Detection of nanoparticle changes in nanocomposite active sample using random laser emission

Ehsan Shojaie; Khosro Madanipour

doi:10.1117/12.2270275

26 June 2017 Detection of nanoparticle changes in nanocomposite active sample using random laser emission

Ehsan Shojaie, Khosro Madanipour

Proceedings Volume 10330, Modeling Aspects in Optical Metrology VI; 103301L (2017) https://doi.org/10.1117/12.2270275
Event: SPIE Optical Metrology, 2017, Munich, Germany

Abstract

In this work, a simple method is introduced for estimating the number of the nanoparticles in an active sample based on random laser theory. The sample includes nanoparticles which are distributed randomly. Because of multiple scattering random laser action can occurs when the sample is pumped optically. Here, one-dimensional random laser system is considered and the sample changes are added to the system by changing the number or size of layer. The spectral emission of the sample is calculated by transfer matrix method. The statistical behavior of output emission spectrum is achieved by calculating the averaged spectrum from many random realizations. The results of simulation shows that changes in the number of nanoparticles (or in the averaged size) can be estimated from the statistical random laser output emission and averaged lasing wavelength. This proposed method is fast, non-contact, and needs to a simple setup. Also, it can be used for biological and chemical medium for analysis of different parameters which effect on the spectral random emission.

Citation Download Citation

Ehsan Shojaie and Khosro Madanipour "Detection of nanoparticle changes in nanocomposite active sample using random laser emission", Proc. SPIE 10330, Modeling Aspects in Optical Metrology VI, 103301L (26 June 2017); https://doi.org/10.1117/12.2270275

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available