Characterization and Characterization and Upgrading of Adaptive Upgrading of Adaptive Optics DemonstratorOptics Demonstrator

Joseph CuramenJoseph CuramenMaui Community CollegeMaui Community College

Mark Hoffman & Mark AmmonsMark Hoffman & Mark AmmonsMCC & UCSC-CfAOMCC & UCSC-CfAO

Adaptive Optics in Adaptive Optics in GeneralGeneral

Compensate the atmospheric Compensate the atmospheric aberrationsaberrations

Reduce the blurring of an imageReduce the blurring of an image

Correct the aberration in real time Correct the aberration in real time mannermanner

AO Works!AO Works!

No AONo AO with AOwith AO

What is Adaptive Optics What is Adaptive Optics Demonstrator?Demonstrator?

First build by graduate student Mark First build by graduate student Mark Ammons of UCSCAmmons of UCSC

Personally help to build and test the systemPersonally help to build and test the system

Small version of AO system compare to big Small version of AO system compare to big observatoryobservatory

Consists of mirrors, cameras, monitors, PC, Consists of mirrors, cameras, monitors, PC, filters, mounts, and laser module, filters, mounts, and laser module,

Adaptive Optics DemonstratorAdaptive Optics Demonstrator

Layout diagram of Adaptive Optics Layout diagram of Adaptive Optics DemonstratorDemonstrator

Objectives of AO Objectives of AO DemonstratorDemonstrator

To encourage students to be involve in To encourage students to be involve in science, engineering, and technology science, engineering, and technology fieldfield

To learn the basic idea of Adaptive To learn the basic idea of Adaptive Optics systemOptics system

To show the basic functions of the AO To show the basic functions of the AO systemsystem

To train students using AO demonstratorTo train students using AO demonstrator To use in Akamai Short Course for To use in Akamai Short Course for

demonstrationdemonstration

Adaptive Optics System Adaptive Optics System ComparisonComparison

MCC’s Adaptive Optics MCC’s Adaptive Optics DemonstratorDemonstrator

Subaru Telescope’s Subaru Telescope’s Adaptive OpticsAdaptive Optics

http://www.naoj.org/Introduction/instrument/AO.html

Goal for AO DemonstratorGoal for AO Demonstrator

To expand the AO systemTo expand the AO system

To characterize the deformable To characterize the deformable mirrormirror

To add a negative lens to focus in To add a negative lens to focus in (charge coupled device)CCD array(charge coupled device)CCD array

To use the Michelson InterferometerTo use the Michelson Interferometer

Deformable MirrorDeformable Mirror

37 actuators37 actuators Silicon Nitride (1Silicon Nitride (1µmµm)) 16mm membrane’s 16mm membrane’s

dia.dia. 12mm usable mirror12mm usable mirror Aluminum housing (2 Aluminum housing (2

in.)in.)

Position of ActuatorsPosition of Actuators

Actuator numbering

Actuator’s view on PCB

Characterizing the Characterizing the Deformable MirrorDeformable Mirror

Measure the mirror’s flatnessMeasure the mirror’s flatness

Measure the strokeMeasure the stroke

Measure the strehl ratioMeasure the strehl ratio

Mirror’s FlatnessMirror’s Flatness

Orientation of mirror relative to applied Orientation of mirror relative to applied voltagevoltage

Correct orientation on its applied voltageCorrect orientation on its applied voltage

Reduce the system’s vibrationReduce the system’s vibration

Needs of specific software and hardwareNeeds of specific software and hardware

Mirror’s StrokeMirror’s Stroke

Voltage regulatorVoltage regulator

Positive and negative voltagePositive and negative voltage

Measuring instrument in µm rangeMeasuring instrument in µm range

Needs of specific software and Needs of specific software and hardwarehardware

But How?But How?

Instruments/equipments availabilityInstruments/equipments availability

Allowable timeAllowable time

Seek more of professional helpSeek more of professional help

Funds for materialsFunds for materials

My Future!My Future!

Work for awhile in Subaru Telescope Work for awhile in Subaru Telescope as Telescope Technicianas Telescope Technician

Transfer to 4 yr. UniversityTransfer to 4 yr. University

B.S. Electrical EngineeringB.S. Electrical Engineering

Have a happy family!Have a happy family!

ReferencesReferences

Newport CorporationNewport Corporation AgilOptics (Intellite)AgilOptics (Intellite) Claire Max’s websiteClaire Max’s website CoherentCoherent Melles Griot Optics GuideMelles Griot Optics Guide

AcknowledgementsAcknowledgementsMark HoffmanMark Hoffman, , Project Supervisor & ECET Instructor & Coordinator, MCCProject Supervisor & ECET Instructor & Coordinator, MCC

Mark AmmonsMark Ammons, , Graduate Student, University of California at Santa CruzGraduate Student, University of California at Santa Cruz

Lisa HunterLisa Hunter, , Human Resource Director, Center for Adaptive OpticsHuman Resource Director, Center for Adaptive Optics

Malika MoutawakkilMalika Moutawakkil, , Education Coordinator, Center for Adaptive OpticsEducation Coordinator, Center for Adaptive Optics

Wallette PellegrinoWallette Pellegrino, , Associate Professor & Co-op Coordinator, Maui Associate Professor & Co-op Coordinator, Maui Community CollegeCommunity College

Leslie WilkinsLeslie Wilkins, , Vice President and Director, Maui Economic Development BoardVice President and Director, Maui Economic Development Board

Isla YapIsla Yap, , Program Assistant, Maui Economic Development BoardProgram Assistant, Maui Economic Development Board

National Science FoundationNational Science Foundation, , Center for Adaptive OpticsCenter for Adaptive Optics, , Maui Maui Community CollegeCommunity College, and , and Maui Economic Development Board,Maui Economic Development Board,

This project is supported by a Research Experiences for This project is supported by a Research Experiences for Undergraduate (REU) supplement to the National Science Undergraduate (REU) supplement to the National Science Foundation Science and Technology Center for Adaptive Optics , Foundation Science and Technology Center for Adaptive Optics , managed by the University of California at Santa Cruz under a managed by the University of California at Santa Cruz under a cooperative agreement No. AST-9876783cooperative agreement No. AST-9876783..