도트 패턴을 이용한 회절 격자 금형 제작

• 영문명: Fabrication of diffraction grating mold using dot pattern
• 발행기관: 한국레이저가공학회
• 저자명: 노지환(Jihan Noh) 이제훈(Jae-Hoon Lee) 손현기(Hyonkee Sohn) 서정(Jeong Suh) 신동식(Dongsig Shin) 정용운(youngun Joung)
• 간행물 정보: 『한국레이저가공학회 학술대회 논문집』2006년도 추계학술발표대회 논문집, 114~117쪽, 전체 4쪽
• 주제분류: 공학 > 기계공학
• 파일형태: PDF
• 발행일자: 2006.11.01

영문 초록

  Diffraction grating is the optical device which has periodic pattern. Decorative logotypes is the one of application of diffraction grating. In this paper diffraction grating for decorative logotype is fabricated by dot pattern in stead of line pattern. A metallic mold for diffraction gratings is fabricated with a mode-locked 12 ps Nd:YVO₄ laser. Laser pulses with a wavelength of 355㎚ are irradiated on the surface of NOK 80, a mold material, to generate dot patterns. In order to minimize the dot diameter, laser power is set just above the ablation threshold of NOK 80. Results show that the spectrum from the fabricated mold is good enough for some industrial application.

목차

ABSTRACT
1. 서론
2. 실험
3. 회절 격자의 광학적 시뮬레이션
4. 실험 결과
5. 결론
참고 문헌

키워드

micro-machining picosecond laser ablation threshold diffraction grating mold