Abstract
A novel method for increasing numerical aperture of microlens for biophotonic applications is presented in this paper. It is based on the control of UV curable polymer lenslet volume and surface energy of substrates. The volume control of polymer lenslets for tuning the focal length is accomplished on the substrates with different surface energies by a microdispensing method. Microlens with high numerical aperture is fabricated on the control layer of a hydrophobic polymer deposited on the cover substrate of a microfluidic chip. Microlenses with different numerical apertures have been designed and characterized. The high numerical aperture microlens integrated on a microfluidic chip will allow high-resolution and high signal to noise detection in biophotonic MEMS applications.
| Original language | English |
|---|---|
| Title of host publication | 2nd Annual International IEEE-EMBS Special Topic Conference on Microtechnologies in Medicine and Biology - Proceedings |
| Editors | David Beebe, Andre Dittmar |
| Publisher | Institute of Electrical and Electronics Engineers Inc. |
| Pages | 380-383 |
| Number of pages | 4 |
| ISBN (Electronic) | 0780374800, 9780780374805 |
| DOIs | |
| State | Published - 2002 |
| Event | 2nd Annual International IEEE-EMBS Special Topic Conference on Microtechnologies in Medicine and Biology - Madison, United States Duration: 2 May 2002 → 4 May 2002 |
Publication series
| Name | 2nd Annual International IEEE-EMBS Special Topic Conference on Microtechnologies in Medicine and Biology - Proceedings |
|---|
Conference
| Conference | 2nd Annual International IEEE-EMBS Special Topic Conference on Microtechnologies in Medicine and Biology |
|---|---|
| Country/Territory | United States |
| City | Madison |
| Period | 2/05/02 → 4/05/02 |
Bibliographical note
Publisher Copyright:© 2002 IEEE.
Keywords
- Microlens
- focal length control
- numerical aperture control