2011 Conference on Lasers and Electro-Optics Europe and 12th European Quantum Electronics Conference (CLEO EUROPE/EQEC)最新文献_第7页

PCF infrared continuum for multiwavelength two photon microscopy 用于多波长双光子显微镜的PCF红外连续体

2011 Conference on Lasers and Electro-Optics Europe and 12th European Quantum Electronics Conference (CLEO EUROPE/EQEC) Pub Date : 2011-05-22 DOI: 10.1109/CLEOE.2011.5942745

C. de Mauro, D. Alfieri, M. Arrigoni, D. Armstrong, F. Pavone

{"title":"PCF infrared continuum for multiwavelength two photon microscopy","authors":"C. de Mauro, D. Alfieri, M. Arrigoni, D. Armstrong, F. Pavone","doi":"10.1109/CLEOE.2011.5942745","DOIUrl":"https://doi.org/10.1109/CLEOE.2011.5942745","url":null,"abstract":"Thanks to the non linearity arising when femtosecond pulses are coupled into Photonic Crystal Fibers (PCFs), continuum spectra can be generated starting from single wavelength lasers. Multiphoton microscopy [1], fluorescence lifetime imaging [2], stimulated emission depletion microscopy [3], and optical coherence tomography [4] have been previously realized using such kind of excitation source, covering most of the state-of-the-art biological imaging techniques. Usually the properties of PCFs in terms of anomalous dispersion and high non linearity are exploited to produce the greater spectral broadening. We choose instead to pump a PCF with a selected dispersion profile in the normal dispersion region. This approach results in effects: reduction of non linearity, flat spectrum at the output and reduced amplitude noise in the different spectral bands generated [5]. We characterize the imaging performances of the system mainly in two ways. First of all by measuring the Point Spread Function (PSF) using sub-resolution fluorescent beads: sub micron radial resolution and micron optical sectioning is achieved in the whole spectrum. Most important, we compared the images obtained with a 30nm wide band selected from the continuum around 780nm with the ones using a single wavelength 785nm source (see Fig.1): Signal to Noise Ratio (SNR) and image quality are comparable, thus demonstrating the validity of our approach. The spectrum at the output of the fiber can then be arbitrarily shaped to select the desired excitation wavelength in the range from 700nm to 1000nm, where the two photon cross sections of the most common fluorophores are peaked.","PeriodicalId":6331,"journal":{"name":"2011 Conference on Lasers and Electro-Optics Europe and 12th European Quantum Electronics Conference (CLEO EUROPE/EQEC)","volume":"1 1","pages":"1-1"},"PeriodicalIF":0.0,"publicationDate":"2011-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76337980","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}

引用次数: 0

Optical properties of silver nanoparticle dispersed in polymer matrix 纳米银在聚合物基质中的光学性质

2011 Conference on Lasers and Electro-Optics Europe and 12th European Quantum Electronics Conference (CLEO EUROPE/EQEC) Pub Date : 2011-05-22 DOI: 10.1109/CLEOE.2011.5943602

A. Ziaeemehr, R. Poursalehi

引用次数: 0

Large-mode-area highly Yb-doped photodarkening-free Al2O3-P2O5-SiO2-Based fiber 大模面积高掺镱无光变暗al2o3 - p2o5 - sio2基光纤

2011 Conference on Lasers and Electro-Optics Europe and 12th European Quantum Electronics Conference (CLEO EUROPE/EQEC) Pub Date : 2011-05-22 DOI: 10.1109/CLEOE.2011.5943202

M. Likhachev, S. Aleshkina, A. V. Shubin, M. Bubnov, E. Dianov, D. Lipatov, A. Guryanov

{"title":"Large-mode-area highly Yb-doped photodarkening-free Al2O3-P2O5-SiO2-Based fiber","authors":"M. Likhachev, S. Aleshkina, A. V. Shubin, M. Bubnov, E. Dianov, D. Lipatov, A. Guryanov","doi":"10.1109/CLEOE.2011.5943202","DOIUrl":"https://doi.org/10.1109/CLEOE.2011.5943202","url":null,"abstract":"Large-mode area (LMA) Yb-doped fibers are routinely used in high-power CW and pulsed fiber lasers and amplifiers. Solubility of Yb<sup>3+</sup> ions in pure silica glass is rather small; therefore co-doping with Al<inf>2</inf>O<inf>3</inf> is required to suppress clustering. Single-mode operation in LMA fibers (core diameter ∼ 20 µm) is possible, when the refractive index difference between the core and the cladding (Δn) is about 0.002 or less. Both Al<inf>2</inf>O<inf>3</inf> and Yb<inf>2</inf>O<inf>3</inf> have a relatively high molar refractivity (∼0.0025/mol.% and 0.001/wt.%, respectively), and therefore only a small Al<inf>2</inf>O<inf>3</inf> concentration can be incorporated into a highly Yb-doped LMA fiber. Clustering of Yb<sup>3+</sup> ions results in photodarkening (PD) - degradation of the laser properties with time due to a grey loss increase. Utilization of the phosphorosilicate glass matrix allows one to suppress PD almost completely (the grey loss due to PD is 10–100 times smaller in comparison with that in the aluminosilicate fiber) [1], but a typical Δn in such fibers is about 0.005–0.015.","PeriodicalId":6331,"journal":{"name":"2011 Conference on Lasers and Electro-Optics Europe and 12th European Quantum Electronics Conference (CLEO EUROPE/EQEC)","volume":"76 1","pages":"1-1"},"PeriodicalIF":0.0,"publicationDate":"2011-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76084481","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}

引用次数: 25

Spectroscopy of a single molecule using single photons emitted by another molecule 光谱学利用由另一分子发射的单个光子对单个分子进行的光谱学

2011 Conference on Lasers and Electro-Optics Europe and 12th European Quantum Electronics Conference (CLEO EUROPE/EQEC) Pub Date : 2011-05-22 DOI: 10.1109/CLEOE.2011.5943371

Y. Rezus, S. Walt, G. Zumofen, A. Renn, S. Gotzinger, V. Sandoghdar

{"title":"Spectroscopy of a single molecule using single photons emitted by another molecule","authors":"Y. Rezus, S. Walt, G. Zumofen, A. Renn, S. Gotzinger, V. Sandoghdar","doi":"10.1109/CLEOE.2011.5943371","DOIUrl":"https://doi.org/10.1109/CLEOE.2011.5943371","url":null,"abstract":"Any study of the light-matter interaction involves photons and matter particles such as atoms. However, the great majority of such experiments have been performed using large ensembles of matter and light particles. Recent advances in quantum optics and nano-optics have made it possible to detect, examine, and manipulate single atoms, ions, or molecules using laser light. Furthermore, single atoms, ions and molecules have become established as sources of single photons by many groups. Nevertheless, experiments on the interaction of single photons with single atoms have been few and restricted to the strong coupling regime in high-finesse cavities. The fundamental challenge in such experiments is to confine light efficiently enough so that the electric field associated with a single photon can lead to atomic excitation. Our recent theoretical and experimental works have indicated that this should be possible using a tightly-focused laser beam [1, 2]. In this presentation, we report for the first time on the spectroscopy of single molecules using a freely-propagating stream of single photons produced by another single molecule placed at a large distance, as sketched in Figure 1a [3].","PeriodicalId":6331,"journal":{"name":"2011 Conference on Lasers and Electro-Optics Europe and 12th European Quantum Electronics Conference (CLEO EUROPE/EQEC)","volume":"70 1","pages":"1-1"},"PeriodicalIF":0.0,"publicationDate":"2011-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86925836","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}

引用次数: 0

High efficient XPW generation for high contrast high energy ultrashort laser pulses 高对比度高能超短激光脉冲的高效XPW生成

2011 Conference on Lasers and Electro-Optics Europe and 12th European Quantum Electronics Conference (CLEO EUROPE/EQEC) Pub Date : 2011-05-22 DOI: 10.1109/CLEOE.2011.5942812

L. P. Ramirez, D. Papadopoulos, A. Pellegrina, P. Monot, A. Ricci, A. Jullien, X. Chen, J. Rousseau, R. López-Martens, P. Georges, F. Druon

引用次数: 0

Frequency and phase locking in a cavity soliton laser 腔孤子激光器的频率和相位锁定

2011 Conference on Lasers and Electro-Optics Europe and 12th European Quantum Electronics Conference (CLEO EUROPE/EQEC) Pub Date : 2011-05-22 DOI: 10.1109/CLEOE.2011.5943561

C. McIntyre, G. Oppo, N. Radwell, Y. Noblet, T. Ackemann, W. Firth, P. Paulau

引用次数: 0

Optical encryption with compressive ghost imaging 具有压缩鬼影成像的光学加密

2011 Conference on Lasers and Electro-Optics Europe and 12th European Quantum Electronics Conference (CLEO EUROPE/EQEC) Pub Date : 2011-05-22 DOI: 10.1109/CLEOE.2011.5942894

Vicente Durán, P. Clemente, V. Torres‐Company, E. Tajahuerce, J. Lancis, P. Andrés

引用次数: 12

Giant gain in a rare-earth-ion-doped waveguide 稀土离子掺杂波导的巨大增益

2011 Conference on Lasers and Electro-Optics Europe and 12th European Quantum Electronics Conference (CLEO EUROPE/EQEC) Pub Date : 2011-05-22 DOI: 10.1109/CLEOE.2011.5943145

D. Geskus, S. Aravazhi, S. García-Blanco, M. Pollnau

引用次数: 1

CW and modelocked operation of an Yb:(Sc,Y,Lu)2O3 thin-disk laser Yb:(Sc,Y,Lu)2O3薄板激光器的连续波和锁模工作

2011 Conference on Lasers and Electro-Optics Europe and 12th European Quantum Electronics Conference (CLEO EUROPE/EQEC) Pub Date : 2011-05-22 DOI: 10.1109/CLEOE.2011.5942502

C. Baer, C. Saraceno, O. Heckl, M. Golling, T. Sudmeyer, K. Beil, C. Krãnkel, K. Petermann, G. Huber, U. Keller

引用次数: 4

Effect of amplitude noise on multi-level phase regeneration 振幅噪声对多级相位再生的影响

2011 Conference on Lasers and Electro-Optics Europe and 12th European Quantum Electronics Conference (CLEO EUROPE/EQEC) Pub Date : 2011-05-22 DOI: 10.1109/CLEOE.2011.5942978

M. Lenz, G. Onishchukov, B. Schmauss, G. Leuchs

引用次数: 1