Zobrazeno 1 - 10
of 35
pro vyhledávání: '"Hanyou Chu"'
Autor:
Yia-Chung Chang, Hanyou Chu
Publikováno v:
Physical Review B. 54:5020-5028
We present theoretical calculations of optical absorption-gain spectra for condensed excitons in both three dimensional (3D), 2D, and quasi-2D systems (appropriate for semiconductor quantum wells) as functions of the electron-hole pair density and te
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9e2712a084ff8f6768c15cf60284a87d
https://doi.org/10.1103/physrevb.54.5020
https://doi.org/10.1103/physrevb.54.5020
Publikováno v:
Physical Review B. 47:1489-1499
We have performed theoretical studies on Raman scattering of GaAs-AlAs superlattices. Both effects of superlattice phonons and electronic structures are included in our calculation. For phonons in superlattices, we used a rigid-ion model that takes i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1193469a5844d10f4989e9bf7c360a1a
https://doi.org/10.1103/physrevb.47.1489
https://doi.org/10.1103/physrevb.47.1489
Autor:
Hanyou Chu
Publikováno v:
Solid State Communications. 80:1003-1007
The ground state of the Hubbard model in a square lattice is examined in the Hartree-Fock mean field approximation at zero temperature. At small finite hole doping, the system has periodically distributed soliton like structures whose modulations are
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3add63f38786826981445d2f855bcd47
https://doi.org/10.1016/0038-1098(91)90408-n
https://doi.org/10.1016/0038-1098(91)90408-n
Publikováno v:
Superlattices and Microstructures. 9:383-389
We present theoretical studies of phonon modes in semiconductor superlattices in a rigid-ion model. We examine the dispersion curves for phonons propagating in any directions, taking into account the long-range Coulomb interaction. We introduce an al
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ecde8ba5418c3e0abd96719bea78bfd2
https://doi.org/10.1016/0749-6036(91)90264-r
https://doi.org/10.1016/0749-6036(91)90264-r
Autor:
E. W. Fenton, Hanyou Chu
Publikováno v:
Phase Transitions. 28:27-31
In the electron-electron interaction the r-space structure caused by magnetic fluctuations at the phase transition from a nonmagnetic metal to an antiferromagnetic metal gives rise to a d-wave attractive interaction for Cooper pairing. This is a cont
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::846d20914a65fba78dcd2358a7100e29
https://doi.org/10.1080/01411599008207929
https://doi.org/10.1080/01411599008207929
Publikováno v:
SPIE Proceedings.
Spectra of contact hole arrays with target diameters ranging from 106 to 131 nm and pattern pitch ranging from 220 to 300 nm are taken from an off-axis (65°) rotating compensator spectroscopic ellipsometry (RCSE).[1] 3-dimensional finite difference
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f5d75fd9fda1e5c0d1d36dcdb9656f05
https://doi.org/10.1117/12.598955
https://doi.org/10.1117/12.598955
Publikováno v:
Metrology, Inspection, and Process Control for Microlithography XVIII.
In real-time optical CD applications of shallow trench isolation (STI), shallow trench removal (STR), deep trench isolation (DTI), and deep trench removal (DTR), a single recipe is required for each type of application to accommodate wide ranges of p
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9855e8a531559baa3bea615e41908a5f
https://doi.org/10.1117/12.556583
https://doi.org/10.1117/12.556583
Autor:
Hanyou Chu, Youxian Wen, Osman Sorkhabi, Xuelong Cao, Guangwei Li, Yia-Chung Chang, Jon Opsal, Zhiming Jiang
Publikováno v:
Metrology, Inspection, and Process Control for Microlithography XVIII.
This paper presents measurement results of 3-D contact hole profiles using RT/CD ® technology for various diameter-to-space (D/S) ratios and film stacks. The key controlling parameters (hole depth, diameter, sidewall angle, and hole openness, etc.)
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7469abb184147542d5d4e1c429ede904
https://doi.org/10.1117/12.556587
https://doi.org/10.1117/12.556587
Autor:
Hanyou Chu
Publikováno v:
SPIE Proceedings.
Fast and efficient finite difference scheme in the vertical direction for optical scattering of gratings is presented. A second order central difference with boundary corrections or a pseudo fourth order operator splitting method is used. A stable re
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9f25b463852eda97145e7d6cc86a8476
https://doi.org/10.1117/12.507464
https://doi.org/10.1117/12.507464
Publikováno v:
SPIE Proceedings.
We have developed fast numerical solutions to the diffraction of light from a periodic array of contact holes (CH) in microelectronic structures. We present results for contact holes in oxide and in 193 nm and 248 nm photoresists. We also show detect
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fb4ec9ee1265c84f749b1e9513ffc2b0
https://doi.org/10.1117/12.487607
https://doi.org/10.1117/12.487607