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A Never-Before-Seen World of Correlated Disorder ~ Functional Metamaterials for Wave Scattering
A Never-Before-Seen World of Correlated Disorder ~ Functional Metamaterials for Wave Scatt...
A Never-Before-Seen World of Correlated Disorder ~ Functional Metamaterials for Wave Scattering

Detailed Information

자료유형  
 학위논문 서양
최종처리일시  
20260202103612
ISBN  
9798293888719
DDC  
530
저자명  
Shih, Aaron.
서명/저자  
A Never-Before-Seen World of Correlated Disorder ~ Functional Metamaterials for Wave Scattering
발행사항  
[Sl] : New York University, 2025
발행사항  
Ann Arbor : ProQuest Dissertations & Theses, 2025
형태사항  
169 p
주기사항  
Source: Dissertations Abstracts International, Volume: 87-03, Section: B.
주기사항  
Advisor: Martiniani, Stefano.
학위논문주기  
Thesis (Ph.D.)--New York University, 2025.
초록/해제  
요약In this thesis, I describe FReSCo (Fast Reciprocal Space Correlator), the generative algorithm I developed to create correlated disordered point patterns with prescribed correlations, and show a variety of point patterns that demonstrate the wide, unexplored design space enabled by FReSCo. Using these point patterns as representations of metamaterials, I characterize their optical properties using the coupled dipoles method. In this process, I created a new class of material structures which I call gyromorphs. Gyromorphs exhibit seemingly contradictory properties - they possess both rotational order and local isotropy. I show that gyromorphs are excellent candidates as useful optical metamaterials as they exhibit large, deep, isotropic photonic bandgaps - a characteristic useful for a variety of optoelectronic applications. In chapter 1, I introduce observables that are used to characterize and classify point patterns by their correlations. In chapter 2, I introduce FReSCo and provide the mathematics behind the algorithm. In chapter 3, I show a variety of point patterns generated using FReSCo that highlight its versatility. In particular, I introduce gyromorphs and discuss their unique statistical properties. In chapter 4, I introduce the optics of collections of small scatterers in both the single- and multiple-scattering regimes and discuss bandgaps as desirable features of optical metamaterials. In chapter 5, I discuss commonalities of candidate isotropic bandgap material structures and propose gyromorphs as a new candidate. I show optical calculations comparing gyromorphs to the previous candidates proposed in literature and demonstrate that gyromorphs are superior isotropic bandgap materials. Finally, I show how FReSCo can be used to create a variety of optical metamaterials with different functions.
일반주제명  
Statistical physics
일반주제명  
Optics
일반주제명  
Materials science
키워드  
Fourier transform
키워드  
Hyperuniformity
키워드  
Metamaterials
키워드  
Photonic bandgap
키워드  
Scattering
기타저자  
New York University Mathematics
기본자료저록  
Dissertations Abstracts International. 87-03B.
전자적 위치 및 접속  
로그인 후 원문을 볼 수 있습니다.

MARC

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■020    ▼a9798293888719
■035    ▼a(MiAaPQ)AAI32043467
■040    ▼aMiAaPQ▼cMiAaPQ
■0820  ▼a530
■1001  ▼aShih,  Aaron.
■24512▼aA  Never-Before-Seen  World  of  Correlated  Disorder  ~  Functional  Metamaterials  for  Wave  Scattering
■260    ▼a[Sl]▼bNew  York  University▼c2025
■260  1▼aAnn  Arbor▼bProQuest  Dissertations  &  Theses▼c2025
■300    ▼a169  p
■500    ▼aSource:  Dissertations  Abstracts  International,  Volume:  87-03,  Section:  B.
■500    ▼aAdvisor:  Martiniani,  Stefano.
■5021  ▼aThesis  (Ph.D.)--New  York  University,  2025.
■520    ▼aIn  this  thesis,  I  describe  FReSCo  (Fast  Reciprocal  Space  Correlator),  the  generative  algorithm  I  developed  to  create  correlated  disordered  point  patterns  with  prescribed  correlations,  and  show  a  variety  of  point  patterns  that  demonstrate  the  wide,  unexplored  design  space  enabled  by  FReSCo.  Using  these  point  patterns  as  representations  of  metamaterials,  I  characterize  their  optical  properties  using  the  coupled  dipoles  method.  In  this  process,  I  created  a  new  class  of  material  structures  which  I  call  gyromorphs.  Gyromorphs  exhibit  seemingly  contradictory  properties  -  they  possess  both  rotational  order  and  local  isotropy.  I  show  that  gyromorphs  are  excellent  candidates  as  useful  optical  metamaterials  as  they  exhibit  large,  deep,  isotropic  photonic  bandgaps  -  a  characteristic  useful  for  a  variety  of  optoelectronic  applications.  In  chapter  1,  I  introduce  observables  that  are  used  to  characterize  and  classify  point  patterns  by  their  correlations.  In  chapter  2,  I  introduce  FReSCo  and  provide  the  mathematics  behind  the  algorithm.  In  chapter  3,  I  show  a  variety  of  point  patterns  generated  using  FReSCo  that  highlight  its  versatility.  In  particular,  I  introduce  gyromorphs  and  discuss  their  unique  statistical  properties.  In  chapter  4,  I  introduce  the  optics  of  collections  of  small  scatterers  in  both  the  single-  and  multiple-scattering  regimes  and  discuss  bandgaps  as  desirable  features  of  optical  metamaterials.  In  chapter  5,  I  discuss  commonalities  of  candidate  isotropic  bandgap  material  structures  and  propose  gyromorphs  as  a  new  candidate.  I  show  optical  calculations  comparing  gyromorphs  to  the  previous  candidates  proposed  in  literature  and  demonstrate  that  gyromorphs  are  superior  isotropic  bandgap  materials.  Finally,  I  show  how  FReSCo  can  be  used  to  create  a  variety  of  optical  metamaterials  with  different  functions.
■590    ▼aSchool  code:  0146.
■650  4▼aStatistical  physics
■650  4▼aOptics
■650  4▼aMaterials  science
■653    ▼aFourier  transform
■653    ▼aHyperuniformity
■653    ▼aMetamaterials
■653    ▼aPhotonic  bandgap
■653    ▼aScattering
■690    ▼a0217
■690    ▼a0794
■690    ▼a0752
■71020▼aNew  York  University▼bMathematics.
■7730  ▼tDissertations  Abstracts  International▼g87-03B.
■790    ▼a0146
■791    ▼aPh.D.
■792    ▼a2025
■793    ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17357877▼nKERIS▼z이  자료의  원문은  한국교육학술정보원에서  제공합니다.

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