Quasi-CW lasing from Q-switched liquid crystal cavity allowing compact and low-cost devices

2015 Fiscal Year Final Research Report

• Project/Area Number: 26820112
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Electronic materials/Electric materials
• Research Institution: 防衛大学校(総合教育学群、人文社会科学群、応用科学群、電気情報学群及びシステム工学群)
• Principal Investigator: Inoue Yo 防衛大学校(総合教育学群、人文社会科学群、応用科学群、電気情報学群及びシステム工, その他部局等, 助教 (30723770)
• Project Period (FY): 2014-04-01 – 2016-03-31
• Keywords: 液晶レーザー / コレステリック液晶

Outline of Final Research Achievements

In this study, the possibilities of Q-switched laser action in cholesteric liquid crystal (ChLC) lasers was investigated. To demonstrate Q-switched lasing, the electro-optic effect with fast response times in the ChLCs must be achieved, and thus I focused on the speeding-up technique of the response characteristics. In the process, a new fast response component was discovered, which was the microscopic molecular motion separated by removing the motion of the helical elongation. At this time, the alignment method using a shear stress was required to orient the helix axis in the cell-plane direction.

Free Research Field

液晶デバイス応用