Pub Date : 2009-10-30DOI: 10.1109/CLEOPR.2009.5292609
T. Tsai, Tsung-han Wu, Jung-cheng Liao, T. Wei, H. Chiang, Jih-shang Hwang, D. Tsai, Yang-fang Chen
Nonlinear optical absorption of InN epitaxial films in the range of 720-790 nm were investigated by Z-scan measurements. The optical absorption cross-sections of the InN films were estimated, and the values are found in good agreement with band-filling model.
{"title":"Nonlinear absorption of InN epitaxial films probed by femtosecond pulsed transmission Z-scan measurements","authors":"T. Tsai, Tsung-han Wu, Jung-cheng Liao, T. Wei, H. Chiang, Jih-shang Hwang, D. Tsai, Yang-fang Chen","doi":"10.1109/CLEOPR.2009.5292609","DOIUrl":"https://doi.org/10.1109/CLEOPR.2009.5292609","url":null,"abstract":"Nonlinear optical absorption of InN epitaxial films in the range of 720-790 nm were investigated by Z-scan measurements. The optical absorption cross-sections of the InN films were estimated, and the values are found in good agreement with band-filling model.","PeriodicalId":6452,"journal":{"name":"2009 Conference on Lasers & Electro Optics & The Pacific Rim Conference on Lasers and Electro-Optics","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2009-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75407773","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2009-10-30DOI: 10.1109/CLEOPR.2009.5292465
C. C. Huang, Y. Ho, K. Knight, J. Rarity, D. Hewak
Focused ion beam technique has been applied to fabricate ring resonators in Ge-Sb-S thin films for optoelectronic applications. The CVD-grown Ge-Sb-S thin films have been characterizatezed by micro-Raman, scanning electron microscopy, energy dispersive X-ray analysis and UV-VIS-NIR spectroscopy and the properties of the resonator are being assessed.
{"title":"Focused ion beam etched ring-resonator in CVD-grown Ge-Sb-S thin films","authors":"C. C. Huang, Y. Ho, K. Knight, J. Rarity, D. Hewak","doi":"10.1109/CLEOPR.2009.5292465","DOIUrl":"https://doi.org/10.1109/CLEOPR.2009.5292465","url":null,"abstract":"Focused ion beam technique has been applied to fabricate ring resonators in Ge-Sb-S thin films for optoelectronic applications. The CVD-grown Ge-Sb-S thin films have been characterizatezed by micro-Raman, scanning electron microscopy, energy dispersive X-ray analysis and UV-VIS-NIR spectroscopy and the properties of the resonator are being assessed.","PeriodicalId":6452,"journal":{"name":"2009 Conference on Lasers & Electro Optics & The Pacific Rim Conference on Lasers and Electro-Optics","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2009-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74124367","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2009-10-30DOI: 10.1109/CLEOPR.2009.5292234
Jian-Wei Pan
Quantum information science and atom optics are among the most active fields in modern physics. In recent years, many theoretical efforts have been made to combine these two fields. Recent experimental progresses have shown the in-principle possibility to perform scalable quantum information processing (QIP) with linear optics and atomic ensembles. One of our main activities is to use atomic qubits as quantum memory and exploit photonic qubits for information transfer and processing to achieve efficient linear optics QIP. On the one hand, utilizing the interaction between laser pulses and ultra-cold atomic ensembles we experimentally investigate the potentials of atomic ensembles in the gas phase to build quantum repeaters for long-distance quantum communication, that is, to develop a new technological solution for quantum repeaters making use of the effective qubit-type entanglement of two cold atomic ensembles by a projective measurement of individual photons by spontaneous Raman processes. On the other hand, building on our long experience in research on multi-photon entanglement, we are also working on a number of experiments in the field of QIP with particular emphasis on fault-tolerant quantum computation, photon-loss-tolerant quantum computation and cluster-state based quantum simulation. In future, by combining the techniques developed in the above quantum memory and multi-photon interference experiments, we will experimentally investigate the possibility to achieve quantum teleportation between photonic and atomic qubits, quantum teleportation between remote atomic qubits and efficient entanglement generation via classical feed-forward. The techniques that are being developed will lay the basis for future large-scale realizations of linear optical QIP with atoms and photons.
{"title":"Experimental manipulation of atoms and photons: Applications in quantum communication, computation and simulation","authors":"Jian-Wei Pan","doi":"10.1109/CLEOPR.2009.5292234","DOIUrl":"https://doi.org/10.1109/CLEOPR.2009.5292234","url":null,"abstract":"Quantum information science and atom optics are among the most active fields in modern physics. In recent years, many theoretical efforts have been made to combine these two fields. Recent experimental progresses have shown the in-principle possibility to perform scalable quantum information processing (QIP) with linear optics and atomic ensembles. One of our main activities is to use atomic qubits as quantum memory and exploit photonic qubits for information transfer and processing to achieve efficient linear optics QIP. On the one hand, utilizing the interaction between laser pulses and ultra-cold atomic ensembles we experimentally investigate the potentials of atomic ensembles in the gas phase to build quantum repeaters for long-distance quantum communication, that is, to develop a new technological solution for quantum repeaters making use of the effective qubit-type entanglement of two cold atomic ensembles by a projective measurement of individual photons by spontaneous Raman processes. On the other hand, building on our long experience in research on multi-photon entanglement, we are also working on a number of experiments in the field of QIP with particular emphasis on fault-tolerant quantum computation, photon-loss-tolerant quantum computation and cluster-state based quantum simulation. In future, by combining the techniques developed in the above quantum memory and multi-photon interference experiments, we will experimentally investigate the possibility to achieve quantum teleportation between photonic and atomic qubits, quantum teleportation between remote atomic qubits and efficient entanglement generation via classical feed-forward. The techniques that are being developed will lay the basis for future large-scale realizations of linear optical QIP with atoms and photons.","PeriodicalId":6452,"journal":{"name":"2009 Conference on Lasers & Electro Optics & The Pacific Rim Conference on Lasers and Electro-Optics","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2009-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74326075","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2009-10-30DOI: 10.1109/CLEOPR.2009.5292095
H. Teng, Chenxia Yun, Hainian Han, Jiangfeng Zhu, Xinming Zhong, Wei Zhang, Q. Du, Zhiyi Wei
Coherent extreme-ultraviolet (XUV) radiation was studied by interaction of Carrier-Envelope (CE) phase stabilized high energy sub-5-fs infrared (800 nm) laser pulses with neon gas at a repetition rate of 1 kHz. The results show generation of isolated attosecond XUV pulses.
{"title":"Carrier-envelope phase stabilized 5-fs laser and generation of continuum XUV radiation","authors":"H. Teng, Chenxia Yun, Hainian Han, Jiangfeng Zhu, Xinming Zhong, Wei Zhang, Q. Du, Zhiyi Wei","doi":"10.1109/CLEOPR.2009.5292095","DOIUrl":"https://doi.org/10.1109/CLEOPR.2009.5292095","url":null,"abstract":"Coherent extreme-ultraviolet (XUV) radiation was studied by interaction of Carrier-Envelope (CE) phase stabilized high energy sub-5-fs infrared (800 nm) laser pulses with neon gas at a repetition rate of 1 kHz. The results show generation of isolated attosecond XUV pulses.","PeriodicalId":6452,"journal":{"name":"2009 Conference on Lasers & Electro Optics & The Pacific Rim Conference on Lasers and Electro-Optics","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2009-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74353572","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2009-10-30DOI: 10.1109/CLEOPR.2009.5292490
Jiansheng Tang, Shujun Yang, A. Bhatranand
Barium titanium waveguide electro-optic modulators with Al-doped ZnO transparent conducting oxide electrodes are realized. Low half-wave voltage of 1.1 V and half-wave voltage length product of 1.1 V-cm are achieved at 1550 nm wavelength.
{"title":"Electro-optic barium titanate waveguide modulators with transparent conducting oxide electrodes","authors":"Jiansheng Tang, Shujun Yang, A. Bhatranand","doi":"10.1109/CLEOPR.2009.5292490","DOIUrl":"https://doi.org/10.1109/CLEOPR.2009.5292490","url":null,"abstract":"Barium titanium waveguide electro-optic modulators with Al-doped ZnO transparent conducting oxide electrodes are realized. Low half-wave voltage of 1.1 V and half-wave voltage length product of 1.1 V-cm are achieved at 1550 nm wavelength.","PeriodicalId":6452,"journal":{"name":"2009 Conference on Lasers & Electro Optics & The Pacific Rim Conference on Lasers and Electro-Optics","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2009-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78595826","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2009-10-30DOI: 10.1109/CLEOPR.2009.5292493
L. Dordová, O. Wilfert
The goal of the paper is to compare turbulent attenuation calculated by Rytov relations and the method of available power as well as determine maximal range of free space optical link on the basis of communication margin.
{"title":"Comparison of turbulent attenuation determined by rytov and available power method","authors":"L. Dordová, O. Wilfert","doi":"10.1109/CLEOPR.2009.5292493","DOIUrl":"https://doi.org/10.1109/CLEOPR.2009.5292493","url":null,"abstract":"The goal of the paper is to compare turbulent attenuation calculated by Rytov relations and the method of available power as well as determine maximal range of free space optical link on the basis of communication margin.","PeriodicalId":6452,"journal":{"name":"2009 Conference on Lasers & Electro Optics & The Pacific Rim Conference on Lasers and Electro-Optics","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2009-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76381523","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2009-10-30DOI: 10.1109/CLEOPR.2009.5292093
P. Kinsler
I show how only a single assumption is necessary when deriving a general uni-directional first-order pulse propagation equation without bandwidth constraints. It reduces easily to most existing propagation models, without requiring poorly controlled approximations.
{"title":"Pulse propagation in materials with both electric and magnetic responses: Unlimited bandwidth and only one approximation","authors":"P. Kinsler","doi":"10.1109/CLEOPR.2009.5292093","DOIUrl":"https://doi.org/10.1109/CLEOPR.2009.5292093","url":null,"abstract":"I show how only a single assumption is necessary when deriving a general uni-directional first-order pulse propagation equation without bandwidth constraints. It reduces easily to most existing propagation models, without requiring poorly controlled approximations.","PeriodicalId":6452,"journal":{"name":"2009 Conference on Lasers & Electro Optics & The Pacific Rim Conference on Lasers and Electro-Optics","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2009-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78119075","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2009-10-30DOI: 10.1109/CLEOPR.2009.5292633
Yi-Shen Xu, Ji-Hua Gu, Zhi Tao
A two-dimensional grating for the flexible solar cells is proposed. The transmission characteristics of the microstructure were investigated with rigorous coupled-wave analysis and the results indicate that almost 100% optical absorption could be achieved with the optimized gratings.
{"title":"Transmission characteristics of a two-dimensional grating for flexible solar cells","authors":"Yi-Shen Xu, Ji-Hua Gu, Zhi Tao","doi":"10.1109/CLEOPR.2009.5292633","DOIUrl":"https://doi.org/10.1109/CLEOPR.2009.5292633","url":null,"abstract":"A two-dimensional grating for the flexible solar cells is proposed. The transmission characteristics of the microstructure were investigated with rigorous coupled-wave analysis and the results indicate that almost 100% optical absorption could be achieved with the optimized gratings.","PeriodicalId":6452,"journal":{"name":"2009 Conference on Lasers & Electro Optics & The Pacific Rim Conference on Lasers and Electro-Optics","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2009-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81728946","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2009-10-30DOI: 10.1109/CLEOPR.2009.5292221
L. Ding, Qingli Zhang, Wenlong Zhou, Wenpeng Liu, S. Yin
Single crystal of M phase Yb:YTaO4 was grown by the Czochralski method. Large emission cross-section (1.05×10−20cm2), wide FWHM of absorption and emission, and long lifetime (0.74ms), indicate that Yb:YTaO4 is very promising laser crystal used in all solid state ultra-short laser.
{"title":"Crystal growth and optical properties of Yb:YTaO4","authors":"L. Ding, Qingli Zhang, Wenlong Zhou, Wenpeng Liu, S. Yin","doi":"10.1109/CLEOPR.2009.5292221","DOIUrl":"https://doi.org/10.1109/CLEOPR.2009.5292221","url":null,"abstract":"Single crystal of M phase Yb:YTaO<inf>4</inf> was grown by the Czochralski method. Large emission cross-section (1.05×10<sup>−20</sup>cm<sup>2</sup>), wide FWHM of absorption and emission, and long lifetime (0.74ms), indicate that Yb:YTaO<inf>4</inf> is very promising laser crystal used in all solid state ultra-short laser.","PeriodicalId":6452,"journal":{"name":"2009 Conference on Lasers & Electro Optics & The Pacific Rim Conference on Lasers and Electro-Optics","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2009-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81928567","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2009-10-30DOI: 10.1109/CLEOPR.2009.5292487
J. Bai
This paper presents a generalized modeling scheme for quantum-cascade structures with nonlinear effects up to the third-order. The linear and nonlinear performance evaluated from this model agrees well with published experimental results.
{"title":"A generalized modeling strategy for quantum-cascade structures with enhanced optical nonlinearities","authors":"J. Bai","doi":"10.1109/CLEOPR.2009.5292487","DOIUrl":"https://doi.org/10.1109/CLEOPR.2009.5292487","url":null,"abstract":"This paper presents a generalized modeling scheme for quantum-cascade structures with nonlinear effects up to the third-order. The linear and nonlinear performance evaluated from this model agrees well with published experimental results.","PeriodicalId":6452,"journal":{"name":"2009 Conference on Lasers & Electro Optics & The Pacific Rim Conference on Lasers and Electro-Optics","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2009-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84387593","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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