TY - JOUR
T1 - Doubly Dressed Bosons
T2 - Exciton Polaritons in a Strong Terahertz Field
AU - Piȩtka, B.
AU - Bobrovska, N.
AU - Stephan, D.
AU - Teich, M.
AU - Król, M.
AU - Winnerl, S.
AU - Pashkin, A.
AU - Mirek, R.
AU - Lekenta, K.
AU - Morier-Genoud, F.
AU - Schneider, H.
AU - Deveaud, B.
AU - Helm, M.
AU - Matuszewski, M.
AU - Szczytko, J.
N1 - Publisher Copyright:
© 2017 American Physical Society.
PY - 2017/8/16
Y1 - 2017/8/16
N2 - We demonstrate the existence of a novel quasiparticle, an exciton in a semiconductor doubly dressed with two photons of different wavelengths: a near infrared cavity photon and terahertz (THz) photon, with the THz coupling strength approaching the ultrastrong coupling regime. This quasiparticle is composed of three different bosons, being a mixture of a matter-light quasiparticle. Our observations are confirmed by a detailed theoretical analysis, treating quantum mechanically all three bosonic fields. The doubly dressed quasiparticles retain the bosonic nature of their constituents, but their internal quantum structure strongly depends on the intensity of the applied terahertz field.
AB - We demonstrate the existence of a novel quasiparticle, an exciton in a semiconductor doubly dressed with two photons of different wavelengths: a near infrared cavity photon and terahertz (THz) photon, with the THz coupling strength approaching the ultrastrong coupling regime. This quasiparticle is composed of three different bosons, being a mixture of a matter-light quasiparticle. Our observations are confirmed by a detailed theoretical analysis, treating quantum mechanically all three bosonic fields. The doubly dressed quasiparticles retain the bosonic nature of their constituents, but their internal quantum structure strongly depends on the intensity of the applied terahertz field.
UR - http://www.scopus.com/inward/record.url?scp=85028296470&partnerID=8YFLogxK
U2 - 10.1103/PhysRevLett.119.077403
DO - 10.1103/PhysRevLett.119.077403
M3 - Article
SN - 0031-9007
VL - 119
JO - Physical Review Letters
JF - Physical Review Letters
IS - 7
M1 - 077403
ER -