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Due to the growing awareness that insects' diversity and populations are in decline, there is an increased need for monitoring insects. Entomological lidars and photonic sensors can monitor and remotely identify flying insects based on their backscattered signal in terms of oscillations-, polarization-, and spectral content. The backscattered light from insects is predominantly oscillatory and der
Forskningen vid avdelningen för synkrotronljusfysik är inriktad mot experimentella studier av elektroniska och strukturella egenskaper hos ytor och gränsskikt. Vi strävar efter en fundamental förståelse på atomär nivå av de fysikaliska processer som bestämmer sambandet mellan atomernas geometriska position och de elektroniska egenskaperna hos mikro-, nano- och kvantstrukturer samt mesoskopiska sys
Centre for Languages and Literature Education Research Our subjects Previous Next Time to take an exam? Don’t forget to register for written exams. Everything you need to know about examinations and exams can be found here. Read more Bachelor's programmes Our Bachelor's programmes cater to students with interests in languages, texts and area studies. Read more Study opportunities for int
https://www.sol.lu.se/en/ - 2026-07-16
We investigate the phase transitions in InAs/GaSb quantum wells sandwiched between two wide-gap AlSb barrier layers under an external electric field perpendicular to interfaces. The Schrodinger and the Poisson equations are solved self-consistently to derive the subband dispersions, the potential profile, the electron charge distribution in the InAs layer, and the hole charge distribution in the G
We investigate the influence of the one-dimensional character of the phonon modes in a catalytically grown GaAs nanowire on the absorption spectrum of an embedded quantum dot, focusing on the on the contribution from the piezoelectric coupling. In general, the reduced dimensionally of the phonons leads to spectral side peaks and a zero-phonon line broadening due to the energetically lowest (acoust
A formalism for the calculations of electron transport in multiterminal quantum systems is presented. The systems are described by tight-binding Hamiltonians. It is shown that by exploiting real-space Green's functions, a problem of the electron transport in a multiterminal system can be reformulated into a problem of the electron transport in an effective two-terminal system and can then be treat
We report on a theoretical study of the quantum interference behaviour of electron flow from a double-slit device made from a semiconductor two-dimensional electron gas (2DEG) system with the slit widths in the quantum conductance regime. The device consists of a double slit and a single slit in a configuration where the single slit is placed on the source side of the double slit. The wavefunction
Wave propagators are introduced for transient wave propagation in a general one-dimensional medium. The definition of wave propagators is based upon a wave splitting technique. Several properties for the propagators are given and the relations between the method of propagators and the invariant imbedding method and the Green function approach are discussed.
Postal address Sölvegatan 37, 223 62 Lund Visiting address Ekologihuset, Kontaktvägen 10 (formerly Sölvegatan 37), Lund Telephone +46 46 222 00 00 Website cec.lu.se Announcement of funding for researchers to apply for doctoral student projects in Environmental Science Note: It is the researcher who apply for this funding, not the potential PhD student The Centre for Environmental and Climate Scien
In a solid-state host, attractive electron-electron interactions can lead to the formation of local electron pairs which play an important role in the understanding of prominent phenomena such as high T c superconductivity and the pseudogap phase. Recently, evidence of a paired ground state without superconductivity was demonstrated at the level of single electrons in quantum dots at the interface
We report electrical characterization of quantum dots formed by introducing pairs of thin wurtzite (WZ) segments in zinc blende (ZB) InAs nanowires. Regular Coulomb oscillations are observed over a wide gate voltage span, indicating that WZ segments create significant barriers for electron transport. We find a direct correlation of transport properties with quantum dot length and corresponding gro
