PMID- 26578287
OWN - NLM
STAT- PubMed-not-MEDLINE
DCOM- 20160318
LR  - 20181113
IS  - 2045-2322 (Electronic)
IS  - 2045-2322 (Linking)
VI  - 5
DP  - 2015 Nov 18
TI  - Ultrawide electrical tuning of light matter interaction in a high electron 
      mobility transistor structure.
PG  - 16812
LID - 10.1038/srep16812 [doi]
LID - 16812
AB  - The interaction between intersubband resonances (ISRs) and metamaterial 
      microcavities constitutes a strongly coupled system where new resonances form 
      that depend on the coupling strength. Here we present experimental evidence of 
      strong coupling between the cavity resonance of a terahertz metamaterial and the 
      ISR in a high electron mobility transistor (HEMT) structure. The device is 
      electrically switched from an uncoupled to a strongly coupled regime by tuning 
      the ISR with epitaxially grown transparent gate. The asymmetric potential in the 
      HEMT structure enables ultrawide electrical tuning of ISR, which is an order of 
      magnitude higher as compared to an equivalent square well. For a single 
      heterojunction with a triangular confinement, we achieve an avoided splitting of 
      0.52 THz, which is a significant fraction of the bare intersubband resonance at 2 
      THz.
FAU - Pal, Shovon
AU  - Pal S
AD  - Lehrstuhl fur Angewandte Festkorperphysik, Ruhr-Universitat Bochum, D-44780 
      Bochum, Germany.
AD  - AG Terahertz Spektroskopie und Technologie, Ruhr-Universitat Bochum, D-44780 
      Bochum, Germany.
FAU - Nong, Hanond
AU  - Nong H
AD  - AG Terahertz Spektroskopie und Technologie, Ruhr-Universitat Bochum, D-44780 
      Bochum, Germany.
FAU - Markmann, Sergej
AU  - Markmann S
AD  - Lehrstuhl fur Angewandte Festkorperphysik, Ruhr-Universitat Bochum, D-44780 
      Bochum, Germany.
AD  - AG Terahertz Spektroskopie und Technologie, Ruhr-Universitat Bochum, D-44780 
      Bochum, Germany.
FAU - Kukharchyk, Nadezhda
AU  - Kukharchyk N
AD  - Lehrstuhl fur Angewandte Festkorperphysik, Ruhr-Universitat Bochum, D-44780 
      Bochum, Germany.
FAU - Valentin, Sascha R
AU  - Valentin SR
AD  - Lehrstuhl fur Angewandte Festkorperphysik, Ruhr-Universitat Bochum, D-44780 
      Bochum, Germany.
FAU - Scholz, Sven
AU  - Scholz S
AD  - Lehrstuhl fur Angewandte Festkorperphysik, Ruhr-Universitat Bochum, D-44780 
      Bochum, Germany.
FAU - Ludwig, Arne
AU  - Ludwig A
AD  - Lehrstuhl fur Angewandte Festkorperphysik, Ruhr-Universitat Bochum, D-44780 
      Bochum, Germany.
FAU - Bock, Claudia
AU  - Bock C
AD  - Lehrstuhl fur Werkstoffe und Nanoelektronik, Ruhr-Universitat Bochum, D-44780 
      Bochum, Germany.
FAU - Kunze, Ulrich
AU  - Kunze U
AD  - Lehrstuhl fur Werkstoffe und Nanoelektronik, Ruhr-Universitat Bochum, D-44780 
      Bochum, Germany.
FAU - Wieck, Andreas D
AU  - Wieck AD
AD  - Lehrstuhl fur Angewandte Festkorperphysik, Ruhr-Universitat Bochum, D-44780 
      Bochum, Germany.
FAU - Jukam, Nathan
AU  - Jukam N
AD  - AG Terahertz Spektroskopie und Technologie, Ruhr-Universitat Bochum, D-44780 
      Bochum, Germany.
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
DEP - 20151118
PL  - England
TA  - Sci Rep
JT  - Scientific reports
JID - 101563288
PMC - PMC4649472
EDAT- 2015/11/19 06:00
MHDA- 2015/11/19 06:01
PMCR- 2015/11/18
CRDT- 2015/11/19 06:00
PHST- 2015/05/15 00:00 [received]
PHST- 2015/10/20 00:00 [accepted]
PHST- 2015/11/19 06:00 [entrez]
PHST- 2015/11/19 06:00 [pubmed]
PHST- 2015/11/19 06:01 [medline]
PHST- 2015/11/18 00:00 [pmc-release]
AID - srep16812 [pii]
AID - 10.1038/srep16812 [doi]
PST - epublish
SO  - Sci Rep. 2015 Nov 18;5:16812. doi: 10.1038/srep16812.