最新ニュース

September 6, 2017

チェコ共和国 マサリク大学でNanoWizard® AFM と ForceRobot®モジュールを使用し、 生体分子と細胞の相互作用について研究を進めているユーザーをご紹介いたします。

August 2, 2017

スコットランドグラスゴー大学でのNanoWizard AFMとCellHesionモジュールを使用した、細胞の環境に対する応答に関する研究についてご紹介します。

May 31, 2017

JPKはAbberior Instruments社と協力し、ベルリン本社内に新たにデモンストレーション施設を開設したことをお知らせします。 NanoWizard®AFM  … 

April 5, 2017

ローマカトリック大学では、JPKのNanoWizard® AFM と CellHesion®システムを使用し、細胞の機械的刺激に対する検知と応答について研究しています。

March 7, 2017

イギリスシェフィールド大学ではJPKのNanoWizard®AFMシステムが、分子スケールのソフトマターや生体システムの理解を深めるために使用されています。

次回イベント

9月4日~9日

ESB 2017 in Athens, Greece

Press releases

2017-02-08 | ISMO - オルセー分子科学研究所、分子科学グループによるSTMを応用した表面プラズモン研究についてご報告いたします。

The Molecular NanoScience Group at ISMO, users of the JPK NanoWizard®: Gérald Dujardin (emeritus researcher); Shuiyan Cao (Ph.D. student); Elizabeth Boer-Duchemin (Associate professor); Eric Le Moal (CNRS researcher); Delphine Pommier (Masters student).

JPK Instruments, a world-leading manufacturer of nanoanalytic instrumentation for research in life sciences and soft matter, reports on how STM is being used to study surface plasmons in the Molecular Nanoscience Group at ISMO – Institut des Sciences Moléculaires d’Orsay – CNRS and the Université Paris-Sud.

One of the research goals of the Molecular Nanoscience Group at ISMO is to work towards circuits and devices in which surface plasmons (not electrons or photons) are used to transfer and manipulate information. However, why develop plasmonics when there are already solutions using electronics and photonics? Electronics has been extremely successful in the area of miniaturization, leading to computers which now fit in the palm of your hand. However, electronic devices are fundamentally limited in speed by the generation of heat. On the other hand, the use of photonics has successfully enabled fast data downloads from the Internet since optical fiber connections offer high bandwidth. Optical devices are also limited, this time in terms of size, due to the diffraction limit of light. The goal of this research group is the development of plasmonics which combines the advantages of electronics and photonics, thus producing miniaturized, high bandwidth circuits and devices which use surface plasmons. To bring this to a commercial reality, a local, low energy electrical source of surface plasmon polaritons is required.

For this research program to develop, group leader Dr Elizabeth Boer-Duchemin takes up the story. “We propose to use an electrically biased tunnel junction as this local electrical plasmon source, and as a prototype, we consider the tunnel junction formed between the tip of a scanning tunneling microscope and a metallic sample. We chose to work with JPK for a number of reasons. First and foremost, the fact that the JPK STM is easily mounted on an inverted optical microscope (for surface plasmon detection) is essential for us. The design of the tip-assisted-optics (TAO) stage makes it easy to move both tip and sample independently. In our experiments, we use the STM to excite surface plasmons. These then radiate as photons which is the emitted light that we finally detect. I would also like to thank the engineering team at JPK who were extremely helpful in the project. This is a very unusual application and they played a vital part in the writing of specialised scripts to enable the work.”

The Group has been very active in publishing papers on this work. In 2016, these included publications such as Nanotechnology1 and Optics Express2.



 

 

 

STM plasmonic crystal:
Schematic of the experiment and STM image of sample – a gold nanoparticle array (article Optics Express, 4, 26186 (2016))

 

References
1 The mechanism of light emission from a scanning tunnelling microscope operating in air
B. Rogez, S. Cao, G. Dujardin, G. Comtet, E. Le Moal, A. Mayne and E. Boer-Duchemin, Nanotechnology, 27, 465201 (2016) .
2 Surface plasmon polariton beams from an electrically excited plasmonic crystal
D Canneson, E Le Moal, S Cao, X Quelin, H Dallaporta, G Dujardin & Elizabeth Boer-Duchemin, Optics Express, 4, 26186 (2016)

For more details about JPK’s STM and AFM systems and their applications for the materials & nano sciences, please contact JPK on +49 30726243 500. Alternatively, please visit the web site: www.jpk.com or see more on Facebook: www.jpk.com/facebook and on You Tube: http://www.youtube.com/jpkinstruments.

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