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Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：Approximation and computation for the linear and nonlinear eigenvalue problems in photonic crystals
光子晶体 线性非线性特征值问题 近似 计算
2023/5/15
In this talk, we discuss the approximation and computation for the linear and nonlinear eigenvalue problems in photonic crystals. We discretize the shifted Maxwell operator with edge finite elements a...
Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：Computation of phononic crystals using the PG finite element method
PG有限元法 计算 声子晶体
2023/4/17
Phononic crystals are composite materials with periodic distribution of two or more media. The difficulty of computing the band structure of the phononic crystals lies in capturing the complex geometr...
The mysterious changes in phases of matter – from solid to liquid and back again – have fascinated Eun-Ah Kim since she was in lower elementary school in South Korea. Without cold drinking water readi...
In 1934, physicist Eugene Wigner made a theoretical prediction based on quantum mechanics that for decades years went unseen.
'Blinking' crystals may convert carbon dioxide into fuels（图）
Blinking crystals convert carbon dioxide into fuels
2020/7/24
Imagine tiny crystals that "blink" like fireflies and can convert carbon dioxide, a key cause of climate change, into fuels.A team funded by the U.S. National Science Foundation has created ...
LiMII(IO3)3 (MII = Zn and Cd): Two Promising Nonlinear Optical Crystals Derived from a Tunable Structure Model of α‐LiIO3（图）
非线性 光学晶体 LiMII
2023/3/28
Excellent nonlinear optical materials simultaneously meet the requirements of large SHG response, phase‐matching capability, wide transparency windows, considerable energy band‐gap, good thermal stabi...
2018 液晶，超材料，转换光学，光子晶体和太阳能电池研讨会（Workshop on Liquid Crystals, Metamaterials, Transformation Optics, Photonic Crystals, and Solar Cells）
2018 液晶 超材料 转换光学 光子晶体 太阳能电池 研讨会
2017/11/29
Since their discovery at the end of the 19th century, liquid crystals have helped illuminate the many ways in which light interacts with matter. The capability of nematic liquid crystal molecules to a...
You won’t find ice cubes like this in your freezer.An international team of scientists has set a new record for creating ice crystals that have a near-perfect cubic arrangement of water molecules—a fo...
CRYSTALS -- Dilithium: Digital Signatures from Module Lattices
digital signatures post-quantum cryptography implementations
2017/6/28
This paper presents Dilithium, a lattice-based signature scheme that is part of the CRYSTALS (Cryptographic Suite for Algebraic Lattices) package that will be submitted to the NIST call for post-quant...
CRYSTALS -- Kyber: a CCA-secure module-lattice-based KEM
KEM lattice techniques implementation
2017/6/28
This paper introduces Kyber (part of the CRYSTALS -- Cryptographic Suite for Algebraic Lattices -- package that will be submitted to the NIST call for post-quantum standards), a portfolio of post-quan...
Crystals once deep inside a volcano offer new view of magma,eruption timing
Crystals deep inside a volcano eruption timing
2017/7/21
Volcanologists are gaining a better understanding of what's going on inside the magma reservoir that lies below New Zealand's Mount Tarawera volcano. They're finding a colder, more solid place than th...
Volcanologists are gaining a new understanding of what’s going on inside the magma reservoir that lies below an active volcano, and they’re finding a colder, more solid place than previously thought, ...
NYU Chemists Color World of 3D Crystals with Advances in Self-Assembly
NYU Chemists Color World 3D Crystals Self-Assembly
2017/3/30
A team of New York University chemists has created self-assembled, three-dimensional DNA crystals that can bind a separate, dye-bearing strand—a breakthrough that enhances the functionality of these t...
第16届铁电液晶国际会议（16th International Conference on Ferroelectric Liquid Crystals: Challenges in polar self-assembling systems）
第16届 铁电液晶 国际会议
2017/3/10
We are delighted to invite you to the 16th International Conference on Ferroelectric Liquid Crystals: Challenges in polar self-assembling systems. The series of International Conferences on Ferroelect...
Researchers create 'time crystals' envisioned by Princeton scientists（图）
Researchers time crystals Princeton scientists
2017/3/30
Time crystals may sound like something from science fiction, having more to do with time travel or Dr. Who. These strange materials — in which atoms and molecules are arranged across space and time — ...