Spectrally resolved photon-echo spectroscopy of CdSe quantum dots at far from resonance excitation condition $$^{\S }$$ §
نویسندگان
چکیده
منابع مشابه
Single-photon and photon-pair emission from CdSe/Zn(S,Se) quantum dots
S. Strauf 1 , S. M. Ulrich 1 , K. Sebald 1 , P. Michler *,1 , T. Passow 2 , D. Hommel 2 , G. Bacher 3 , and A. Forchel 1 Institute for Solid State Physics, Semiconductor Optics, University of Bremen, P.O. Box 330440, 28334 Bremen, Germany 2 Institute for Solid State Physics, Semiconductor Epitaxy, University of Bremen, P.O. Box 330440, 28334 Bremen, Germany 3 Technical Physics, University of Wü...
متن کاملAll-optical modulation by plasmonic excitation of CdSe quantum dots
Photonics is a promising candidate technology for information processing, communication and data storage. Essential building blocks, such as logic elements and modulators, have been demonstrated. However, because of weak nonlinear light –matter interactions, these components typically require high power densities and large interaction volumes, limiting their application in dense chip-based inte...
متن کاملTime- and polarization-resolved optical spectroscopy of colloidal CdSe nanocrystal quantum dots in high magnetic fields.
In an effort to elucidate the spin (rather than charge) degrees of freedom in colloidal semiconductor nanocrystal quantum dots, we report on a series of static and time-resolved photoluminescence measurements of colloidal CdSe quantum dots in ultrahigh magnetic fields up to 45 T. At low temperatures (1.5-40 K), the steady-state photoluminescence (PL) develops a high degree of circular polarizat...
متن کاملColloidal CdSe/ZnS quantum dots as single- photon sources
The fluorescence of colloidal CdSe/ZnS nanocrystals at room temperature exhibits a perfect antibunching under continuous or pulsed excitation. In this paper, we discuss the consequences of fluorescence properties of CdSe nanocrystals on the generation of single photons. In particular,we examine the role of Auger processes in the inhibition of multiexcitonic emission. We also discuss the relatio...
متن کاملRoom temperature excitation spectroscopy of single quantum dots
We report a single molecule detection scheme to investigate excitation spectra of single emitters at room temperature. We demonstrate the potential of single emitter photoluminescence excitation spectroscopy by recording excitation spectra of single CdSe nanocrystals over a wide spectral range of 100 nm. The spectra exhibit emission intermittency, characteristic of single emitters. We observe l...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Chemical Sciences
سال: 2018
ISSN: 0974-3626,0973-7103
DOI: 10.1007/s12039-018-1554-9