Comment on “Magnetic field effects on oscillator strength, dipole polarizability and refractive index changes in spherical quantum dot”

Boosting the Optical Trapping of a Single Virus by Quantum Dots Tagging Increases Virus Polarizability and Trap Stiffness

“…Consequently, it poses a great challenge to trap viruses using optical tweezers. , Nonetheless, recent research indicates that the optical trapping force model for Rayleigh particles is primarily linked to the real part of polarizability. Quantum dots, often used as fluorescence labels for biomolecules, have the capability to augment the polarizability of particle surfaces. − Here, we built an optical tweezers system coupled with a laser confocal fluorescence imaging system, which can fluorescently image and trap the viruses in the culture medium in real time. , Under these conditions, we harnessed this technology to achieve fluorescence imaging of viruses and obtain trap stiffness. Here, we built an optical tweezers system coupled with a laser confocal fluorescence imaging system, which can fluorescently image and trap the viruses in the culture medium in real time. − At the same time, we also measured the trap stiffness of the modified viruses and obtained the same results.…”

Effect of size modulation and donor position on intersubbands refractive index changes of a donor within a spherical core/shell/shell semiconductor quantum dot

“…Proper adjustment of the physical properties of QDs is advantageous because of their potential applications in the development of semiconductor optoelectronic devices. For this reason, some optical properties of semiconductor QDs such as dipole transition [1,2], oscillator strength [3,4], photoionization cross-sections [5], optical absorption coefficients (OACs) [6,7] and refractive index changes (RICs) [3,8] have attracted the attention of researchers in experimental and theoretical studies in recent years.…”

“…In theoretical studies, it is common to use spherical shaped QDs, and many researchers have focused on the optical properties of this type of structure [3,6,[14][15][16]. Thanks to the rapid development of material growth techniques such as molecular beam epitaxy, metalorganic chemical vapor deposition and electron lithography and the advancement of chemical production processes, various dimensional new generation quantum nanostructures that allow electrons to be confined in these nanostructures have been produced, one of which is the coated spherical QDs called core/shell/shell QDs (CSSQDs) [17,18].…”

Effect of magnetic field, size and donor position on the absorption coefficients related a donor within the core/shell/shell quantum dot

“…Proper adjustment of these physical properties makes QDs advantageous due to their potential application in the development of semiconductor optoelectronic devices. Therefore, some optical properties of semiconductor QDs such as dipole transition [1,2], oscillator strength [3,4], photoionization cross-section [5], optical absorption coefficients (OACs) [6,7] and refractive index changes (RICs) [3,8] have attracted great interest in experimental and theoretical studies in last years.…”

“…In theoretical studies on QDs, it is usual to get a spherical shape and many works have focused on the optical properties of this type of structure [3,6,[18][19][20]. Thanks to the rapid development of crystal magnification procedures such as molecular beam epitaxy, metal organic chemical vapor deposition and electron lithography, and the advancement of chemical production processes, various dimensional new generation quantum nanostructures have been produced and one of which is core/shell/shell QD (CSSQD) [21,22].…”