Zobrazeno 1 - 10
of 44
pro vyhledávání: '"Qixian Peng"'
Rapid Evaluation of All-Optical Modulation in Quantum Cascade Laser Using Photoluminescence Spectrum
Autor:
Haijun Zhou, Chen Peng, Liguo Zhu, Tao Chen, Yuankun Sun, Gang Chen, Zeren Li, Qixian Peng, Peng Feng, Biao Wei
Publikováno v:
IEEE Photonics Journal, Vol 10, Iss 4, Pp 1-9 (2018)
All-optical modulation in a quantum cascade laser (QCL) can be rapidly evaluated using a photoluminescence (PL) spectrum. The PL spectrum reflects the electron transition rate of the sub-bands of the active region of a QCL. The peak position, amplitu
Externí odkaz:
https://doaj.org/article/3bb42357baae45aebb1f01425fe7635d
Autor:
Detian Wang, Long Wang, Peng Gao, Ruiqiang Shi, Liguo Zhu, Qixian Peng, Zeren Li, Jianheng Zhao, Tunan Chen, Fei Li, Hua Feng
Publikováno v:
AIP Advances, Vol 9, Iss 6, Pp 065306-065306-6 (2019)
Diagnosing a stroke at an emergency site is an important potential clinical application for near-infrared light techniques. We have fabricated a hybrid diffuse optical device that combines diffuse optical spectroscopy and diffuse correlation spectros
Externí odkaz:
https://doaj.org/article/29adef08c2b140e1bc5421d4e010cd3e
Publikováno v:
AIP Advances, Vol 9, Iss 1, Pp 015315-015315-9 (2019)
Diffuse correlation spectroscopy (DCS) has recently been employed for noninvasive acquisition of blood flow information in deep tissues. In this study, we build a new DCS device based on software correlator. Through the intralipid phantom experiment,
Externí odkaz:
https://doaj.org/article/441d407a9f77492b9673d5c43c31103c
Publikováno v:
The Review of scientific instruments. 90(12)
A quick simultaneous multispot laser induced breakdown spectroscopy (LIBS) system has been proposed. The basic idea is to combine the Diffraction Beam Splitter (DBS) with the linear-to-linear fiber bundle. The DBS divided the incident laser beam into
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::772e65c13dd89b15cff715e4dfe8ea6e
https://pubmed.ncbi.nlm.nih.gov/31893805
https://pubmed.ncbi.nlm.nih.gov/31893805
Rapid Evaluation of All-Optical Modulation in Quantum Cascade Laser Using Photoluminescence Spectrum
Autor:
Peng Feng, Qixian Peng, Zeren Li, Biao Wei, Haijun Zhou, Li-Guo Zhu, Tao Chen, Gang Chen, Chen Peng, Yuankun Sun
Publikováno v:
IEEE Photonics Journal, Vol 10, Iss 4, Pp 1-9 (2018)
All-optical modulation in a quantum cascade laser (QCL) can be rapidly evaluated using a photoluminescence (PL) spectrum. The PL spectrum reflects the electron transition rate of the sub-bands of the active region of a QCL. The peak position, amplitu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d16109a5998e330a70133af95e91fb6b
https://doi.org/10.1109/jphot.2018.2859823
https://doi.org/10.1109/jphot.2018.2859823
Autor:
Gang Chen, Tao Chen, Qixian Peng, Chen Peng, Zeren Li, Li-Guo Zhu, Yi Zou, Haijun Zhou, Du Lianghui, Zhu Yu
Publikováno v:
IEEE Photonics Technology Letters. 30:1099-1102
Pulse optimization and control are demonstrated in a standard middle-infrared quantum cascade laser by illuminating its front facet with two near-infrared lasers. The 1550- and 850-nm near-infrared lasers are used to optimize the pulse rise/fall time
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5b8fbccb5dfdd0514a996a5163086706
https://doi.org/10.1109/lpt.2018.2833169
https://doi.org/10.1109/lpt.2018.2833169
Publikováno v:
Review of Scientific Instruments. 92:105004
The immunity and survivability in a strong electromagnetic environment make the Faraday Rotation (FR) method irreplaceable for measuring pulsed magnetic fields. We present a dual-channel FR method that achieves more stable and precise measurement and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::51372060102e265beb5b17764aa407d6
https://doi.org/10.1063/5.0058980
https://doi.org/10.1063/5.0058980
Autor:
Deng Xiangyang, Guanghua Chen, Wang Jing, Liu Shouxian, Qixian Peng, Li Jianzhong, ShiXing Tao
Publikováno v:
The Review of scientific instruments. 90(3)
Broadband laser ranging (BLR) is an appropriate method to obtain absolute distance in dynamic experiments. In this article, we first analyze the performance limit for BLR and indicate that the measuring range can be hardly increased while keeping the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5cb7e4573d5958a39ef46acb49c97749
https://pubmed.ncbi.nlm.nih.gov/30927815
https://pubmed.ncbi.nlm.nih.gov/30927815
Autor:
Wesley B. Baker, Hua Feng, He Hui, Zeren Li, Tunan Chen, Li-Guo Zhu, Detian Wang, Fei Li, Qixian Peng, Peng Gao
Publikováno v:
Neurophotonics
In a pilot study of 11 healthy adults (24 to 39 years, all male), we characterize the influence of external probe pressure on optical diffuse correlation spectroscopy (DCS) measurements of pulsatile blood flow obtained on the forearm and forehead. Fo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2eea8b95bee47630b5a849bf678717f9
https://pubmed.ncbi.nlm.nih.gov/31548976
https://pubmed.ncbi.nlm.nih.gov/31548976
Publikováno v:
Optics Communications. 381:43-47
This paper proposes a Monte Carlo (MC) based angular distribution estimation method of multiply scattered photons for underwater imaging. This method targets on turbid waters. Our method is based on applying typical Monte Carlo ideas to the present p
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1ad2e795d5bc29d14abbf11f367692f1
https://doi.org/10.1016/j.optcom.2016.06.066
https://doi.org/10.1016/j.optcom.2016.06.066