Characterization and Upgrading of Adaptive Optics Demonstrator Joseph Curamen Maui Community College Mark Hoffman & Mark Ammons MCC & UCSC-CfAO

Adaptive Optics in General Compensate the atmospheric aberrations Compensate the atmospheric aberrations Reduce the blurring of an image Reduce the blurring of an image Correct the aberration in real time manner Correct the aberration in real time manner

AO Works! No AOwith AO

What is Adaptive Optics Demonstrator? First build by graduate student Mark Ammons of UCSC First build by graduate student Mark Ammons of UCSC Personally help to build and test the system Personally help to build and test the system Small version of AO system compare to big observatory Small version of AO system compare to big observatory Consists of mirrors, cameras, monitors, PC, filters, mounts, and laser module, Consists of mirrors, cameras, monitors, PC, filters, mounts, and laser module,

Adaptive Optics Demonstrator Layout diagram of Adaptive Optics Demonstrator  Layout diagram of Adaptive Optics Demonstrator

Objectives of AO Demonstrator To encourage students to be involve in science, engineering, and technology field To encourage students to be involve in science, engineering, and technology field To learn the basic idea of Adaptive Optics system To learn the basic idea of Adaptive Optics system To show the basic functions of the AO system To show the basic functions of the AO system To train students using AO demonstrator To train students using AO demonstrator To use in Akamai Short Course for demonstration To use in Akamai Short Course for demonstration

Adaptive Optics System Comparison  MCC’s Adaptive Optics Demonstrator  Subaru Telescope’s Adaptive Optics

Goal for AO Demonstrator To expand the AO system To expand the AO system To characterize the deformable mirror To characterize the deformable mirror To add a negative lens to focus in (charge coupled device)CCD array To add a negative lens to focus in (charge coupled device)CCD array To use the Michelson Interferometer To use the Michelson Interferometer

Deformable Mirror 37 actuators Silicon Nitride (1µm) 16mm membrane’s dia. 12mm usable mirror Aluminum housing (2 in.)

Position of Actuators  Actuator numbering  Actuator’s view on PCB

Characterizing the Deformable Mirror Measure the mirror’s flatness Measure the mirror’s flatness Measure the stroke Measure the stroke Measure the strehl ratio Measure the strehl ratio

Mirror’s Flatness Orientation of mirror relative to applied voltage Orientation of mirror relative to applied voltage Correct orientation on its applied voltage Correct orientation on its applied voltage Reduce the system’s vibration Reduce the system’s vibration Needs of specific software and hardware Needs of specific software and hardware

Mirror’s Stroke Voltage regulator Voltage regulator Positive and negative voltage Positive and negative voltage Measuring instrument in µm range Measuring instrument in µm range Needs of specific software and hardware Needs of specific software and hardware

But How? Instruments/equipments availability Instruments/equipments availability Allowable time Allowable time Seek more of professional help Seek more of professional help Funds for materials Funds for materials

My Future! Work for awhile in Subaru Telescope as Telescope Technician Work for awhile in Subaru Telescope as Telescope Technician Transfer to 4 yr. University Transfer to 4 yr. University B.S. Electrical Engineering B.S. Electrical Engineering Have a happy family! Have a happy family!

References Newport Corporation Newport Corporation AgilOptics (Intellite) AgilOptics (Intellite) Claire Max’s website Claire Max’s website Coherent Coherent Melles Griot Optics Guide Melles Griot Optics Guide

Acknowledgements Mark Hoffman, Project Supervisor & ECET Instructor & Coordinator, MCC Mark Ammons, Graduate Student, University of California at Santa Cruz Lisa Hunter, Human Resource Director, Center for Adaptive Optics Malika Moutawakkil, Education Coordinator, Center for Adaptive Optics Wallette Pellegrino, Associate Professor & Co-op Coordinator, Maui Community College Leslie Wilkins, Vice President and Director, Maui Economic Development Board Isla Yap, Program Assistant, Maui Economic Development Board National Science Foundation, Center for Adaptive Optics, Maui Community College, and Maui Economic Development Board, National Science Foundation, Center for Adaptive Optics, Maui Community College, and Maui Economic Development Board, This project is supported by a Research Experiences for Undergraduate (REU) supplement to the National Science Foundation Science and Technology Center for Adaptive Optics, managed by the University of California at Santa Cruz under a cooperative agreement No. AST This project is supported by a Research Experiences for Undergraduate (REU) supplement to the National Science Foundation Science and Technology Center for Adaptive Optics, managed by the University of California at Santa Cruz under a cooperative agreement No. AST