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P.I., Riccardo DeSalvo*, Senior Resident Scientist

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Presentation on theme: "P.I., Riccardo DeSalvo*, Senior Resident Scientist"— Presentation transcript:

1 California State University, Los Angeles applying for membership in LSC
P.I., Riccardo DeSalvo*, Senior Resident Scientist College of Natural and Social Sciences Grad students: Lamar Glover**, Greta O’Dea+, Julian Bouzanquet, Morgan Shaner+, X. Talbot-Thiebaux+, S. Linker, R. Gonzales Last quarter’s Undergrads: E. Arriaga, E. Barragan, E. Do***, M. Goff***, C. Fajardo***, J. Patel, E. Villarama S. Gallardo, A. Mkrtchyan Note: only a part of these students Will join the LSC group, TBD Only the BOLD certain at this time * Already LSC council member through USannio ** Already LSC member through USannio *** Continuing last quarter act. as grad or underg. + Parallel activity? LVC meeting 08/28-09/02/16 LIGO-G See also: LIGO LIGO-G

2 LVC meeting 08/28-09/02/16 LIGO-G1601681
About Cal State LA Founded in 1947 in the heart of LA Minority serving institution dedicated to engagement, service, and the public good 27,000 students, 87% low income commuters, % first generation college students Undergraduate and Master’s programs Alliance with University of Sannio allowing Cal State LA students to continue their PhD thesis work at both institutions LVC meeting 08/28-09/02/16 LIGO-G

3 LVC meeting 08/28-09/02/16 LIGO-G1601681
About Cal State LA Cal State LA has a strong desire to boost its contributions to scientific research, including making significant contributions towards GW astronomy RdS appointed in Senior Resident Scientist position: annually renewed 40% teaching 50% research 10%service Mandate: Involve undergraduate students in active research as part of their BS curriculum while training graduate students as future mentors Use LIGO as main source of research projects LVC meeting 08/28-09/02/16 LIGO-G

4 About the physics department
Small department (10 Faculty): ~60 Physics undergrads, ~36 Master’s students Provides physics teaching for > 2,000 students/semester from other departments Strong in condensed matter: Oscar Bernal, Radi Jishi, Jose Rodriguez, Edward Reyazi, Guo-Meng Zhao Astrophysics: Susan Tereby Cosmology: Milan Mijic Nuclear Physics: Konrad Aniol Bio Physics: Paul Nerenberg LVC meeting 08/28-09/02/16 LIGO-G Bernal’s lab of super-conductivity

5 About my labs at Cal State LA
Advanced Physics laboratory Each grad student runs a project with help of undergrads Undergrads involved for credit Aim to generate more interest in STEM disciplines Students learn mentoring and teaching while doing new physics Advanced Physics lab Materials engineering lab High School Student Undergrad student Grad student LVC meeting 08/28-09/02/16 LIGO-G

6 Some work already started
Undergrad projects developed on LIGO problems last quarter T G O’Dea, A Mkrtchyan, S. Gallardo T E Arriaga, C Fajardo, L Glover, J Patel, E Villarama T E Arriaga, E Barragan, E Do, M Goff, L Glover Related docs: G /G Those works are followed up by some of the same students LVC meeting 08/28-09/02/16 LIGO-G

7 Cal State LA proposed contributions
Continued studies on scattering points of dielectric mirror coatings and their origin Continue collaboration with USannio and Tsing Hua University in nanocoating development Studies of coating Quality factors(*) Study of dissipation in metals(*) LVC meeting 08/28-09/02/16 LIGO-G (*) subject to funding

8 LVC meeting 08/28-09/02/16 LIGO-G1601681
Preliminary results 1 Lamar Glover Continued studies on scattering points on dielectric mirrors and their origin Lamar found >105 scattering points of diminishing amplitude within stored beam profile Appearing distributed through the depth of layers Only a thermodynamic origin (classical nucleation theory) can explain this large number Interface between crystallite nuclei and glass is strongly frustrated, it may explain anomalous mechanical dissipation in deposited films Opens the way to further thermal noise reduction! LIGO-G LIGO-G LVC meeting 08/28-09/02/16 LIGO-G

9 LVC meeting 08/28-09/02/16 LIGO-G1601681
Preliminary results 2 Undergrads Determined procedure to increase scatterer detection dynamic range in advanced LIGO mirrors illuminated by stored beam Identify position of scattered to camera diffraction limit Developing tracking procedures to provide tracking tool for micro-movements of stored beam on mirror T E Arriaga, C Fajardo, L Glover, J Patel, E Villarama LVC meeting 08/28-09/02/16 LIGO-G

10 LVC meeting 08/28-09/02/16 LIGO-G1601681
Preliminary results 3 Undergrads Developed bright field microscope technique to determine depth and position of features within a coating structure with 50 nm depth resolution Study methods to scan witness samples and actual mirrors for scatterers, as a diagnostic tool to develop lower thermal noise coatings T E Arriaga, E Barragan, E Do, M Goff, L Glover LVC meeting 08/28-09/02/16 LIGO-G

11 Cal State LA proposed contributions
Continue collaboration with USannio and Tsing Hua University in nanocoating development Nano-layering below nuclei minimal size may suppress nucleation Thermal noise will be reduced if crystallite nuclei are the location of mechanical losses Will apply for financial support from NSF to send person(s) to USannio to commission/run the new coating facility LIGO-G LVC meeting 08/28-09/02/16 LIGO-G

12 Cal State LA proposed contributions
Julian Bouzenquet (to Usannio) Julian (perspective PhD student): Develop techniques for Q-factor measurement on sub-µm thickness SiN substrates Starting using USannio resources Will apply for NSF financing for continuation of studies LVC meeting 08/28-09/02/16 LIGO-G

13 Other Cal State LA possible contributions
Greta O’Dea Greta in his thesis project started to: Study of dissipation in metals repeating with modern means Kimbal, Lovell, “Internal friction of solids” Phys. Rev. 1927 Looking for Maraging replacements in view of lower frequency suspensions/seismic attenuation Synergic with big-G measurement studies Longer term development Started using internal mini grant apply for external financing for continuation LVC meeting 08/28-09/02/16 LIGO-G

14 LVC meeting 08/28-09/02/16 LIGO-G1601681
Preliminary results 4 Undergrads Preliminary Results: Established feasibility of determining marker position with 60 nm resolution T G O’Dea, A Mkrtchyan, S. Gallardo LVC meeting 08/28-09/02/16 LIGO-G

15 LVC meeting 08/28-09/02/16 LIGO-G1601681
Thanks for your attention The Cal State LA group will strive to give its strong contribution to the future of Gravitational Wave Astronomy LVC meeting 08/28-09/02/16 LIGO-G

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