scholarly journals Nonlinear optical diagnostics crystal structure of semiconductor films in molecular beam epitaxy

2021 ◽  
Keyword(s):  
Crystal Structure ◽  
Molecular Beam Epitaxy ◽  
Second Harmonic Generation ◽  
Harmonic Generation ◽  
Nonlinear Optical ◽  
Molecular Beam ◽  
Second Harmonic ◽  
Universal Method ◽  
Semiconductor Films ◽  
Control And Management

The main advantage of molecular beam epitaxy (MBE) is the control and management of the parameters of atomic and molecular fluxes, as well as the characteristics of growing layers during growth. A constructively simple and fairly universal method for diagnosing the struc-tural perfection of semiconductor films during their synthesis in an MBE device for second harmonic generation (SH) using a repetitively pulsed YAG: Nd laser is presented.

First-Principles Calculations of Nonlinear Optical Response Functions in Semiconductors

1999 ◽  
Vol 579 ◽  
Author(s):  
Sergey N. Rashkeev ◽  
Walter R. L. Lambrecht
Keyword(s):  
Crystal Structure ◽  
Second Harmonic Generation ◽  
Harmonic Generation ◽  
First Principles ◽  
Nonlinear Optical ◽  
Second Harmonic ◽  
Second Order ◽  
Response Functions ◽  
First Principles Calculations ◽  
Lmto Method

ABSTRACTWe present our implementation of the length-gauge formalism of Sipe and coworkers (Phys. Rev. B 48, 11705 (1993); ibid 52, 14636 (1995)) using the linearized muffin-tin orbital (LMTO) method and discuss its application to the calculation of second order response functions. The importance of gap corrections beyond LDA is discussed. As primary application, we discuss the second harmonic generation (SHG) coefficients of the SiC polytypes and of the chalcopyrites of both the II-IV-V2 and I-III-VI2 families. These examples illustrate the relation of the second order response function to the modification of the crystal structure and chemical substitutions.

Sr4Pb1.5Sb5O5Se8: a new mid-infrared nonlinear optical material with a moderate SHG response

CrystEngComm ◽  
2020 ◽  
Vol 22 (20) ◽  
pp. 3526-3530 ◽  
Author(s):  
Yang Wang ◽  
Mengjia Luo ◽  
Pei Zhao ◽  
Xiangli Che ◽  
Yunzhen Cao ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Second Harmonic Generation ◽  
Harmonic Generation ◽  
Nonlinear Optical ◽  
Second Harmonic ◽  
Optical Material ◽  
Nonlinear Optical Material ◽  
Mid Infrared

The crystal structure and second-harmonic generation response of the new nonlinear optical material, Sr4Pb1.5Sb5O5Se8, were examined.

Synthesis, crystal structure and second-order nonlinear optical property of a novel pentanary selenide (K3I)[InB12(InSe4)3]

2016 ◽  
Vol 45 (25) ◽  
pp. 10459-10465 ◽  
Author(s):  
Sheng-Ping Guo ◽  
Yang Chi ◽  
Bin-Wen Liu ◽  
Guo-Cong Guo
Keyword(s):  
Crystal Structure ◽  
Optical Property ◽  
Second Harmonic Generation ◽  
Harmonic Generation ◽  
Nonlinear Optical ◽  
Nonlinear Optical Property ◽  
Energy Gap ◽  
Second Harmonic ◽  
Second Order

A novel pentanary selenide (K3I)[InB12(InSe4)3] (P6322) features InSe4 tetrahedron consolidated B12 icosahedron and 1-D chain constructed by InSe6 octahedron and B12Se12 cluster. It is an indirect semiconductor with the energy gap of 1.15 eV and second harmonic generation-active.

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