10.6 μm Laser Extinction Performance of Polydisperse Biological Aggregate Particles

Wei Lu; Youlin Gu; Jiajie Fang; Yihua Hu; Wanying Ding; Xinyu Wang; Xi Chen

doi:10.3788/CJL202148.0401019

Chinese Journal of Lasers, Volume. 48, Issue 4, 0401019(2021)

10.6 μm Laser Extinction Performance of Polydisperse Biological Aggregate Particles

Wei Lu¹, Youlin Gu^1,2、*, Jiajie Fang¹, Yihua Hu^1,2, Wanying Ding¹, Xinyu Wang¹, and Xi Chen¹

¹State Key Laboratory of Pulsed Power Laser Technology, National University of Defense Technology, Hefei, Anhui 230037, China

²Advanced Laser Technology Laboratory of Anhui Province, Hefei, Anhui 230037, China

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Figures & Tables(9)

Fig. 1. Polydisperse biological aggregation particles models. (a) Original particles of 20; (b) original particles of 30; (c) original particles of 40; (d) original particles of 50; (e) original particles of 60; (f) original particles of 70

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Fig. 2. Three kinds of polydisperse biological aggregation particles models (N=50). (a) Model 1; (b) model 2; (c) model 3

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Fig. 3. Influence of porosity on extinction coefficient of biological particles

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Fig. 4. Influence of porosity accuracy on ratio of the extinction coefficient difference of adjacent porosity to the corresponding extinction coefficient of the previous porosity

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Fig. 5. Influence of the number of original particles on extinction coefficient of biological particles

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Fig. 6. Influence of particle size distribution variance on extinction coefficient of biological particles

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Fig. 7. Influence of particle size distribution mean on extinction coefficient of biological particles

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Table 1. Parameter analysis of each model

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Table 1. Parameter analysis of each model

Model	R_g /μm	P	Re $(m_{eff})$	Im $(m_{eff})$
a	12.5615	0.8841	1.1103	0.0344
b	12.4814	0.8819	1.1126	0.0351
c	12.1734	0.8727	1.1216	0.0381
d	12.0567	0.8690	1.1253	0.0393
e	11.4862	0.8485	1.1458	0.0460
f	11.0710	0.8308	1.1637	0.0520
g	10.3889	0.7952	1.2001	0.0644
h	10.0872	0.7762	1.2198	0.0712

Table 2. Extinction coefficient corresponding to different interval porosity

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Table 2. Extinction coefficient corresponding to different interval porosity

No.	Extinction coefficient
No.	0.71--0.80(interval:0.01)	0.830--0.839(interval:0.001)	0.8350--0.8359(interval:0.0001)
1	2.21	1.12	1.05
2	2.16	1.15	1.07
3	2.05	1.09	1.05
4	1.90	1.10	1.09
5	1.79	1.05	1.07
6	1.79	1.06	1.06
7	1.60	1.07	1.08
8	1.46	1.08	1.07
9	1.44	1.05	1.06
10	1.26	1.02	1.07

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Wei Lu, Youlin Gu, Jiajie Fang, Yihua Hu, Wanying Ding, Xinyu Wang, Xi Chen. 10.6 μm Laser Extinction Performance of Polydisperse Biological Aggregate Particles[J]. Chinese Journal of Lasers, 2021, 48(4): 0401019

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Paper Information

Special Issue: SPECIAL ISSUE FOR "NATIONAL UNIVERSITY OF DEFENSE TECHNOLOGY"

Received: Aug. 13, 2020

Accepted: Sep. 4, 2020

Published Online: Feb. 8, 2021

The Author Email: Gu Youlin (ylgu0912@163.com)

DOI:10.3788/CJL202148.0401019

Topics

laser devices and laser physics

Lasers and Laser Optics

Laser physics

laser manufacturing

Instrumentation, Measurement and Metrology