Title :
Driving a harmonic quantum oscillator with few-cycle THz pulses
Author :
Kersting, R. ; Heyman, J.N. ; Hoffmann, R. ; Strasser, G. ; Maranowski, K.D. ; Gossard, A.C. ; Unterrainer, K.
Author_Institution :
Inst. fur Festkorperelektronik, Tech. Univ. Wien, Austria
Abstract :
Summary form only given. Quantum engineering of III-V semiconductors allows the realization of band structures with parabolic shape. Due to their equally spaced subbands, these quantum structures are ideal systems to study the dielectric response of charge carriers to an ultrafast electric field change. In our time-resolved studies we investigate the response of the electronic charge carrier system in a GaAs-AlGaAs parabolic quantum well (PQW) to an exciting fewcycle THz pulse.
Keywords :
III-V semiconductors; aluminium compounds; band structure; gallium arsenide; high-speed optical techniques; semiconductor quantum wells; submillimetre wave spectra; time resolved spectra; GaAs-AlGaAs; GaAs-AlGaAs parabolic quantum well; III-V semiconductors; band structures; charge carriers; dielectric response; electronic charge carrier system; equally spaced subbands; exciting fewcycle THz pulse; few-cycle THz pulses; harmonic quantum oscillator driving; parabolic shape; quantum engineering; quantum structures; time-resolved studies; ultrafast electric field change; Charge carriers; Dielectrics; Frequency; Gallium arsenide; Laser beams; Laser excitation; Optical scattering; Oscillators; Plasma temperature; Ultrafast optics;
Conference_Titel :
Quantum Electronics Conference, 1998. IQEC 98. Technical Digest. Summaries of papers presented at the International
Conference_Location :
San Francisco, CA, USA
Print_ISBN :
1-55752-541-2
DOI :
10.1109/IQEC.1998.680316
