Third harmonic generation in quantum dot with Rashba spin orbit interaction

Liquid-Phase Exfoliation of Bismuth Telluride Iodide (BiTeI): Structural and Optical Properties of Single-/Few-Layer Flakes

“…The morphological, structural, optical, and chemical properties of the exfoliated BiTeI flakes are evaluated here through a combination of microscopic and spectroscopic techniques, including nonlinear optical microscopy for second-harmonic generation (SHG). In fact, the concurrent spin–orbit coupling and structural inversion asymmetry of Rashba-type materials manifest themselves in nonlinear optical signals whose characteristics can be defined or even correlated to the Rashba strength of the material. , Consequently, 2D Rashba-type materials potentially provide novel nanometer-thin platforms for nonlinear optical studies and applications. − In addition, as shown for other polar 2D materials, such as group-IV metal monochalcogenides, the lack of inversion symmetry and strong quantum confinement can lead to extraordinary second-order nonlinear optical effects . Even more, since the nanometric thickness of exfoliated materials is much smaller than the second-harmonic (SH) coherence length, 2D materials bypass phase-matching constraints encountered in 3D nonlinear crystals. , Thus, we measure SHG from few-layer BiTeI flakes, which exhibit a large nonlinear optical response 10-fold more intense than that of bulk BiTeI crystals and of the same order of magnitude as that of group VI monolayer transition metal dichalcogenides (TMDs) (|χ (2) | ∼0.1–1 nm V –1 ). , These results prove the potential of LPE-produced BiTeI as a solution-processable low-dimensional Rashba-type material.…”

Impacts of external fields and Rashba and Dresselhaus spin–orbit interactions on the optical rectification, second and third harmonic generations of a quantum ring

“…RSOI and DSOI effects are induced by structure inversion asymmetry and bulk inversion asymmetry in nano-semiconductors, respectively. These two types of SOIs along with external factors such as electric and magnetic fields, intense laser field, temperature, pressure and excitonic effects can strongly modify electrical and optical properties of quantum structures [34][35][36][37][38][39][40][41].…”

Calculation of Zeeman splitting and Zeeman transition energies of spherical quantum dot in uniform magnetic field

“…In recent years, QDs have been extensively studied due to their potential applications in high performance devices. Therefore, a great deal of works have been performed on the electronic structures [2][3][4][5][6][7], binding energies [8][9][10][11], spin effects [12][13][14][15] and optical properties [16][17][18][19][20][21][22][23][24][25][26][27][28][29][30][31][32] of QDs with different shape, size and the confinement potential by using various methods.…”