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Recently, a novel scheme for mapping the quantum state of a light field onto an atomic ensemble was proposed [@EITPRA] in which the electromagnetically induced transparency plays a major role. This “storage of light” technique enables us to overcome the difficulty of localizing photons which are mainly used as carriers of quantum information. While the storage and retrieval of a single photon state has already been realized, [@DLCZ-EIT; @Kuz] it has not been demonstrated for a squeezed vacuum. It should be noted that the former experiment can be performed conditionally whereas the latter should be demonstrated in deterministic manner and is thus sensitive to field loss. Mapping the squeezed state onto an atomic ensemble is a critical task not only for quantum information processing but also for ultra-precise measurement of atomic spins. To perform such an experiment, it is necessary to generate a high-level squeezed vacuum resonant on an atomic transition. By utilizing KNbO$_3$ crystals, a squeezed vacuum has already been generated resonant on the Cs D-lines (852 nm, 894 nm) and the interaction between the atoms and the squeezed vacuum has also been investigated intensively [@ESP92]. However, there have been relatively few experiments done on the generation of a squeezed vacuum resonant on the Rb D-lines (780 nm, 795 nm), while Rb has played an important role in quantum information processing along with Cs. So far experiments have been limited to -0.9 dB squeezing with quasi-phase-matched MgO:LiNbO$_3$ waveguides [@AKA-PRL] and -0.85 dB squeezing with the self-rotation of Rb itself [@self-rotation]. Note that the KNbO$_3$ crystal which is useful at the Cs resonance line cannot be utilized at the Rb one [@F1]. In this letter we demonstrate -2.75 dB squeezing at 795 nm using a periodically-poled KTiOPO$_4$ (PPKTP) crystal [@F1; @F2], which to the best of our knowledge, is the highest squeezing obtained at the Rb D$_1$ line. Figure \[Abst\_E\_setup\] shows the experimental setup. A continuous-wave Ti:Sapphire laser (Coherent, MBR 110) at 795 nm was employed in this experiment. The beam from the Ti:Sapphire laser was phase-modulated by an electro-optic modulator (EOM). This modulation was utilized to lock a cavity for frequency doubling and a cavity for squeezing using the FM sideband method [@Drever83]. ![Experimental setup. ISO: optical isolator, EOM: electro optic modulator, OPO: sub-threshold degenerate optical parametric oscillator, HBS: 50:50 beam splitter, PT: partial transmittance mirror, HD: balanced homodyne detector, PD: photodiode, SM: single mode fiber.[]{data-label="Abst_E_setup"}](a.eps) The frequency doubler had a bow-tie type ring configuration with two spherical mirrors (radius of curvature of 100 mm) and two flat mirrors. One of the flat mirrors (PT1) had a reflectivity of $90 \%$ at 795 nm and was used as the input coupler, while the other mirrors were high-reflectivity coated. All the mirrors had reflectivities of less than $5 \%$ at 397.5 nm. A 10 mm long PPKTP crystal (Raicol Crystals) was used for second harmonic generation. Figure \[b\] shows the dependence of the blue output power on the fundamental laser power incident on the frequency doubler. The output from the