Emulsifier-Free Emulsion Polymerization Produces Highly Charged, Monodisperse Particles for Near Infrared Photonic Crystals

2002 ◽  
Vol 248 (1) ◽  
pp. 41-46 ◽  
Author(s):  
Chad E. Reese ◽  
Sanford A. Asher
2015 ◽  
Vol 641 ◽  
pp. 127-131 ◽  
Author(s):  
Zhengwen Yang ◽  
Hangjun Wu ◽  
Jun Li ◽  
Bo Shao ◽  
Jianbei Qiu ◽  
...  

2019 ◽  
Vol 28 (7) ◽  
pp. 9-16
Author(s):  
Shich-Chuan Wu ◽  
Yu-Lin Yang ◽  
Wen-Hsien Huang ◽  
Yang-Tung Huang

2022 ◽  
Vol 16 (1) ◽  
pp. 2270002
Author(s):  
Christina Jörg ◽  
Sachin Vaidya ◽  
Jiho Noh ◽  
Alexander Cerjan ◽  
Shyam Augustine ◽  
...  

2009 ◽  
Vol 94 (4) ◽  
pp. 041122 ◽  
Author(s):  
Yu-Lin Yang ◽  
Fu-Ju Hou ◽  
Shich-Chuan Wu ◽  
Wen-Hsien Huang ◽  
Ming-Chih Lai ◽  
...  

MRS Bulletin ◽  
2001 ◽  
Vol 26 (8) ◽  
pp. 637-641 ◽  
Author(s):  
Vicki L. Colvin

Over a decade ago, theorists predicted that photonic crystals active at visible and near-infrared wavelengths would possess a variety of exciting optical properties. Only in the last several years, however, have experimentalists begun to build materials that realize this potential in the laboratory. This lag between experiment and theory is primarily due to the to the challenges associated with fabricating these unique materials. As the term “crystal” suggests, these samples must consist of highly perfect ordered arrays of solids. However, unlike conventional crystals, which exhibit order on the angstrom length scale, photonic crystals must have order on the submicrometer length scale. In addition, many of the most valuable properties of photonic crystals are only realized when samples possess a “full” photonic bandgap. For such systems, large dielectric contrasts and particular crystal symmetries create a range of frequencies over which light cannot propagate. Realizing the nanoscopic architectures required to form such systems is a challenge for experimentalists. As a result, fabrication schemes that rely on lithographic techniques or spontaneous assembly have been a focus in the development of the field.


1999 ◽  
Vol 597 ◽  
Author(s):  
Kevin M. Chen ◽  
Andrew W. Sparks ◽  
Hsin-Chiao Luan ◽  
Desmond R. Lim ◽  
Kazumi Wada ◽  
...  

AbstractThin films of sol-gel SiO2 and TiO2 were used to fabricate two types of onedimensional photonic crystals: an omnidirectional reflector and microcavity resonator. The reflector consisted of six SiO2/TiO2 bilayers, designed with a stopband in the near infrared. Reflectance measurements over an incident angle range of 0–80° showed an omnidirectional band of 70 nm, which agrees with theoretical predictions for this materials system. The microcavity resonator consisted of a TiO2 Fabry-Perot cavity sandwiched between two SiO2/TiO2 mirrors of three bilayers each. We have fabricated a microcavity with resonance at λcavity = 1500nm and achieved a quality factor of Q=35. We measured a modulation in the cavity resonance frequency with a change of defect layer thickness and incident angle of light. This work demonstrates the feasibility of fabricating photonic crystals via the sol-gel method.


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