Pub Date : 2010-02-25DOI: 10.1109/PHOTWTM.2010.5421974
R. Dietz, H. Roehle, H. Hensel, J. Bottcher, H. Kunzel, D. Stanze, M. Schlak, M. Schell, B. Sartorius
Terahertz antennas for 1.5 μm operation are improved by mesa-etching of the InGaAs/InAlAs photoconductive layers. The performance in terms of dark current, signal amplitude and bandwidth has been improved significantly.
{"title":"Improving photoconductive THz antennas for 1.5 µm operation","authors":"R. Dietz, H. Roehle, H. Hensel, J. Bottcher, H. Kunzel, D. Stanze, M. Schlak, M. Schell, B. Sartorius","doi":"10.1109/PHOTWTM.2010.5421974","DOIUrl":"https://doi.org/10.1109/PHOTWTM.2010.5421974","url":null,"abstract":"Terahertz antennas for 1.5 μm operation are improved by mesa-etching of the InGaAs/InAlAs photoconductive layers. The performance in terms of dark current, signal amplitude and bandwidth has been improved significantly.","PeriodicalId":367324,"journal":{"name":"2010 IEEE Photonics Society Winter Topicals Meeting Series (WTM)","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121890140","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 : 2010-02-25DOI: 10.1109/PHOTWTM.2010.5421976
S. Saha, Yong Ma, J. Grant, A. Khalid, D. Cumming
We have developed anisotropically etched artificial dielectric quarter wave plates (QWPs) for use at 1.5 and 2.5 Terahertz. A SU8 anti-reflection coating is used to further improve the transmission coefficient by up to 12%.
{"title":"Fabrication of silicon quarter wave plate at Terahertz frequency","authors":"S. Saha, Yong Ma, J. Grant, A. Khalid, D. Cumming","doi":"10.1109/PHOTWTM.2010.5421976","DOIUrl":"https://doi.org/10.1109/PHOTWTM.2010.5421976","url":null,"abstract":"We have developed anisotropically etched artificial dielectric quarter wave plates (QWPs) for use at 1.5 and 2.5 Terahertz. A SU8 anti-reflection coating is used to further improve the transmission coefficient by up to 12%.","PeriodicalId":367324,"journal":{"name":"2010 IEEE Photonics Society Winter Topicals Meeting Series (WTM)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115564485","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 : 2010-02-25DOI: 10.1109/PHOTWTM.2010.5421926
D. Bimberg, E. Stock
Efficient generation of single polarized photons or entangled photon pairs will be based on semiconductor quantum dots (QDs). Using submicron oxide current apertures, we were able to realize single InAs/GaAs QD based LEDs.
{"title":"Single photon sources based on semiconductor quantum dots","authors":"D. Bimberg, E. Stock","doi":"10.1109/PHOTWTM.2010.5421926","DOIUrl":"https://doi.org/10.1109/PHOTWTM.2010.5421926","url":null,"abstract":"Efficient generation of single polarized photons or entangled photon pairs will be based on semiconductor quantum dots (QDs). Using submicron oxide current apertures, we were able to realize single InAs/GaAs QD based LEDs.","PeriodicalId":367324,"journal":{"name":"2010 IEEE Photonics Society Winter Topicals Meeting Series (WTM)","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125178198","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 : 2010-02-25DOI: 10.1109/PHOTWTM.2010.5421977
N. Vieweg, Rafal Wilk, M. Shakfa, J. Kloc, M. Scheller, C. Jansen, N. Krumbholz, Martin Mikulics, Martin Koch
We investigate the THz properties of nematic liquid crystals as a function of temperature. In particular we focus on the refractive index the absorption and the birefringence. From the measured data, molecular properties (polarizability and S parameter) are deduced. We discuss the impact of the molecular chain length on the polarizability.
{"title":"Terahertz Investigation of Liquid Crystals from the CB Family","authors":"N. Vieweg, Rafal Wilk, M. Shakfa, J. Kloc, M. Scheller, C. Jansen, N. Krumbholz, Martin Mikulics, Martin Koch","doi":"10.1109/PHOTWTM.2010.5421977","DOIUrl":"https://doi.org/10.1109/PHOTWTM.2010.5421977","url":null,"abstract":"We investigate the THz properties of nematic liquid crystals as a function of temperature. In particular we focus on the refractive index the absorption and the birefringence. From the measured data, molecular properties (polarizability and S parameter) are deduced. We discuss the impact of the molecular chain length on the polarizability.","PeriodicalId":367324,"journal":{"name":"2010 IEEE Photonics Society Winter Topicals Meeting Series (WTM)","volume":"51 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116007679","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 : 2010-02-25DOI: 10.1109/PHOTWTM.2010.5421971
Z. Zhao, A. Schwagmann, F. Ospald, K. Klitzing, J. Smet, D. Driscoll, M. Hanson, Hong Lu, A. Gossard
ErAs:In0.53Ga0.47As superlattice THz emitters are fabricated and characterized at an excitation wavelength of 1.55 µm. Photocurrent-voltage characteristics, carrier lifetimes and bandwidth of the THz output are discussed as a function of the superlattice period.
{"title":"1.55 μm photoconductive THz emitters based on ErAs:In0.53Ga0.47As superlattices","authors":"Z. Zhao, A. Schwagmann, F. Ospald, K. Klitzing, J. Smet, D. Driscoll, M. Hanson, Hong Lu, A. Gossard","doi":"10.1109/PHOTWTM.2010.5421971","DOIUrl":"https://doi.org/10.1109/PHOTWTM.2010.5421971","url":null,"abstract":"ErAs:In0.53Ga0.47As superlattice THz emitters are fabricated and characterized at an excitation wavelength of 1.55 µm. Photocurrent-voltage characteristics, carrier lifetimes and bandwidth of the THz output are discussed as a function of the superlattice period.","PeriodicalId":367324,"journal":{"name":"2010 IEEE Photonics Society Winter Topicals Meeting Series (WTM)","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115370651","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 : 2010-02-25DOI: 10.1109/PHOTWTM.2010.5421995
R. Guo, Y. Gong, H. Minamide, Hiromasa Ito
Designing an automatic phase matching device for a surface emitted terahertz-wave (THz) parametric oscillator and a THz-wave detection unit using parametric up-conversion in MgO:LiNbO3, we realized a frequency-agile, monochromatic THz-wave generation and detection system.
{"title":"Developing a frequency-agile THz-wave generation and detection system for real-time THz-wave spectral imaging","authors":"R. Guo, Y. Gong, H. Minamide, Hiromasa Ito","doi":"10.1109/PHOTWTM.2010.5421995","DOIUrl":"https://doi.org/10.1109/PHOTWTM.2010.5421995","url":null,"abstract":"Designing an automatic phase matching device for a surface emitted terahertz-wave (THz) parametric oscillator and a THz-wave detection unit using parametric up-conversion in MgO:LiNbO3, we realized a frequency-agile, monochromatic THz-wave generation and detection system.","PeriodicalId":367324,"journal":{"name":"2010 IEEE Photonics Society Winter Topicals Meeting Series (WTM)","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129208210","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 : 2010-02-25DOI: 10.1109/PHOTWTM.2010.5421949
T. Luk, S. Xiong, B. Farfan, W. Chow, I. El-Kady, X. Miao, P. Resnick, M. Su, G. Subramania, M. Taha, C. Brinker
High Purcell spontaneous emission enhancement factor of 116 is achieved by integrating a self-assembled, close packed monolayer of colloidal PbS quantum dots with a L3-type silicon photonic crystal cavity.
{"title":"Strong Purcell enhancement of emission from close-packed colloidal quantum-dots in a photonic-lattice cavity","authors":"T. Luk, S. Xiong, B. Farfan, W. Chow, I. El-Kady, X. Miao, P. Resnick, M. Su, G. Subramania, M. Taha, C. Brinker","doi":"10.1109/PHOTWTM.2010.5421949","DOIUrl":"https://doi.org/10.1109/PHOTWTM.2010.5421949","url":null,"abstract":"High Purcell spontaneous emission enhancement factor of 116 is achieved by integrating a self-assembled, close packed monolayer of colloidal PbS quantum dots with a L3-type silicon photonic crystal cavity.","PeriodicalId":367324,"journal":{"name":"2010 IEEE Photonics Society Winter Topicals Meeting Series (WTM)","volume":"112 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124122473","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 : 2010-02-25DOI: 10.1109/PHOTWTM.2010.5421981
T. Bierhoff, J. Schrage, M. Halter, F. Betschon, J. Duis, W. Rietveld
A pluggable connector for board-level optical polymer waveguides has been developed by adaptation of standard MPXTM-Technology to flexible polymer waveguides. Its capability has been demonstrated by realizing an all optical board-backplane-board interconnection system.
{"title":"All optical pluggable board-backplane interconnection system based on an MPXTM-FlexTail connector solution","authors":"T. Bierhoff, J. Schrage, M. Halter, F. Betschon, J. Duis, W. Rietveld","doi":"10.1109/PHOTWTM.2010.5421981","DOIUrl":"https://doi.org/10.1109/PHOTWTM.2010.5421981","url":null,"abstract":"A pluggable connector for board-level optical polymer waveguides has been developed by adaptation of standard MPXTM-Technology to flexible polymer waveguides. Its capability has been demonstrated by realizing an all optical board-backplane-board interconnection system.","PeriodicalId":367324,"journal":{"name":"2010 IEEE Photonics Society Winter Topicals Meeting Series (WTM)","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130891466","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 : 2010-02-25DOI: 10.1109/PHOTWTM.2010.5421993
R. Maldonado-Basilio, S. Latkowski, F. Surre, P. Landais
Wave-mixing at 370-GHz in a SOA and FP semiconductor laser is investigated by using a FROG-system. A comparison of the optical time-fluctuations measured at their output stresses the importance of a resonant cavity in THz-signals generation from semiconductor optical devices.
{"title":"Wave-mixing analysis for THz-signals generation in dc-biased semiconductor optical devices at room temperature","authors":"R. Maldonado-Basilio, S. Latkowski, F. Surre, P. Landais","doi":"10.1109/PHOTWTM.2010.5421993","DOIUrl":"https://doi.org/10.1109/PHOTWTM.2010.5421993","url":null,"abstract":"Wave-mixing at 370-GHz in a SOA and FP semiconductor laser is investigated by using a FROG-system. A comparison of the optical time-fluctuations measured at their output stresses the importance of a resonant cavity in THz-signals generation from semiconductor optical devices.","PeriodicalId":367324,"journal":{"name":"2010 IEEE Photonics Society Winter Topicals Meeting Series (WTM)","volume":"124 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133660451","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 : 2010-02-25DOI: 10.1109/PHOTWTM.2010.5421921
A. Giannopoulos, C. Long, V. Verma, J. Coleman, K. Choquette
We discuss two approaches for current injected photonic crystal defect membrane emitters. A vertical pn junction using spatially selective gain is reported as well transverse pn junctions created using selective ion implantation.
{"title":"Approaches for electrical injection into photonic crystal nanocavities","authors":"A. Giannopoulos, C. Long, V. Verma, J. Coleman, K. Choquette","doi":"10.1109/PHOTWTM.2010.5421921","DOIUrl":"https://doi.org/10.1109/PHOTWTM.2010.5421921","url":null,"abstract":"We discuss two approaches for current injected photonic crystal defect membrane emitters. A vertical pn junction using spatially selective gain is reported as well transverse pn junctions created using selective ion implantation.","PeriodicalId":367324,"journal":{"name":"2010 IEEE Photonics Society Winter Topicals Meeting Series (WTM)","volume":"59 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134178052","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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