Split light wave switches nano-enhancers of light on and off



A field of metal nanopyramids enhances light from the surrounding molecules, but can also disrupt the energy supply of those molecules by absorbing the incoming light. Mohammad Ramezani and his colleagues discovered how they can use interference to modulate the nanoantennae to optimise the amount of light absorbed and minimise the amount of light wasted. Credit: Giuseppe Pirruccio, Mohammad Ramezani, Said Rahimzadeh-Kalaleh Rodriguez.

In collaboration with Philips Lighting, researchers from the FOM institutes AMOLF and DIFFER have found a way to switch the antenna effect of metal nanoparticles on and off. Nanoantennae are sensitive receivers and enhancers of light with applications in medical sensors, lighting and improved solar cells.

In Physical Review Letters, the research group of Jaime Gomez-Rivas describes how they coherently controlled nanoantennae to optimally receive and minimise the light wasted by using accurately phased light waves.


Metal nanoparticles, billionths of metres in size, respond particularly strongly to light. The researchers specialise in] nanophotonics, where such surprising effects are possible. The electrons on the surface move along with light in the surroundings. Therefore, can act as nanoantennae and receive and transmit light.

Nanoparticles enhance light but also waste it

In the PRL publication, the team describes how a lattice of metal pyramids, tens of nanometres in size, influences the light received by the surrounding fluorescent molecules. Fluorescent molecules absorb light from one wavelength and emit light at another wavelength. They are used to develop white LED lights, for example.

If the emission of the molecules is enhanced by metal nanoantennae, they emit a higher intensity of light in certain directions. At the same time, such nanoantennae are so sensitive that they also absorb the light that should provide the fluorescent molecules with energy. Consequently up to 50 percent of the incoming energy is lost.

SEM image
SEM image of the nanopyramids. The white bar indicates the scale of this image: 300 nanometers. Credits: Giuseppe Pirruccio, Mohammad Ramezani, Said Rahimzadeh-Kalaleh Rodriguez.


For a long time, it was thought that the antenna effect of nanoparticles was an intrinsic characteristic that could not be switched on or off. Ph.D. researcher Giuseppe Pirruccio (AMOLF and UNAM) nevertheless managed to modulate the antennae effect by splitting up the incoming light waves. If the crest of one light wave coincides with the trough of the other, the nanoantennae stop functioning while the fluorescent molecules in their vicinity can still acquire energy. “The briefly need the time to convert the incoming light and emit this,” says fellow researcher Mohammad Ramezani. “Via this setup you can switch off the disruptive nanoantennae effect while you supply energy without switching off the mechanism that enhances the light emitted.”

Explore further: New mechanism discovered to convert light into electricity: The ‘plasmoelectric effect’

More information: Coherent control of the optical absorption in a plasmonic lattice coupled to a luminescent layer, Giuseppe Pirruccio, Mohammad Ramezani, Said Rahimzadeh-Kalaleh Rodriguez et al, Phys. Rev. Lett. 116, 103002. arxiv.org/abs/1601.04611

Read more at: Split light wave switches nano-enhancers of light on and off





33 thoughts on “Split light wave switches nano-enhancers of light on and off

  1. Kerry Beck says:

    I came to your Split light wave switches nano-enhancers of light on and off – ENNA page and noticed you could have a lot more traffic. I have found that the key to running a website is making sure the visitors you are getting are interested in your subject matter. We can send you targeted traffic and we let you try it for free. Get over 1,000 targeted visitors per day to your website. Start your free trial: http://url.euqueroserummacaco.com/3ewon Unsubscribe here: http://stpicks.com/2ruse

  2. Thanks for all of your efforts on this web site. Gloria enjoys setting aside time for research and it’s really obvious why. We all hear all regarding the lively ways you create very useful things on this web blog and even encourage response from other people on that area of interest while our favorite girl has always been starting to learn a lot of things. Enjoy the remaining portion of the year. You’re the one carrying out a pretty cool job.

  3. yeezy shoes says:

    very good put up, i certainly love this web site, keep on it

  4. My spouse and i ended up being satisfied when Peter could deal with his basic research because of the ideas he made from your site. It’s not at all simplistic to simply always be making a gift of secrets and techniques that some others have been selling. And now we discover we have the writer to appreciate because of that. All the illustrations you made, the straightforward site menu, the friendships you help foster – it’s mostly amazing, and it’s really making our son in addition to the family believe that that content is excellent, which is rather pressing. Thanks for all the pieces!

  5. I intended to write you this little bit of remark to give many thanks as before about the extraordinary information you have discussed at this time. It has been really shockingly generous with you to offer publicly what exactly some people might have offered for sale for an e book to earn some dough on their own, certainly since you could possibly have tried it if you desired. Those secrets as well worked as a fantastic way to fully grasp that other people have a similar fervor just as my own to know the truth a great deal more around this matter. Certainly there are millions of more enjoyable situations in the future for people who examine your website.

  6. adidas eqt says:

    Thank you a lot for giving everyone remarkably wonderful possiblity to read critical reviews from this site. It’s always very useful plus stuffed with amusement for me personally and my office peers to visit your blog really thrice every week to study the newest guidance you have. And of course, I’m just always pleased with your splendid ideas served by you. Some 1 tips in this posting are without a doubt the most efficient we have ever had.

  7. I want to show appreciation to the writer for bailing me out of such a matter. Because of scouting throughout the world wide web and seeing concepts which are not productive, I was thinking my life was done. Living without the presence of approaches to the problems you’ve fixed all through your entire review is a crucial case, as well as the kind which could have in a negative way damaged my entire career if I had not encountered the website. Your primary natural talent and kindness in controlling the whole thing was priceless. I don’t know what I would’ve done if I hadn’t come upon such a subject like this. It’s possible to at this time look ahead to my future. Thanks for your time so much for this professional and effective guide. I won’t think twice to suggest your blog to anybody who will need counselling about this area.

  8. adidas yeezy says:

    My wife and i felt quite thankful when Jordan managed to do his reports through the entire ideas he grabbed in your site. It’s not at all simplistic to simply be handing out instructions which usually the others might have been selling. And now we fully grasp we have got the blog owner to give thanks to because of that. The illustrations you made, the straightforward blog navigation, the relationships you can aid to foster – it is most excellent, and it is helping our son and us do think this subject is awesome, which is certainly particularly indispensable. Many thanks for the whole thing!

  9. balenciaga says:

    I not to mention my friends appeared to be viewing the best techniques from the blog and then then got a terrible suspicion I never expressed respect to you for them. All the boys were definitely thrilled to read through all of them and have undoubtedly been making the most of those things. Many thanks for genuinely considerably kind and then for figuring out such helpful things most people are really desperate to know about. My personal sincere apologies for not expressing appreciation to earlier.

  10. You made some respectable points there. I looked on the web for the issue and found most individuals will go together with with your website.

  11. hermes belt says:

    I wish to show some thanks to the writer for rescuing me from such a setting. Just after surfing around through the the web and meeting ways that were not pleasant, I believed my entire life was over. Living without the presence of strategies to the difficulties you have sorted out all through the article content is a critical case, and those which may have adversely damaged my entire career if I hadn’t discovered the blog. Your main mastery and kindness in dealing with all the details was valuable. I don’t know what I would’ve done if I hadn’t discovered such a step like this. I’m able to at this time look forward to my future. Thank you very much for your high quality and amazing guide. I won’t be reluctant to recommend your web page to anyone who needs to have guidance on this area.

  12. kd shoes says:

    I wanted to write you that bit of note so as to give thanks as before for your personal awesome suggestions you have documented in this article. This is really remarkably generous of people like you to present unhampered just what a number of us could possibly have supplied as an e-book in order to make some money for their own end, chiefly considering that you might well have tried it if you considered necessary. These inspiring ideas likewise served as the great way to comprehend the rest have the same eagerness like mine to know the truth great deal more on the subject of this condition. I believe there are lots of more pleasant periods in the future for many who look into your website.

  13. adidas nmd says:

    I needed to compose you this very small observation just to give thanks over again for these magnificent advice you’ve shown in this case. This has been quite strangely open-handed of you in giving unreservedly what exactly a number of us would’ve made available as an ebook to earn some profit for themselves, and in particular considering that you might have done it in the event you considered necessary. These tips also worked like the great way to know that the rest have a similar dream the same as mine to see significantly more with reference to this condition. I’m certain there are several more pleasurable instances up front for people who browse through your blog.

  14. Thank you a lot for providing individuals with remarkably superb possiblity to read articles and blog posts from this blog. It is always so pleasant and also full of a great time for me and my office peers to search your blog on the least three times in one week to see the newest secrets you have got. And of course, I am just certainly fascinated for the superb creative concepts served by you. Certain 2 ideas in this posting are undoubtedly the most efficient we’ve ever had.

  15. I simply had to appreciate you again. I do not know the things that I might have worked on in the absence of the entire tips discussed by you regarding this area of interest. Certainly was a real frustrating concern in my opinion, nevertheless taking note of your professional tactic you dealt with it forced me to leap for delight. I will be happy for the work as well as expect you realize what an amazing job you were putting in instructing the rest via your webpage. Most likely you’ve never got to know all of us.

  16. I’m writing to make you know what a fabulous discovery my wife’s girl undergone viewing your site. She mastered lots of details, most notably what it is like to have an incredible teaching spirit to get most people really easily thoroughly grasp specified very confusing subject areas. You really exceeded our own desires. Thanks for supplying the practical, trustworthy, revealing and unique tips about your topic to Tanya.

  17. I’m also commenting to make you be aware of of the fantastic discovery my wife’s princess gained reading your web site. She realized too many details, most notably how it is like to have a great teaching spirit to get the mediocre ones completely fully grasp specified extremely tough issues. You actually exceeded readers’ desires. I appreciate you for rendering such priceless, trustworthy, informative as well as fun guidance on the topic to Janet.

  18. I want to show some thanks to you for bailing me out of this particular incident. Because of surfing through the world wide web and finding techniques which are not beneficial, I figured my entire life was done. Living without the solutions to the issues you have resolved by means of this website is a critical case, as well as the ones that could have negatively affected my entire career if I had not discovered your blog. Your primary understanding and kindness in handling all the stuff was vital. I don’t know what I would have done if I hadn’t come across such a step like this. I’m able to at this point relish my future. Thanks for your time very much for the skilled and sensible guide. I won’t be reluctant to suggest the website to anyone who wants and needs guidelines about this area.

  19. I am just writing to make you be aware of of the beneficial encounter my cousin’s girl obtained checking your web site. She figured out several issues, which include what it’s like to have an awesome coaching character to have many people very easily fully understand some specialized matters. You truly surpassed my expectations. Thank you for distributing such valuable, trustworthy, edifying and cool guidance on your topic to Kate.

  20. yeezys says:

    I needed to write you a very small note just to give many thanks again for all the great strategies you have provided on this site. It’s quite tremendously generous with you giving unhampered what numerous people would’ve advertised as an ebook in order to make some dough on their own, even more so now that you could possibly have tried it in the event you wanted. These points in addition acted like a great way to be aware that someone else have a similar passion really like my very own to see lots more in regard to this matter. I am sure there are a lot more fun instances ahead for folks who read carefully your blog post.

  21. I enjoy you because of each of your hard work on this web site. My mother really likes getting into internet research and it’s really obvious why. We all hear all regarding the compelling mode you offer important guidance via your web site and even improve response from visitors on that point while our favorite princess is actually understanding a lot. Take pleasure in the rest of the new year. You are doing a glorious job.

  22. burberry says:

    I and my pals ended up going through the best secrets found on your website then before long got a horrible suspicion I had not thanked the blog owner for them. All of the women were glad to learn them and already have truly been having fun with those things. We appreciate you truly being simply helpful and then for figuring out this sort of amazing resources millions of individuals are really desperate to know about. Our own honest regret for not expressing gratitude to you earlier.

  23. I would like to show my passion for your kind-heartedness giving support to men who need help with this important matter. Your special commitment to passing the solution around had been unbelievably important and have specifically made professionals like me to realize their targets. Your entire helpful publication means a lot to me and even more to my fellow workers. Thank you; from everyone of us.

  24. Thanks for all your labor on this blog. Gloria delights in participating in internet research and it is simple to grasp why. A number of us know all of the compelling manner you present rewarding things by means of this web blog and therefore attract response from some other people on the area of interest and our favorite daughter is without question studying a lot. Have fun with the rest of the new year. Your conducting a fabulous job.

  25. I’m commenting to let you understand of the really good discovery our princess undergone checking yuor web blog. She came to understand such a lot of details, most notably what it is like to possess an amazing helping character to let many others just know just exactly certain extremely tough issues. You truly surpassed our expectations. I appreciate you for imparting such important, dependable, informative and fun tips on your topic to Mary.

  26. I really wanted to type a simple note so as to thank you for all the nice information you are sharing here. My considerable internet search has now been honored with brilliant facts to exchange with my best friends. I ‘d claim that we visitors are truly fortunate to be in a remarkable community with so many outstanding individuals with insightful solutions. I feel pretty blessed to have discovered your entire website and look forward to some more awesome moments reading here. Thanks a lot again for all the details.

  27. curry 5 says:

    I precisely wished to say thanks again. I’m not certain the things that I could possibly have sorted out in the absence of the type of tricks contributed by you concerning my field. Previously it was a real horrifying scenario for me personally, but discovering the very specialised strategy you handled it made me to cry for delight. Now i’m happier for your assistance and thus sincerely hope you really know what a powerful job you happen to be carrying out instructing other individuals using a site. I’m certain you haven’t come across any of us.

  28. jordan 6 says:

    I wanted to compose a simple message to express gratitude to you for all of the fantastic points you are posting at this site. My time-consuming internet search has finally been rewarded with good ideas to share with my visitors. I would repeat that we readers are definitely fortunate to exist in a superb community with very many special professionals with good plans. I feel really privileged to have seen your web site and look forward to tons of more fabulous moments reading here. Thank you again for everything.

  29. Thank you a lot for giving everyone remarkably marvellous opportunity to read from here. It is often very lovely and also full of amusement for me and my office peers to search your web site more than thrice every week to find out the fresh guidance you have got. And indeed, I am just certainly fulfilled for the surprising strategies you serve. Some 2 areas in this article are undeniably the most suitable I have had.

  30. nfl jerseys says:

    My spouse and i got absolutely delighted that Chris managed to finish off his basic research through the entire ideas he got in your web page. It is now and again perplexing just to choose to be giving freely techniques which often men and women have been making money from. And now we fully grasp we’ve got the website owner to appreciate for this. Most of the explanations you made, the straightforward site menu, the relationships you can assist to instill – it is many awesome, and it’s leading our son in addition to us know that the article is brilliant, which is truly fundamental. Many thanks for all the pieces!

  31. nike air max says:

    Thanks for your entire work on this web site. My daughter really likes engaging in internet research and it is easy to see why. My spouse and i hear all regarding the lively mode you provide very helpful secrets through your web blog and cause participation from other people on this point so our own child is truly discovering a lot of things. Take pleasure in the remaining portion of the new year. You are always carrying out a great job.

  32. I wanted to compose you this little bit of observation in order to say thanks a lot once again for these gorgeous knowledge you have contributed above. This has been certainly open-handed with you to present openly all that a lot of people could possibly have distributed as an ebook to make some dough for themselves, chiefly considering that you might have tried it in case you desired. The thoughts also served to be the easy way to comprehend other people have similar dreams just as my own to find out great deal more with reference to this condition. Certainly there are a lot more enjoyable situations ahead for folks who go through your site.

  33. air max 270 says:

    I must express my gratitude for your kind-heartedness for people that actually need assistance with this area. Your real commitment to passing the message all over had been extremely interesting and have continually enabled associates just like me to get to their pursuits. Your amazing warm and helpful tutorial means a lot a person like me and substantially more to my peers. With thanks; from all of us.

Leave a Reply

Your email address will not be published. Required fields are marked *

CAPTCHA ImageChange Image