Artificial transmission-line-media Negative-index metamaterial

-






in metamaterial literature, medium or media refers transmission medium or optical medium. in 2002 group of researchers came idea in contrast materials depended on resonant behavior, non-resonant phenomena surpass narrow bandwidth constraints of wire/split-ring resonator configuration. idea translated type of medium broader bandwidth abilities, negative refraction, backward waves, , focusing beyond diffraction limit.


they dispensed split-ring-resonators , instead used network of l–c loaded transmission lines. in metamaterial literature became known artificial transmission-line media. @ time had added advantage of being more compact unit made of wires , split ring resonators. network both scalable (from megahertz tens of gigahertz range) , tunable. includes method focusing wavelengths of interest.


by 2007 negative refractive index transmission line employed subwavelength focusing free-space flat lens. free-space lens significant advance. part of prior research efforts targeted creating lens did not need embedded in transmission line.








Comments

Post a Comment

Popular posts from this blog

Discography Kassav'

-
1 discography 1.1 albums 1.2 singles 1.3 dvds discography albums studio albums 1979 love , kadance 1980 lagué mwen 1981 kassav n°3 1982 george décimus kassav (joint album george décimus / kassav ) 1983 kassav 1983 kassav n°5 1983 passeport 1984 ayé 1985 an-ba-chen n la (2x gold) 1987 vini pou (gold , platinum) 1989 majestik zouk (2x gold) 1992 tékit izi (2x gold) 1995 difé live albums 1987 kassav au zenith 1990 le grand méchant zouk 1993 live au zénith 1996 kassav cho 2005 carnaval tour 2005 (fr #124) 2006 le grand méchant zouk compilation albums 1987 les grand succès de kassav vol.1 1987 les grand succès de kassav vol.2 1998 kassav gold 1998 un toque latino 1999 le meilleur de kassav : best of 20e anniversaire 2002 les indispensables de kassav 2003 légendes kassav 2006 best of 2006 kassav: les années sonodisc 2009 saga (3 cd 53 remastered numbers , 4 unedited) (fr #45) 2012 le meilleur de kassav (fr #20) singles (selective, charting) dvds 1999 les 20 ans de kassav à bercy 2005 c...
Read more

History New York State Route 133

-
ny 133 westbound through village of mount kisco the alignment of ny 133 through town of new castle part of former croton turnpike (also known somerstown turnpike), connected town of somers village of sing sing (current-day ossining). croton turnpike company established on april 6, 1807 charter new york state assembly @ cost of 12.5 cents per wagon @ least 2 horses. middle of 19th century, croton turnpike had been dissolved, after 1849 request repeal charter given in 1807 had passed assembly. the first piece of ny 133 upgraded state highway standards alignment concurrent current-day ny 100 in millwood. designated state highway 143 (sh 143), alignment first contracted in 1903 3.14 miles (5.05 km) segment of macadam. new road 24 feet (7.3 m) wide , use 12 feet (3.7 m) of macadam pavement. project cost $30,430.00 (1903 usd) state covering half cost ($15,215.00). contract let on june 15, 1903, construction completed , accepted state highway s...
Read more

History Women in science

-
1 history 1.1 ancient history 1.2 medieval europe 1.3 scientific revolution (sixteenth, , seventeenth centuries) 1.4 eighteenth century 1.5 nineteenth century 1.6 late 19th century in europe 1.7 late nineteenth century in united states 1.8 twentieth century 1.8.1 europe before world war ii 1.8.2 united states before world war ii 1.9 later 20th century 1.9.1 europe after world war ii 1.9.2 united states after world war ii 1.9.3 australia after world war ii 1.9.4 israel after world war ii history ancient history the involvement of women in field of medicine has been recorded in several civilizations. ancient egyptian, merit-ptah (c. 2700 bc), described in inscription chief physician , earliest known female scientist named in history of science. agamede cited homer healer in ancient greece before trojan war (c. 1194–1184 bc). agnodike first female physician practice legally in fourth century bc athens. the study of natural philosophy in ancient greece open women. recorded examples includ...
Read more