Three-dimensional Numerical Simulation on the Directly Written Waveguide Formation with 320 nm UV Laser in Lithium Niobate

铌酸锂 激光器 材料科学 光学 波导管 锂(药物) 光电子学 物理 医学 内分泌学
作者
Yue Zuo,Bo Wu,Y. R. Shen
出处
期刊:Journal of Nonlinear Optical Physics & Materials [World Scientific]
标识
DOI:10.1142/s0218863524500152
摘要

Three-dimensional numerical simulation on the waveguide formation written directly by 320[Formula: see text]nm ultraviolet laser in congruent lithium niobate (LN) crystal is presented. With the recent development of praseodymium (Pr)-doped laser crystal, the 320 nm UV laser has become easily available today. Though the absorption coefficient of this wavelength laser in LN is relatively low at room temperature, which might deter the direct waveguide writing fabrication, the situation will be much different when temperature rises. The absorption coefficient of this laser in LN will increase significantly under elevated temperature. When the temperature-dependent absorption coefficient is taken into consideration, the coupling of temperature and absorbed laser power will bring about interesting absorption characteristics. That is, the penetration depth of the laser will be affected by its power and the focus condition. In this work, we investigate the waveguide formation process in heated LN crystal via the lithium ion thermal-diffusion model. Cases where the laser is focused onto the surface and into the crystal are studied separately. The results show that when extra heated, the LN crystal can strongly absorb the 320[Formula: see text]nm laser focused on the surface and then form surface waveguides. Besides, when focused into the crystal, the laser will penetrate into the crystal and create internal high-temperature area with appropriated power and focusing parameter. However, in this case, only a relatively small refractive index change is obtained, which is not large enough to support efficient waveguide mode.
最长约 10秒,即可获得该文献文件

科研通智能强力驱动
Strongly Powered by AbleSci AI
更新
PDF的下载单位、IP信息已删除 (2025-6-4)

科研通是完全免费的文献互助平台,具备全网最快的应助速度,最高的求助完成率。 对每一个文献求助,科研通都将尽心尽力,给求助人一个满意的交代。
实时播报
爱笑晓曼发布了新的文献求助20
刚刚
老大蒂亚戈应助YJ888采纳,获得10
1秒前
JamesPei应助潇湘雪月采纳,获得10
1秒前
bbczj发布了新的文献求助10
3秒前
4秒前
5秒前
南风知我意完成签到,获得积分20
6秒前
段一帆发布了新的文献求助30
8秒前
wangqinlei完成签到 ,获得积分10
8秒前
fenghp发布了新的文献求助10
9秒前
王馨雨发布了新的文献求助10
9秒前
11秒前
CipherSage应助ccalvintan采纳,获得10
12秒前
12秒前
雪天的阳完成签到 ,获得积分10
14秒前
15秒前
16秒前
16秒前
烟花应助ren采纳,获得10
17秒前
讨厌科研发布了新的文献求助10
17秒前
量子星尘发布了新的文献求助10
18秒前
苏卿应助科研通管家采纳,获得30
19秒前
fd163c应助科研通管家采纳,获得10
20秒前
香蕉觅云应助科研通管家采纳,获得10
20秒前
思源应助科研通管家采纳,获得10
20秒前
SYLH应助科研通管家采纳,获得10
20秒前
20秒前
CAOHOU应助科研通管家采纳,获得10
20秒前
爆米花应助科研通管家采纳,获得10
20秒前
SYLH应助科研通管家采纳,获得30
20秒前
小蘑菇应助科研通管家采纳,获得10
20秒前
20秒前
殷勤的紫槐完成签到,获得积分10
20秒前
风轻青柠发布了新的文献求助10
21秒前
21秒前
机智冬灵完成签到,获得积分10
22秒前
23秒前
为小嗳打伞完成签到 ,获得积分10
25秒前
小木安华发布了新的文献求助10
25秒前
体贴的之卉完成签到,获得积分20
27秒前
高分求助中
A new approach to the extrapolation of accelerated life test data 1000
ACSM’s Guidelines for Exercise Testing and Prescription, 12th edition 500
‘Unruly’ Children: Historical Fieldnotes and Learning Morality in a Taiwan Village (New Departures in Anthropology) 400
Indomethacinのヒトにおける経皮吸収 400
Phylogenetic study of the order Polydesmida (Myriapoda: Diplopoda) 370
基于可调谐半导体激光吸收光谱技术泄漏气体检测系统的研究 350
Robot-supported joining of reinforcement textiles with one-sided sewing heads 320
热门求助领域 (近24小时)
化学 材料科学 医学 生物 工程类 有机化学 生物化学 物理 内科学 纳米技术 计算机科学 化学工程 复合材料 遗传学 基因 物理化学 催化作用 冶金 细胞生物学 免疫学
热门帖子
关注 科研通微信公众号,转发送积分 3989390
求助须知:如何正确求助?哪些是违规求助? 3531487
关于积分的说明 11254109
捐赠科研通 3270153
什么是DOI,文献DOI怎么找? 1804887
邀请新用户注册赠送积分活动 882087
科研通“疑难数据库(出版商)”最低求助积分说明 809174