| 세션명 | 대학원생 구두발표 (II) |
|---|---|
| 발표장 | 제10회장 (105) |
| 논문코드 | 1O10-7 |
| 발표일 | 2018-10-11 |
| 발표시간 | 15:10-15:25 |
| 논문제목 | Reconfigurable Capsule Resonator containing Cholesteric Liquid Crystals |
| 발표자 | 김종빈 |
| 발표자 소속 | 한국과학기술원 |
| 저자 | 이상석, 김종빈, 김윤호1, 김신현† |
| 소속 | 한국과학기술원; 1한국화학연구원 |
| 논문초록 | Periodic modulation of directors of cholesteric liquid crystals(CLCs) arises a photonic band-gap. Near the photonic band edge group velocity of photon approaches zero, and the local density of state of the photon is sharply enhanced. These effects make it possible to get the effective gain and amplification for laser. The CLCs are promising as the tunable organic laser resonator. However liquid state of CLC is vulnerable to pressure, therefore encapsulation is needed to ensure the structural stability. Here, we encapsulate CLCs with triple-emulsion generated by microfluidics to design a capsule-type laser resonator. The CLCs are encapsulated by aqueous inner shell and elastomer shell. The aqueous inner shell helps alignment of helical axes to have radial configuration and elastomer shell provides reconfigurable characteristics. The reconfigurable feature allows control of direction of lasing depending on deformed shape of the capsule. |
THE POLYMER SOCIETY OF KOREA