title: Multiband wavelength demultiplexer based on digital planar holography for on-chip spectroscopy applications.
abstract: A novel type of multiband wavelength demultiplexer for on-chip spectroscopy applications is proposed, and first results of the device fabrication and characterization are reported. The devices are based on computer-designed digital planar holograms, which involve millions of lines specifically located and oriented in order to direct output light into designed focal channels according to the wavelength. Devices operate in four individual bandwidths within the visible range (477.2-478.0 nm, 528.8-529.9 nm, 586.4-587.7 nm, 628.9-630.4 nm) with 96 channels and spectral channel spacing down to 0.0375  nm/channel.
authors.affiliation: aBeam Technologies, Castro Valley, California 94546, USA. cp@abeamtech.com
authors.forename: C
authors.initials: C
authors.lastname: Peroz
authors.forename: C
authors.initials: C
authors.lastname: Calo
authors.forename: A
authors.initials: A
authors.lastname: Goltsov
authors.forename: S
authors.initials: S
authors.lastname: Dhuey
authors.forename: A
authors.initials: A
authors.lastname: Koshelev
authors.forename: P
authors.initials: P
authors.lastname: Sasorov
authors.forename: I
authors.initials: I
authors.lastname: Ivonin
authors.forename: S
authors.initials: S
authors.lastname: Babin
authors.forename: S
authors.initials: S
authors.lastname: Cabrini
authors.forename: V
authors.initials: V
authors.lastname: Yankov