\u003e 0.81lbs\u003cbr\u003e\u003cb\u003eSize:\u003c\/b\u003e 9.00h x 6.00w x 0.56d","brand":"Giacomo Scalari","offers":[{"title":"Paperback","offer_id":47305529721087,"sku":"9783639276602","price":85.32,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0662\/2982\/9887\/files\/img_7e4cd704-ed5a-41ab-bd4d-98b99639bafd.jpg?v=1758831133","url":"https:\/\/www.whiterainbookhouse.com\/products\/terahertz-quantum-cascade-lasers-giacomo-scalari-9783639276602","provider":"WR Book House","version":"1.0","type":"link"}