APPENDIX D. GLOSSARY

AFM

atomic force microscope

ASMO

Advanced Storage Magneto-Optical Disk Group (also called MO7)

B/b

Byte/bit (example: GB = gigabyte, Gb = gigabit)

BDO

binary diffractive lenses

CAD

central aperture detection

CD

compact disk

CD-R

compact disk recordable

CD-ROM

compact disk read only memory

CPU

computer processor unit

CW

continuous wave (laser beam)

DAT

digital audio tape

DDS

digital data storage

DLT

digital linear tape

DOW

direct overwrite

DRAM

dynamic random access memory

DVD

digital video disk

DWDD

domain wall displacement detection

DVD-RAM

DVD random access memory

DVD-ROM

DVD read only memory

DVD + RW

DVD + read write

FAD

front aperture detection

FEP

field emission probe

GMR

giant magnetoresistive (head technology)

GRIN

gradient index lenses

HDD

hard disk drive

HDTV

high definition television

HOE

holographic optical element

LC

liquid crystal

LIM

light intensity modulation

LIMDOW

light intensity modulation direct overwrite

MAMMOS

magnetic amplifying magneto optical system

Mb/s

megabit per second

MB/s

megabyte per second

MD

mini disk

MFM

magnetic field modulation

MEMS

micro-electro mechanical systems

MO

magneto-optic

MP

metal particle (tape)

MR

magnetoresistive

MSR

magnetic super resolution

NA

numerical aperture (NA = sin ø, where ø is the half-angle subtended by the focused cone of light at its apex)

NAIR

National Institute for Advanced Interdisciplinary Research (Japan)

NFO

near field optics

NRRO

non-repeatable runout

NSIC

National Storage Industry Consortium (U.S.)

NSOM

near field scanning optical microscope

NTT

Nippon Telegraph and Telephone Corporation (Japan)

ODD

optical disk drives

OITDA

Optoelectronics Industry and Technology Development Association (Japan)

PA

polyamid

PC

phase change

PEN

polyethylene naphthalate

PET

polyethylene terephthalate

PRML

partial response maximum likelihood

PRC

photorefractive crystals

RAD

rear aperture detection

RAID

redundant array of independent disks

RAM

random access memory

ROM

read only memory

RPR

radial direction partial response (Sony)

RW

read/write

SCIPER

single carrier independent pit edge recording (Sony)

SHG

second harmonic generation

SIL

solid immersion lens

SRC

Storage Research Consortium (Japan)

STM

scanning tunneling microscope

TEM

transmission electron microscope

VCSEL

vertical cavity surface emitting laser diodes

WDM

wave division multiplexing

WORM

write once read many