Abstract
Quantum well lasers are available in a large wavelength range, extending from the near UV to the near infrared. Basic materials are: GaN for UV and blue lasers; GaAs for red lasers; InP for near infrared lasers; GaN, GaAs or ZnSe for green lasers. We will discuss the design of different lasers.
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24.1
GaN quantum well. The effective mass of (m\(^* \sim \) 0.2 m\(_0\)) of conduction electrons in GaN is about three times the effective mass of conduction electrons in GaAs.
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(a)
Compare the density of states of electrons in a GaN quantum well with the density of states of electrons in a GaAs quantum well.
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(b)
Compare the condition of gain mediated by a GaN quantum well with the condition of gain mediated by a GaAs quantum.
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Renk, K.F. (2017). Quantum Well Lasers from the UV to the Infrared. In: Basics of Laser Physics. Graduate Texts in Physics. Springer, Cham. https://doi.org/10.1007/978-3-319-50651-7_24
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DOI: https://doi.org/10.1007/978-3-319-50651-7_24
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Publisher Name: Springer, Cham
Print ISBN: 978-3-319-50650-0
Online ISBN: 978-3-319-50651-7
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