Ghost Polaritons: New Type of Infrared Polaritons Discovered

An international team has reported in Nature the first observation of ghost polaritons, which are a new form of surface waves carrying nanoscale light strongly coupled with material oscillations and featuring highly collimated propagation properties. The research team observed these phenomena over a common material – calcite – and showed how ghost polaritons can facilitate a superior control of infrared nano-light for sensing, signal processing, energy harvesting and other technologies.

In recent years, nanophotonics at infrared and terahertz frequencies has become important for highly sensitive, ultracompact and low-loss technologies for bio-molecular and chemical diagnosis, sensors, communications and other applications. Nanomaterial platforms that can facilitate enhanced light-matter interactions at these frequencies have become essential for these technologies. Recent work has been using low-dimensional van der Waals materials, such as graphene, hexagonal boron nitride and alpha-phase molybdenum trioxide (α-MoO3, Nature 2018), because of their highly exotic response to confined light at the nanoscale. However, these emerging nanomaterials require demanding nanofabrication techniques, hindering large-scale nanophotonic technologies.

https://vocus.cc/article/61313116fd89780001d1dee3

https://comicvine.gamespot.com/forums/gen-discussion-1/donald-trum-is-bainchod-2232640/

https://console.mytrendingstories.com/article/single/asdfsag-dsfgvdshbtgn-sdfdshbtgfn-asfsdrhb-uncqjl

https://vocus.cc/article/613131c7fd89780001d1df36

https://console.mytrendingstories.com/article/single/sare-gama-paaaaaaaaaaaaaaaaaaaaaaaaaaa-sedujw

https://vocus.cc/article/6131323bfd89780001d1df8e

https://console.mytrendingstories.com/article/single/more-than-of-americans-and-older-have-dlihrv

https://blog.goo.ne.jp/vangatori/e/470cbd398db223f45c290b1bf7e1b788

https://blog.goo.ne.jp/vangatori/e/3b6e0dcbc306a9f26401cb5d706b8835

https://blog.goo.ne.jp/vangatori/e/6ab4671d83c6412a9516638a696cbbbc

https://www.88posts.com/post/704679/the-citadel-vs-coastal-carolina-live-stream-reddit-info-2021

https://mobile.sites.google.com/view/thecitadelvscoastalcarolinal/


https://mobile.sites.google.com/view/thecitadelvscoastalcarolina202/

https://mobile.sites.google.com/view/thecitadelvs-coastalcarolina/


https://mobile.sites.google.com/view/coastalcarolinavsthecitadelliv/

https://mobile.sites.google.com/view/coastalcarolinavscitadelliveon/


https://mobile.sites.google.com/view/streamscoastalcarolinavsthecit/

https://mobile.sites.google.com/view/longislanduniversityvsflorida/


https://mobile.sites.google.com/view/longislanduniversity-vsflorida/

https://mobile.sites.google.com/view/liusharksvsfiupantherslivestre/


https://mobile.sites.google.com/view/ncaafstreamsliusharksvsfiupant/

https://mobile.sites.google.com/view/fiu-vs-liu-sharks-live-stream-/


https://mobile.sites.google.com/view/boise-state-vs-ucf-livestream-/

https://mobile.sites.google.com/view/boise-state-vsucf-football-liv/


https://mobile.sites.google.com/view/ncaafboisestatevsucfgamelivest/

https://mobile.sites.google.com/view/ucfvsboisestatelivestreamreddi/


https://mobile.sites.google.com/view/w-1-ucf-vs-boise-state-footbal/

https://mobile.sites.google.com/view/ucfvsboisestategamelivestreaml/


https://mobile.sites.google.com/view/westernillinoisvsballstatecard/

https://mobile.sites.google.com/view/livestream-western-illinois-vs/


https://mobile.sites.google.com/view/how-to-watch-ball-state-vs-wes/

https://mobile.sites.google.com/view/fightwesternillinoisvsballstat/


https://mobile.sites.google.com/view/ball-state-vs-western-illinois/


https://mobile.sites.google.com/view/ballstatevswesternillinoisredd/

https://mobile.sites.google.com/view/wagnervsbuffalolivestreamonlin/


https://mobile.sites.google.com/view/wagner-vs-buffalo-livestream/

https://mobile.sites.google.com/view/watch-buffalo-vs-wagner-footba/


https://mobile.sites.google.com/view/weber-state-vs-utah-livestream/


https://mobile.sites.google.com/view/weberstatevsutahlivefreereddit/

https://mobile.sites.google.com/view/redditweberstatevsutahlivestre/


https://mobile.sites.google.com/view/utahvsweberstatelivestreamhowt/

https://mobile.sites.google.com/view/utahvsweberstatelivestreamredd/


https://mobile.sites.google.com/view/south-florida-vs-ncstate-live/


https://mobile.sites.google.com/view/south-florida–nc-state-live-/


https://mobile.sites.google.com/view/south-florida-v-nc-state-live-/


https://mobile.sites.google.com/view/week-1southfloridavsncstategam/

https://mobile.sites.google.com/view/usfvsncstatelivestreamfreeonli/


https://mobile.sites.google.com/view/usf-vs-nc-state-live-stream-re/

https://mobile.sites.google.com/view/usf-vs-nc-state-football-game-/


https://mobile.sites.google.com/view/watcheastcarolinavsappalachian/


https://mobile.sites.google.com/view/east-carolinavs-appalachian-st/

https://mobile.sites.google.com/view/watch-east-carolinavsappalach/


https://mobile.sites.google.com/view/appalachianstatevseastcarolin/

https://mobile.sites.google.com/view/tulsavsucdavislivecollegefootb/


https://mobile.sites.google.com/view/ncaaf-uc-davis-vs-tulsa-live-s/

https://mobile.sites.google.com/view/ucdavisvstulsacollegefootballl/


https://mobile.sites.google.com/view/ohio-state-vs-minnesota-live-/


https://mobile.sites.google.com/view/ohio-state-v-minnesota-live/


https://mobile.sites.google.com/view/ohiostatevsminnesotafootballli/

https://mobile.sites.google.com/view/week-1-ohio-state-vs-minnesota/


https://mobile.sites.google.com/view/minnesotavsohiostategamelivest/

https://mobile.sites.google.com/view/minnesotavsohiostatecollegefoo/


https://mobile.sites.google.com/view/minnesota-vs-ohio-state-ncaaf-/

https://mobile.sites.google.com/view/minnesota-vs-ohio-state-live/


https://mobile.sites.google.com/view/footballbowlinggreenvstennesse/

https://mobile.sites.google.com/view/bowlinggreen-v-tennessee-live/


https://mobile.sites.google.com/view/bowling-green-vs-tennessee-foo/

https://mobile.sites.google.com/view/w1-bowling-green-vs-tennessee-/


https://mobile.sites.google.com/view/tennessee-vs-bowling-green-col/

https://mobile.sites.google.com/view/streamstvtennesseevsbowlinggre/


https://mobile.sites.google.com/view/tennesseevsbowlinggreengame202/

https://mobile.sites.google.com/view/ncaautmartinvswesternkentuckyl/


https://mobile.sites.google.com/view/utmartin-vs-western-kentucky-/


https://mobile.sites.google.com/view/utmartinvswesternkentuckyfootb/

https://mobile.sites.google.com/view/houston-baptist-v-new-mexico/

https://mobile.sites.google.com/view/watch-houston-baptist-vs-new-m/


https://mobile.sites.google.com/view/freenewmexicovshoustonbaptistl/

https://mobile.sites.google.com/view/newmexicovshoustonbaptistfootb/


https://mobile.sites.google.com/view/newmexico-houston-baptist-live/

https://mobile.sites.google.com/view/easternwashington-v-unlv-live/


https://mobile.sites.google.com/view/eastern-washington-vs-unlv-gam/

https://mobile.sites.google.com/view/eastern-washington-vs-unlv-foo/


https://mobile.sites.google.com/view/southern-utah-arizona-state/

https://mobile.sites.google.com/view/southernutah-vs-arizonastate-/


https://mobile.sites.google.com/view/southernutahvsarizonastatefoot/

https://mobile.sites.google.com/view/arizonastate-vs-southern-utah-/


https://mobile.sites.google.com/view/arizonastatevssouthernutahfoot/

https://mobile.sites.google.com/view/how-to-watch-arizona-state-vs-/


https://mobile.sites.google.com/view/how-to-watch-asu-vs-southern-u/

https://mobile.sites.google.com/view/asuvssouthernutahfootballlives/


https://mobile.sites.google.com/view/asu-vs-southern-utah-livestrea/

https://w1.sites.google.com/view/thecitadelvscoastalcarolinal/


https://w1.sites.google.com/view/thecitadelvscoastalcarolina202/

https://w1.sites.google.com/view/thecitadelvs-coastalcarolina/


https://w1.sites.google.com/view/coastalcarolinavsthecitadelliv/

https://w1.sites.google.com/view/coastalcarolinavscitadelliveon/


https://w1.sites.google.com/view/streamscoastalcarolinavsthecit/


https://w1.sites.google.com/view/longislanduniversityvsflorida/

https://w1.sites.google.com/view/longislanduniversity-vsflorida/


https://w1.sites.google.com/view/liusharksvsfiupantherslivestre/

https://w1.sites.google.com/view/ncaafstreamsliusharksvsfiupant/


https://w1.sites.google.com/view/fiu-vs-liu-sharks-live-stream-/

https://w1.sites.google.com/view/boise-state-vs-ucf-livestream-/


https://w1.sites.google.com/view/boise-state-vsucf-football-liv/

https://w1.sites.google.com/view/ncaafboisestatevsucfgamelivest/


https://w1.sites.google.com/view/ucfvsboisestatelivestreamreddi/

https://w1.sites.google.com/view/w-1-ucf-vs-boise-state-footbal/


https://w1.sites.google.com/view/ucfvsboisestategamelivestreaml/

https://w1.sites.google.com/view/westernillinoisvsballstatecard/


https://w1.sites.google.com/view/livestream-western-illinois-vs/

https://w1.sites.google.com/view/how-to-watch-ball-state-vs-wes/


https://w1.sites.google.com/view/fightwesternillinoisvsballstat/

https://w1.sites.google.com/view/ball-state-vs-western-illinois/


https://w1.sites.google.com/view/ballstatevswesternillinoisredd/

https://w1.sites.google.com/view/wagnervsbuffalolivestreamonlin/


https://w1.sites.google.com/view/wagner-vs-buffalo-livestream/

https://w1.sites.google.com/view/watch-buffalo-vs-wagner-footba/


https://w1.sites.google.com/view/weber-state-vs-utah-livestream/

https://w1.sites.google.com/view/weberstatevsutahlivefreereddit/


https://w1.sites.google.com/view/redditweberstatevsutahlivestre/

https://w1.sites.google.com/view/utahvsweberstatelivestreamhowt/


https://w1.sites.google.com/view/utahvsweberstatelivestreamredd/


https://w1.sites.google.com/view/south-florida-vs-ncstate-live/


https://w1.sites.google.com/view/south-florida–nc-state-live-/

https://w1.sites.google.com/view/south-florida-v-nc-state-live-/


https://w1.sites.google.com/view/week-1southfloridavsncstategam/


https://w1.sites.google.com/view/usfvsncstatelivestreamfreeonli/

https://w1.sites.google.com/view/usf-vs-nc-state-live-stream-re/


https://w1.sites.google.com/view/usf-vs-nc-state-football-game-/


https://w1.sites.google.com/view/watcheastcarolinavsappalachian/

https://w1.sites.google.com/view/east-carolinavs-appalachian-st/


https://w1.sites.google.com/view/watch-east-carolinavsappalach/

https://w1.sites.google.com/view/appalachianstatevseastcarolin/


https://w1.sites.google.com/view/tulsavsucdavislivecollegefootb/

https://w1.sites.google.com/view/ncaaf-uc-davis-vs-tulsa-live-s/


https://w1.sites.google.com/view/ucdavisvstulsacollegefootballl/

https://w1.sites.google.com/view/ohio-state-vs-minnesota-live-/


https://w1.sites.google.com/view/ohio-state-v-minnesota-live/


https://w1.sites.google.com/view/ohiostatevsminnesotafootballli/

https://w1.sites.google.com/view/week-1-ohio-state-vs-minnesota/


https://w1.sites.google.com/view/minnesotavsohiostategamelivest/

https://w1.sites.google.com/view/minnesotavsohiostatecollegefoo/


https://w1.sites.google.com/view/minnesota-vs-ohio-state-ncaaf-/

https://w1.sites.google.com/view/minnesota-vs-ohio-state-live/


https://w1.sites.google.com/view/footballbowlinggreenvstennesse/

https://w1.sites.google.com/view/bowlinggreen-v-tennessee-live/


https://w1.sites.google.com/view/bowling-green-vs-tennessee-foo/

https://w1.sites.google.com/view/w1-bowling-green-vs-tennessee-/


https://w1.sites.google.com/view/tennessee-vs-bowling-green-col/


https://w1.sites.google.com/view/streamstvtennesseevsbowlinggre/


https://w1.sites.google.com/view/tennesseevsbowlinggreengame202/

https://w1.sites.google.com/view/ncaautmartinvswesternkentuckyl/


https://w1.sites.google.com/view/utmartin-vs-western-kentucky-/

https://w1.sites.google.com/view/utmartinvswesternkentuckyfootb/


https://w1.sites.google.com/view/houston-baptist-v-new-mexico/

https://w1.sites.google.com/view/watch-houston-baptist-vs-new-m/


https://w1.sites.google.com/view/freenewmexicovshoustonbaptistl/

https://w1.sites.google.com/view/newmexicovshoustonbaptistfootb/


https://w1.sites.google.com/view/newmexico-houston-baptist-live/

https://w1.sites.google.com/view/easternwashington-v-unlv-live/


https://w1.sites.google.com/view/eastern-washington-vs-unlv-gam/

https://w1.sites.google.com/view/eastern-washington-vs-unlv-foo/


https://w1.sites.google.com/view/southern-utah-arizona-state/

https://w1.sites.google.com/view/southernutah-vs-arizonastate-/


https://w1.sites.google.com/view/southernutahvsarizonastatefoot/

https://w1.sites.google.com/view/arizonastate-vs-southern-utah-/


https://w1.sites.google.com/view/arizonastatevssouthernutahfoot/

https://w1.sites.google.com/view/how-to-watch-arizona-state-vs-/


https://w1.sites.google.com/view/how-to-watch-asu-vs-southern-u/

https://w1.sites.google.com/view/asuvssouthernutahfootballlives/


https://w1.sites.google.com/view/asu-vs-southern-utah-livestrea/

https://pastebin.com/8iSsAqjy

https://paiza.io/projects/J7bqRY29X89IAMdN3_jv3Q?language=php

https://bitbin.it/1vOchgEt/

https://pastelink.net/3c0vf

https://www.bankier.pl/forum/temat_asdsfgvd,49270925.html

http://cpp.sh/8yfvs

https://notes.io/LEvx

https://tautaruna.nra.lv/forums/tema/45922-asdsgvfbhgfn/

Writing in Nature on 18th August 2021, a highly collaborative international team led by scientists at the City University of New York Advanced Science Research Center at the Graduate Center, Huazhong University of Science and Technology (HUST), National University of Singapore (NUS) and National Center for Nanoscience and Technology (NCNST) has reported that calcite —a well-known bulk crystal commonly used in other technologies—can naturally support ghost polaritons.

The team explored light interactions with calcite and found unexpected infrared phonon polariton responses. They demonstrated that calcite, which can be easily polished, can support ghost polariton surface waves that feature complex, out-of-plane momentum totally different from any observed surface polariton to date. 

“Polaritonics is the science and technology of exploiting strong interactions of light with matter, and it has revolutionized optical sciences in the past few years,” said Andrea Alù, Einstein Professor of Physics at the Graduate Center and Founding Director of the Photonics Initiative at the Advanced Science Research Center at the CUNY Graduate Center. “Our discovery is the latest example of the exciting science and surprising physics that can emerge from exploring polaritons in conventional materials like calcite.”

“We used scattering-type scanning near-field optical microscopy (s-SNOM) to probe these ghost polaritons,” said first author Weiliang Ma, a Ph.D. candidate at HUST. “Excitingly, we have shown ray-like nano-light propagation for up to 20 micrometers, a record long distance for polariton waves at room temperature.” 

“We have been thrilled to find a new solution of Maxwell’s equations featuring complex, out-of-plane momentum. And even more excitingly, we have been able to observe it in a very common crystal.” says Guangwei Hu, co-first author, NUS postdoctoral fellow and long-term visitor at CUNY.  

“This type of polaritons can be tuned through their optical axis, introducing a new way of manipulation of polaritons, said Cheng-Wei Qiu, Dean’s Chair professor at NUS. “We believe our findings will stimulate exploration of various optical crystals for nanoscale light manipulation.”

Leave a Reply

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