Výsledky vyhledávání - "Pei-Kang Chung"

We study the far-infrared absorption properties of a thin GaAs film on Au. We show that a 1.2-μm GaAs film on Au can completely absorb an electromagnetic wave of 7.9 THz and totally reflect the waves of frequencies not very close to 7.9 THz. The uni

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2e16f032ff521031244c5ddf7e043740
https://pubmed.ncbi.nlm.nih.gov/26274683

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Evidence for capture of holes into resonant states in boron-doped silicon

Autor: Koung-An Chao, Shun-Tung Yen, V. N. Tulupenko, Chien-Ping Lee, A. Dalakyan, Pei Kang Chung, E. S. Cheng

Publikováno v: Journal of Applied Physics. 96:4970-4975

The variation of hole population in the resonant states of B-doped Si excited by sequences of short electric-field pulses has been investigated by the technique of time-resolved step-scan far-infrared spectroscopy. From the variation of the p(3/2) ab

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::0cd66198c2e2845a6ec1ccf8e94f2d70
https://doi.org/10.1063/1.1795985

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Extraction of optical constants from maxima of fringing reflectance spectra

Autor: Shun-Tung Yen, Pei Kang Chung

Publikováno v: Applied Optics. 54:663

We propose a scheme to extract the refractive index and the extinction coefficient of dielectrics. The extraction needs only a reflectance spectrum with reliable successive maxima of fringing oscillations measured from a dielectric film that is eithe

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f9f53a7293c13ed1c68c42059ec45e9b
https://doi.org/10.1364/ao.54.000663

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Enhanced thermal radiation in terahertz and far-infrared regime by hot phonon excitation in a field effect transistor

Autor: Shun-Tung Yen, Pei Kang Chung

Publikováno v: Journal of Applied Physics. 116:183101

We demonstrate the hot phonon effect on thermal radiation in the terahertz and far-infrared regime. A pseudomorphic high electron mobility transistor is used for efficiently exciting hot phonons. Boosting the hot phonon population can enhance the eff

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::9ca9365aee4caff21c42243a0b304e63
https://doi.org/10.1063/1.4901331

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Extraction of infrared optical constants from fringing reflectance spectra

Autor: Shun-Tung Yen, Pei-Kang Chung

Publikováno v: Journal of Applied Physics. 116:153101

We propose a simple and reliable method for extracting the optical constants of homogeneous dielectrics which can be pure or impure, and polar or nonpolar. The extraction is made from fringing reflectance spectra of slab samples with and without meta

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b931b460361cd2f0844e6ce3d8a0bdb2
https://doi.org/10.1063/1.4898037

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Analysis of two-phonon infrared spectral features of gallium arsenide and indium phosphide by first-principles calculations

Autor: Shun-Tung Yen, Pei Kang Chung, Huang-Hsiang Lin

Publikováno v: Materials Research Express. 1:045901

We perform a self-consistent calculation based on density functional perturbation theory to analyze the infrared spectral features of GaAs and InP arising from two-phonon processes. The features are identified and assigned the critical points in the

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::70fb2992bd313e468d1cb578ed8c6901
https://doi.org/10.1088/2053-1591/1/4/045901

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Optical properties and potential applications of ɛ-GaSe at terahertz frequencies

Autor: Jung Y. Huang, Pei Kang Chung, Sung Hui Lin, Ci-Ling Pan, Shun-Tung Yen, Chen Shiung Chang, Ching Wei Chen, Tsung Ta Tang

Publikováno v: Journal of the Optical Society of America B. 26:A58

Ordinary and extraordinary refractive indices of an ɛ-GaSe crystal at terahertz (THz) frequencies are experimentally determined in this study. Fitting experimental data by THz time-domain spectroscopy (THz-TDS) and a Fourier transform infrared spect

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::3bf04f47384aea38b5d41f5f5fabdfe4
https://doi.org/10.1364/josab.26.000a58

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