Nabil M. Lawandy


Dr. Lawandy is the founder, President and Chief Executive Officer of the Company. Dr. Lawandy started his career at the NASA Goddard Space Flight Center where he was a pioneer in the development of sub-millimeter optically pumped lasers. From 1981 to 1999, Dr. Lawandy was a tenured full professor of Engineering and Physics at Brown University where his work focused on instabilities in single and multimode lasers and a wide spectrum of non-linear optics and atom-field interaction problems. In addition to Spectra Systems Corporation, he has founded two other companies, Spectra Disc Corporation and Solaris Nanosciences, and has raised over $80 million in investment capital.  

Dr. Lawandy holds a BA in Physics, and an MSc and Ph.D. in Chemistry, all from The Johns Hopkins University. He has authored over 180 reviewed scientific papers and is an inventor on over 80 US and foreign issued patents. His entrepreneurial and scientific work has been covered in several high profile publications including the London Financial Times, The Economist, Scientific American, Science News, Wall Street Journal, Los Angeles Times, Boston Globe, Fox News and BBC Television. He has also received a Presidential Young Investigator Award, an Alfred P. Sloan Fellowship, a Cottrell Award, a Rolex Award for Enterprise and a Samuel Slater Award for Innovation.

William Goltsos


Dr. Goltsos has been Spectra’s Vice President, Engineering, from April 2000 to the present. From September 1996 to April 2000, he served as a Senior Systems Engineer for Spectra. Prior to that, from 1992 to 1996, Dr. Goltsos served as a Staff Member of the MIT/Lincoln Laboratory’s Optical Communications Group. Dr. Goltsos holds a Ph.D. in Physics from Brown University (1987), an M.S. in Physics from Brown University (1983), and a B.S. in Physics from Rensselaer Polytechnic Institute (1981).

Colleen Hamill


Ms. Hamill has been Spectra’s Chief Financial Officer since June 2022. With extensive financial experience in both public and private businesses, Colleen is responsible for managing all financial operations of Spectra Systems. Before joining Spectra, Colleen served as the Global Controller for Harvard Bioscience, Inc., a US public company in the life sciences sector. Prior to Harvard, Colleen served as Financial Controller/Director of Financial Reporting at Sevcon, Inc., an electronic control systems designer and manufacturer. During her career, Colleen also held other financial positions at Boston-Power Inc (lithium-ion battery developer), Covidien (medical device manufacturer), Brookfield Renewable Power (hydroelectric power developer) and GTECH Corporation (gaming technology company). Colleen’s career started at KPMG Peat Marwick in the audit sector of public accounting. Colleen holds a Bachelor of Science degree in Business Administration with Accounting concentration from Stonehill College and is a Certified Public Accountant.