Vector analysis of the characteristics of diffractive microlens having common focus for a number of wavelengths

Yuling Liu; Chenghua Sui; Pinggen Cai

doi:10.1117/12.830880

20 May 2009 Vector analysis of the characteristics of diffractive microlens having common focus for a number of wavelengths

Yuling Liu, Chenghua Sui, Pinggen Cai

Author Affiliations +

Proceedings Volume 7282, 4th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Advanced Optical Manufacturing Technologies; 72821M (2009) https://doi.org/10.1117/12.830880
Event: AOMATT 2008 - 4th International Symposium on Advanced Optical Manufacturing, 2008, Chengdu, Chengdu, China

Abstract

Not only harmonic diffractive microlens has a common focus for a number of discrete wavelengths, but also the ordinary diffractive microlens which is modulo 2π has a common focus for a series of discrete wavelengths, the essence reason of this phenomena is the same, such wavelengths with common focus are called harmonic wavelengths. A number of focuses are generated when monochromatic light wave illuminates an ordinary diffractive microlens. The different focus corresponds to different diffractive order. A series of harmonic wavelengths are focalized by a diffractive microlens at a common focus corresponding to their own diffractive orders. One can design achromatic aberration microlens by using the above characteristic of diffractive microlens. In this paper the diffractive microlens design method and the formula of focallength for various diffractive orders are accounted for. A multilevel diffractive microlens is analyzed by using finite-difference time-domain (FDTD) method. Two-dimensional electric field amplitude distributions for different incident harmonic wavelength are given. The electric field along optical axis for the harmonic wavelengths is plotted at the same time. The results show that the harmonic wavelengths can have common focus. Furthermore, the shorter harmonic wavelength has higher resolution, shorter focal depth, and more focuses than the longer ones.

Citation Download Citation

Yuling Liu, Chenghua Sui, and Pinggen Cai "Vector analysis of the characteristics of diffractive microlens having common focus for a number of wavelengths", Proc. SPIE 7282, 4th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Advanced Optical Manufacturing Technologies, 72821M (20 May 2009); https://doi.org/10.1117/12.830880

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

Members: $17.00

Non-members: $21.00 ADD TO CART

PROCEEDINGS
8 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

Laser sintering

Microlens

Finite-difference time-domain method

Lenses

Lithium

Optics manufacturing

Refractive index

Show All Keywords

Keywords/Phrases

Search In:

Publication Years