TY - RPRT TI - Ultra compact spectrometer apparatus and method using photonic crystals AU - Ting, David Z. AU - Hill, Cory J. AU - Bandara, Sumith V. AU - Gunapala, Sarath D. PY - 2009 UR - https://ntrs.nasa.gov/citations/20100008446 ID - 20100008446 ER -