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All-biomaterial laser using vitamin and biopolymers
Sedat Nizamoglu1, Malte C Gather, Seok Hyun Yun
1Harvard Medical School and Wellman, Center for Photomedicine, Massachusetts General Hospital, 65 Landsdowne St, UP-5, Cambridge, Massachusetts, 02139, USA.
Advanced Materials (Deerfield Beach, Fla.)
|January 16, 2014
Summary
Researchers developed novel lasers using safe biomaterials like Vitamin B2. These microdroplet lasers operate efficiently on a special substrate, enabling low-energy, high-power performance for advanced applications.
Area of Science:
- Biomaterials Science
- Optoelectronics
- Laser Technology
Background:
- Biocompatible materials are increasingly explored for advanced optical devices.
- The U.S. Food and Drug Administration (FDA) approves Generally-Recognized-As-Safe (GRAS) substances for various applications.
Purpose of the Study:
- To demonstrate lasers utilizing GRAS substances.
- To investigate the lasing properties of Vitamin B2-doped microdroplets on a specific substrate.
Main Methods:
- Fabrication of Vitamin B2-doped microdroplets.
- Trapping microdroplets on a super-hydrophobic poly-L-lactic acid substrate.
- Optical pumping to induce and measure lasing.
Main Results:
- Successful generation of whispering gallery mode lasing in Vitamin B2-doped microdroplets.
- Lasing achieved at low optical pump energies (15 nJ/pulse).
- High power density demonstrated (approximately 1 kW/mm2).
Conclusions:
- GRAS substances can be effectively used for laser fabrication.
- Vitamin B2-doped microdroplet lasers offer efficient and low-energy operation.
- The developed system shows potential for biocompatible optoelectronic applications.
